CUMIC STEEL LIMITED

Steel Rods(2024年02月08日)

cumic — 2024-01-26T15:22:29+0900

https://www.cumic.com/products/steel-rods.html

Carbon steel rods for sale are steel products designed in the pattern of round bars or rod, rectangular or flat bars, square bars, hexagons, and other patterns of bar stock. After the steel is produced in steel mills into long continuous strips of different sizes and shapes, these strips can be cut at regular intervals and allowed to cool, making each segment become a piece of bar stock. These shapes also come in billet form and generally include a cross-section based on the shape of rod or bar stock. Cumic Steel(professional steel rod suppliers) is engaged in manufacturing various types of steel rods with different steel rods prices as a specialized steel rod company.

PRODUCT RANGE OF STEEL RODS
At CUMIC Steel, we supply a wide range of long steel rod for a variety of applications. Our product range mainly includes rebar steel and wire rod steel. For over a decade, we have been engaging all types of top-quality mills to supply a wide range of steel rods for all your application needs. We aspire to provide our customers with top-tier quality section steel products and related value-added services. Our wide selection of steel rods can satisfy your needs for various applications in diverse sectors. With our outstanding services, you can expect a professional, pleasant, and cost-effective purchasing experience.

Steel PC Strand(2024年02月07日)

cumic — 2024-01-26T15:21:40+0900

https://www.cumic.com/products/steel-pc-strand/

OVERVIEW OF STEEL PC STRAND
Steel PC strand, also known as prestressed steel strand, refers to a kind of steel made product composed of china steel wire rope. Different layers can be added on its surface to meet various uses, such as the galvanized layer/ zinc-aluminum alloy layer/ aluminum clad/ copper plating layer/ epoxy coated surface, etc. As a steel wire rope supplier, Cumic is devoted to producing various types with attractive price.

FEATURES OF STEEL PC STRAND
1
Compared to other strand material, steel PC strands require relatively higher strength and yield strength.

2
Steel PC strands possess great elasticity performance

3
Improvement of service lifetimes by adding various types of layers and surfaces

As a pc strand supplier, we will do our best to meet all the needs of customers.

CUMIC Steel offers extensive types of steel products with reasonable steel prices for your industry. We have earned our reputation through consistent performance in quality products, professional expertise, competitive prices, prompt delivery, as well as a series of value-added services like quality control, financial services, after-sale services, etc. All in all, CUMIC is a professional steel products supplier.

Steel Hexagon Bar(2024年02月06日)

cumic — 2024-01-26T15:19:38+0900

https://www.cumic.com/products/steel-hexagon-bar.html

Hexagonal steel bar refers to a kind of steel bar that can be used in various applications when case hardening quality and appropriate mechanical properties are required. Steel hex bars can be used in numerous industrial applications like chemical equipment, marine equipment, storage tanks, aerospace parts, and more. They are also great materials for manufacturing moving parts and small parts such as bolts, screws, gears, and valves.

PRODUCT RANGE OF STEEL HEXAGON BAR
Our range of hexagonal steel bar is supplied as hot rolled, cold drawn condition that is in sync with different commercial grades and international standards. As one of hexagonal steel bar suppliers, we have established corporations with hundreds of steel mills and well-known partners to provide a large range of steel hex bars that are available in a variety of sizes and tolerances.

If you want to know more kinds of hexagon steel rod, please visit our website.

CUMIC Steel offers extensive types of quality steel products with reasonable steel prices for your industry. We have earned our reputation through consistent performance in quality products, professional expertise, competitive prices, prompt delivery, as well as a series of value-added services like quality control, financial services, after-sale services, etc. All in all, CUMIC is a professional steel products supplier.

Steel Grating(2024年02月05日)

cumic — 2024-01-26T15:19:03+0900

https://www.cumic.com/products/steel-grating/

OVERVIEW OF STEEL GRATING
Steel gratings are sorts of finished steel products formed with welding rectangular bearing rods and crossbars, where the welding metho d provides a reliable fusion of crossbars and bearing rods. These types of products are suitable for different industries, such as power stations, boilers, shipbuilding, petrochemical, chemical, and industrial plants. Different steel grating types with different steel grating china prices can be provided for your selection.

FEATURES OF STEEL GRATING

1
Galvanized grating for sale have a wide range of applications such as walkways, platforms, safety barriers.

2
Incredibly strong and durable for all types of load bearing applications.

PARAMETER OF STEEL GRATING

StandardYB / T4001-1998 / BS4592-1987 or as per buyer’s option
Size25×3/25×5/32×3/32×5*30*100，
6000×970/903
can also be produced according to specific drawings

As a steel company china, we will do our best to meet all the needs of customers.

Steel Flat Bar(2024年02月04日)

cumic — 2024-01-26T15:18:33+0900

https://www.cumic.com/products/steel-flat-bar.html

As its name implies, flat bar is one of the most recognizable forms of steel bar. Thanks to its workability, alloy steel flat for sale is easy to weld, cut-to-length, drill, and form to fit. These types of steel can be found both in construction and post-construction stages, such as steel structures, industrial maintenance, transportation equipment, etc.

Types of Cold Rolled Steel Flat Bar
Low Alloy Structural Steel
Low-alloy structural steels refer to the types of alloy steels with a small amount of alloy elements less than 3%, which includes many standards and proprietary grades designed to provide a specific combination of required characteristics.

Alloy Structural Steel
Alloy structural steel are the type of steels formed by adding different proportions of alloying elements like manganese, chromium, nickel, molybdenum, vanadium.

Free Cutting Non-Quenched & Tempered Steel
Free-cutting steels are the type of steels made by alloying with additional free-cutting elements such as sulfur, lead, bismuth, phosphorus, selenium, and tellurium.

Stainless Steel Flat Bar
Stainless hardened steel flat bar is a versatile material that can be found in a variety of applications including architecture, medical equipment, packaging equipment.

We can provide kinds of hardened steel rods for sale, if you want to buy flat steel rods, please contact us.

As one of steel companies china, we will do our best to meet all the needs of customers.

Steel Coils(2024年02月03日)

cumic — 2024-01-26T15:17:58+0900

https://www.cumic.com/products/steel-coils.html

A color steel coil refers to a finished steel product such as sheet or strip which has been wound or coiled after rolling. Steel coils can be classified into hot and cold-rolled types, or stainless steel coil, carbon coil, and galvanized steel in accordance with current products and international standards. Cumic Steel is one of professional carbon steel coil suppliers and is specialized in different types of steel coils with competitive price.

PRODUCT RANGE OF STEEL COILS
At CUMIC Steel, we supply a wide range of steel coils for sale for a variety of applications. Our product range includes Hot Rolled Steel Coil, Hot Rolled Checkered Coil, Cold Rolled Steel Coil, Hot Dipped Galvanized Steel Coil, Alumina Steel Coil, Pre-painted Galvanized Steel Coil that are in sync with different commercial grades and international standards. Ever since CUMIC was founded on the vision of "Build the Future with Steel+", we have never stopped dedicating ourselves to offer the best products and services for our customers. With our expertise in steel products, we are committed to providing a wide range of quality coil of steel products for your needs. With long-term cooperative relations with over 200 steel mills and multiple globally known third-party quality control organizations, CUMIC Steel is your trusted partner.

Stainless Steel Wire Rod(2024年02月02日)

cumic — 2024-01-26T15:17:29+0900

https://www.cumic.com/products/stainless-steel-wire.html

OVERVIEW OF STAINLESS STEEL WIRE ROD
Stainless steel is a versatile material common to industrial applications such as lockwire, spring wire, kitchens utensils, food processing plants, and also used extensively in the medical field due to its ability to meet demanding applications at relatively low cost. It provides protection against corrosive environments and can be sterilized easily.

PARAMETER OF SS WIRE ROD

Grade1.Austenitic Stainless Steel: 304, 316, N08028, Nitronic 50, etc
2.Ferritic Stainless Steel: 9Cr1Mo/T91/F91, 409, 430, etc
3.Martensitic Stainless Steel: 410, 420M, Super 13Cr, 440C, etc
4.Duplex Stainless Steel: S31500, S31803, S32205, S32304, S32750, S32760, etc
5.Precipitation-hardening Stainless Steel: 13-8Mo, 15-5PH, 17-4PH, etc
DeliveryHot rolling, Annealing, Solution and Pickling
SizeΦ5.5-20mm

As a stainless steel wire supplier, we can provide kinds of stainless steel wire china for sale, if you are interested, please contact us.

Welcome to CUMIC Steel Limited, an industry-leading steel supplier established in 2006 with a global vision. Our mission is to deliver top-quality steel products and solutions to customers worldwide, driven by professionalism, determination, innovation, and outstanding service.

Stainless Steel Round Bar(2024年02月01日)

cumic — 2024-01-26T15:15:59+0900

https://www.cumic.com/products/stainless-steel-round-bar/

OVERVIEW OF STAINLESS STEEL ROUND BAR
Stainless steel flat bar is a versatile material used for a wide range of purposes. Thanks to its workability, stainless steel flat bar is easy to weld, cut-to-length, drill, and form to fit. CUMIC, a professional stainless steel round bar company, stainless steel round bar supplier, is committed to providing a wide selection of stainless steel flat bar for sale with reasonable prices for your needs. Finishes on bars can vary and include hot rolled, cold drawn and hot forged condition that is in sync with different commercial grades and international standards.

FEATURES OF STAINLESS STEEL ROUND BAR

1
Close tolerance with accurate size

2
High-strength material with excellent corrosion resistance

3
Because of their smooth surfaces, they are also excellent materials for decoration, monuments and sculptures.

PARAMETER OF STAINLESS STEEL ROUND BAR
Grade1.Austenitic Stainless Steel: 304, 316, N08028, Nitronic 50…
2.Ferritic Stainless Steel: 9Cr1Mo/T91/F91, 409, 430…
3.Martensitic Stainless Steel: 410, 420M, Super 13Cr, 440C…
4.Duplex Stainless Steel: S31500, S31803, S32205, S32304, S32750, S32760…
5.Precipitation-hardening Stainless Steel: 13-8Mo, 15-5PH, 17-4PH…
Delivery ConditionHot Rolled, Annealed, Pickled, Cold draw, Sandblast
SpecificationASTM A276/A276M/A484/484M
SizeHot Rolled: 10-120mm
Cold Drawn: 3-60mm
Forged: 120-500mm

As a steel material supplier, we will do our best to meet all the needs of customers.

Galvanized Welded Steel Pipe(Z60-Z500)(2023年)

cumic — 2023-08-15T14:39:47+0900

https://www.cumic.com/products/galvanized-welded-steel-pipe/

OVERVIEW OF GALVANIZED WELDED STEEL PIPE(Z60-Z500)
Galvanised carbon steel pipe with competitive prices are a type of welded steel pipes that have been coated with a layer of zinc. Zinc's intrinsic characteristics provide a barrier against corrosion, so galvanised welded steel pipe & tube for sale can be exposed to outdoor environments for an extended period of time.

FEATURES OF galvanized carbon steel pipe(Z60-Z500)

1
The zinc coating provides outstanding protection from corrosion, almost 10 times more life to the structure.

2
Higher tensile strength and reduced weight.

3
Exceptional surface quality, giving the material better aesthetic looks.

If you are looking for a reliable global steel supplier, don't hesitate to contact us!

Steel in Marine Engineering(2023年)

cumic — 2023-08-15T14:39:23+0900

https://www.cumic.com/ocean-engineering-industry-using-steel.html

Approximately 90% of all goods are transported via sea, making ships one of the most important vehicles in our global economy.

It is estimated that there are 17 million containers of varying types made up the worldwide container fleet, most of which are made of steel.

As a vital material for the ocean engineering sector, marine steel plate plays a crucial role in transportation, shipbuilding as well as marine engineering. However, marine environments can be very demanding on steel materials in these areas as all activities must be very safe and reliable under extremely severe climates and environments.

USES OF STEEL IN SHIPBUILDING
Modern shipbuilding steel plate is well suited for the manufacturing of boats, ships, marine vessels, and other structures, as it is light in weight, high in tensile strength, and better in corrosion resistance than any other traditional shipbuilding steel plate, making it much better for more efficient construction. Most of the offshore and marine structures are created using carbon and alloy steel plates. Ship hulls, upper decks, bulkheads, anchor chains, bulk carriers, as well as container ships all rely on the material properties of these shipbuilding steels.

USES OF STEEL IN MARINE ENGINEERING PROJECTS
In addition to this, steels also play a decisive role in marine engineering projects, and they can be found everywhere as they involve offshore oil platforms, piers, and vessels. Steel with alloying elements enhanced its durability as well as anti-rust and anti-corrosion capability. Structures last longer when made from special steels grade, and they can resist the corrosion that is often found in other steel or alternative materials.

CUMIC SOLUTIONS FOR MARINE ENGINEERING INDUSTRY
CUMIC provides a wide range of quality shipbuilding and marine engineering steel types such as steel plates, steel sections, and a variety of special steels, applicable for shipbuilding, drill pipe, anchor chain, offshore oil platform, etc. We strive to provide marine and offshore steel under the most stringent approval of the production methods of classification societies in different countries, focusing on resistance to marine corrosion steel products for your needs.

CUMIC has provided a wide variety of well-established steel service centers and end-users in the ocean engineering sector with reliable steel products for over a decade. We have established long-term cooperative relations with hundreds of mills to ensure these products are fabricated using premium material and are in sync with various international standards.

If you need any kinds of global steels, please contact us, as a professional steel solutions company, CUMIC is willing to offer you high quality products.

[NEWS] CUMIC Houston Established(2023年)

cumic — 2023-08-15T14:38:56+0900

https://www.cumic.com/news-cumic-houston-launching.html

In December 2015 -- In order to penetrate American market and provide the customers with better services, CUMIC Steel Limited established American Representative Office recently.

Under the concern and guidance of leaders and in efforts of relevant colleagues, CUMIC round bar houston was established in December 2015. This indicates the company’s determination to penetrate American market, meanwhile, CUMIC steel round bar houston is also another attempt to set overseas representative offices after the company established representative offices in India and United Arab Emirates, which are quite successful.

According to information, CUMIC steel bar houston established in Houston also consider that Houston is the largest city in Texas, America and also the economic center of Mexico Gulf Coast. All the time, the company seeks to provide the customers with qualified services, and CUMIC Houston will undoubtedly provide local customers with more efficient services.

If you need any kinds of global steels, please contact us, as a professional steel products supplier, CUMIC is willing to offer you high quality products.

Steel in Mining(2023年)

cumic — 2023-08-15T14:38:32+0900

https://www.cumic.com/mining-industry-using-steel.html

Steel and mining go together like cookies and cream, only maybe not quite so sweet!

In the severe conditions of a mine, wear resistant steel plate is the best material suited for the mining industry.

WEAR RESISTANT STEELS FOR THE MINING INDUSTRY
Steel is commonly used throughout the mining industry and has been developed to have high wear, fatigue resistance, and high strength. With high tensile strength and high wear resistance, steel equipment can be used multiple times in mining without material depreciation. Wear resistant steel plate, also known as abrasion-resistant steel plate, is particularly suitable for mining, applications including liners and structural elements for buckets, skips, chutes, bins, ore pockets, conveyors, dump truck, etc. Therefore, wear resistant steel plate is used in situations where abrasion, wear, tear and impact is particularly critical.

USES OF STEEL IN MINING EQUIPMENT AND MACHINERY
The requirements for steel used in mining applications are not only unique but also challenging, but in the tough conditions of a mine, steel is a perfectly reliable material that can perform as needed. Most of the mining infrastructure is created using wear resistant steel, structural steel, stainless steel, and high strength steel. Top hammers, tools, demolition equipment, drill rigs, mining support equipment, grinding media, mining screens, fluidized bed boilers, pumps, heat exchangers, as well as heavy mining machinery such as mass excavators, bulldozers, shovels, and crushers all rely on the material properties of steel. In addition, steel also has significant cost advantages compared with other materials.

CUMIC SOLUTIONS FOR MINING INDUSTRY
CUMIC provides a wide range of quality steel types such as hot rolled coils, hot rolled sheets, hot rolled plates, wear-resistant steel, and a variety of special steel, applicable for the mining industry including but not limited to abrasion-resistant steel, grinding ball, grinding bar, and mining chain. We strive to provide mining equipment steel with the highest attention paid to exceeding the industry's most stringent standards, focusing on wear-resistant, abrasion-resistant, and impact-resistant steel products for your needs.

CUMIC, a wear-resistant and high-strength steel supplier, has provided a wide variety of well-established steel service centers and end-users in the mining industry with quality steel products for over a decade. We have established long-term cooperative relations with more than 300 steel mills to ensure these products are fabricated using quality material and are in line with various international standards.

As a professional steel trader, we provide quality steel solutions, high strength steel for sale, abrasion resistant round bar, abrasion resistant steel round bar, steel mining, hot rolled steel coil, etc. we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

Jinfei-Maritim 5-Star Apartment Hotel Project(2023年)

cumic — 2023-08-15T14:38:08+0900

https://www.cumic.com/jinfei-maritim-5star-hotel-project/

Jin fei smart city mauritius 5-Star Apartment Hotel Project
Product:
BS 4449 GRADE B500C Rebar

Quantity:
3200 MT

Location:
Mauritius

Project Story

From January to August 2021, CUMIC has supplied a total of over 1600 MT of BS 4449 grade B500C rebar from Turkish Long steel producer Diler Iron & Steel Company INC. to the Maritim's third hotel in Mauritius, for the construction work of hotel structure. Invested by China Shanxi Investments Group Co Ltd, this new apartment hotel is expected to be operational in 2024 to the tune of some Rs 2,6 billion. A total of 3,200 tons of rebars will be used for this iconic hotel project supplied by CUMIC.

This new hotel will be located in the Jin Fei Smart City within the Mauritius Jin Fei Economic Trade and Cooperation Zone. As China's first Free Trade Area with an African country, the completed China-Mauritius free trade area will not only inject new impetus into the consolidation of Africa-China friendship, but will also help further expand bilateral trade and investment exchanges.

As an ideal material choice in the construction sector, rebar offers many unique benefits:

The cross ribs on the bars enhance the bond between the bars and the concrete, thereby increasing the resistance to bending the building

Make a further compressive strength of the building

Effectively enhance the stability of the building to against disasters such as earthquakes

The Maritim hotel will comprise 16-floor twin towers, linked by a 60m flyover with a swimming pool, thus the whole structure will have high stability requirements for material selection. B500C Rebar not only has common features of rebar in standard BS 4449, but also has better ductility than B500B, and plays an important role in improving the stability of the hotel structure.

Note: Believe it or not, the rugby ball-looking contours of twin towers are inspired by the winning of South Africa to the Rugby World Cup 2019!

If you need any kinds of steel china, please contact us, as a professional steel products company, CUMIC is willing to offer you high quality products.

For Appliance Manufacturers: 3 Steel Solutions to Beat your Competitors in 2021(2023年)

cumic — 2023-08-15T14:37:41+0900

https://www.cumic.com/home-appliance-steel-solutions-2021.html

Home appliance manufacturing isn't easy. It's a constantly changing industry full of challenges and competition. Home appliance manufacturers, do you relate to these challenges?

Challenges That You're Probably Facing

· Affordable Durability: If there is only one thing that hasn't changed in this ever-changing industry, it is the need for durability (and at a low cost, too!).

· Visual Differentiation: Stainless steel, matte black, compact appliances... Fashion trends change every other day, and you've got to deliver the latest style before the consumers even know it

· Colour Consistency: I'm pretty sure nobody likes seeing inconsistent colours in their newly decorated kitchen.

We feel your pain, but the good news is that you can tackle these issues with a little help early on the supply chain.

Now let's see how the right selection of steel solutions can make your home appliance manufacturing business easier!

How the Choice of STEEL can be Your Game Changer

On average, 75% of the weight of a typical household appliance comes from steel.

The steel you use plays a vital role in determining the quality of the appliance. The manufacturing of house appliances involves up to dozens of varieties, while I'm going to talk about a few important ones in particular

Challenge - Affordable Durability

Solution - Cold Rolled Steel, Hot-dipped Galvanized Steel, and Alu-zinc Steel

They make up most parts of the appliance's external parts - such as the covers, panels, and base plates of washers, AC, and refrigerators, thanks to superior dimensional tolerances as well as surface finishes.

They also have great aesthetic value, making them ideal for making products that are used to attract consumer attention.

For durability, they have extraordinary hardness and strength that can easily make your products hold up for decades. More importantly, with a professional team of appliance steel experts at CUMIC Steel, your needs for the best material are sorted.

For affordability, you can always get the optimized steel solution, which goes through 3 stages of cost-reducing measures thanks to our vast service network of over 200 steel mills worldwide.

Challenge - Visual Differentiation

Solution - Enamelled Steel

Enamelled steel, now frequently used in home appliances, is a traditional material for modern living, a touch of luxury added to homes of a lighter and more environmentally conscious generation.

It is a product that meets very modern criteria of longevity, aesthetic qualities, hygiene and respect for the environment.

Enameled steel can be coloured in the mass in an unlimited range of colours, with a broad range of surface textures.

It is a product of state-of-the-art technology. While not that many steel mills have fully mastered the manufacturing process, the ones that do are the business partners of CUMIC.

In fact, 9 out of the top 10 steel-producing companies in the world are CUMIC's long-term suppliers, according to worldsteel.

Challenge - Colour Consistency

Solution - Prepainted Galvanized Steel (aka PPGI or Galvalume)

PPGI is a type of pre-coated steel that can be found on almost any colourful home appliances. Not only do they come in all sorts of colours, but they also have a remarkably long service life thanks to the layer of zinc coating!

Now, imagine the damage that inconsistent colours can do to your brand:

The products made from all over the world can be found on showroom floors, in someone's kitchen, and in commercial operations. If they don’t match, it shows a lack of attention to detail and quality. Consistency in colours says so much about your brand, but it's not that easy to control.

Why not control it from the first step, raw materials?

By the time you get the colour coated steel, an integrated supply chain has worked as one to ensure that all colours are matching and everything is in sync with the same standards:

Before production: CUMIC communicates with you to specify all requirements including colours, which will be entered into a strict agreement with the mill.

During production: CUMIC supervises the production process at the mills and conducts sampling inspections regularly for 100% matching colours.

For shipment: CUMIC engages globally known inspection organizations like SGS, BV, and Intertek to carry out strict inspection and recheck on all products again.

In fact, at CUMIC, over 1000 third-party inspection reports are provided, and over 55% of our orders have gone through such strict inspections.

From carefully crafted colour coated steels made in top-tier steel mills, to your customers' kitchens, the colours stay the same, and so will your brand image.

Want to Learn More?

Not sure what grades are the best for your products? Need help with optimizing steel solutions for your home appliance business? We've got you covered!

CUMIC Steel Limited, active in the world of integrated steel solutions for over 15 years, is specialised in supplying home appliance steels. We know steel, and we know appliances.

For more information, don't hesitate to contact us via marketing@cumic.com, and don't forget to follow us on LinkedIn and Facebook!

If you need any kinds of china mild steel, please contact us, as a professional steel products company, CUMIC is willing to offer you high quality products.

High-Strength Low-Alloy Steels in China - Development and Applications(2023年)

cumic — 2023-08-15T14:37:07+0900

https://www.cumic.com/high-strength-low-alloy-steel-china.html

High-Strength Low-Alloy Steels in China - Development and Applications
Part 1 A Brief History of China's HSLA Steel

As a type of alloy steel china, the origin of China high strength china low alloy steel (HSLA steel) can be traced back to the 1950s. Ever since then, China's HSLA steel has witnessed tremendous progress from import to independent R&D, approaching the cutting-edge technology of foreign origins.

From China's 6th Five-Year Plan to the 9th Five-Year Plan, there are four breakthroughs as follows:

To produce HSLA steel in accordance with advanced international standards;

To import internationally advanced HSLA steel grades;

To upgrade Chinese traditional high strength low alloy steel grades based on foreign research results

Keep up with the latest technological developments while designed Chinese high strength low alloy steel grades independently

During the period of transformation and development, China began to independently research and develop HSLA steel grades, and microalloying elements based on Nb, V, and Ti have been widely used in high strength steel bar. Since then, the desired properties of modern HSLA steels have surfaced.

Part 2 Common HSLA Steel Applications

In the past decade, micro-alloy technology and HSLA steel grades have undergone great innovations in China, especially the development of Nb-containing (including Nb-V and Nb-Ti microalloyed steels) and Nb-treated steels, and widely used in oil and gas pipelines (X52-X70 steel), heavy-duty highways, and off-road vehicles, bridges, 32-40Kg high-strength shipbuilding, offshore structures, high-rise building structures, mining, excavation, lifting, dump trucks, railway heavy rails and auxiliary materials, automobile beams, rolling wheels, corrosion-resistant steel, containers, etc.

Nowadays, engineering structures such as bridges, ships, vehicles, high-pressure vessels, oil & gas pipelines, and large steel structures are additional uses for these HSLA steels that require higher strength. Since this type of high strength low alloy steel does not require complicated processing or even heat treatment, it is the best alternative to conventional mild carbon steel grades.
There are many high strength low alloy steel suppliers, but we are one of the best choices for you.

If you need any kinds of carbon steel, please contact us, as a professional steel trading company, CUMIC is willing to offer you high quality products.

U-Channel Steel(2023年)

cumic — 2023-05-24T15:22:07+0900

https://www.cumic.com/products/u-channel-steel/

OVERVIEW OF U-CHANNEL STEEL
U Channel steel for sale is rolled from steel sheet into U shapes. A piece of china u channel steel consists of a wide "web" and two flanges. The flanges can either be parallel or tapered in shape. U-Channel steel is frequently used as a bridging solution. It is, in fact, one of the most common steel products used in bridging to provide resistance for stud rotation and minor axis bending under wind and axial loads. As a professional u channel steel suppliers, Cumic tries best to provide high quality u section steel to customers with attractive price.

FEATURES OF galvanised steel u channel

1
u shaped channel metal is a versatile, durable building material that can add strength and longevity to a wide variety of projects.

2
U-Channel also provides good compatibility for connecting to other steel members and concrete/brick surfaces.

PARAMETER OF U-CHANNEL STEEL
GradesQ235, SS400 / SM490, A36 / A572 GR.50, S235JR / S275JR / S355JR
Size150*25*3*6mm -- 125*65*5.3*6.8mm
Size250*37*4.5mm -- 400*102*12.5mm

There are many china steel suppliers, but we are one of the best choices for you.

Steel in Energy(2023年)

cumic — 2023-05-24T15:21:33+0900

https://www.cumic.com/energy-industry-using-steel.html

The special steel energy used to manufacture a tonne of steel has been reduced by 61% in the past 50 years.

Recycling steel can save energy equivalent to powering at least a 60-watt light bulb for nearly 4 years.

Energy conservation also remarkably reduces the generation of carbon dioxide.

Our modern civilization is built on energy. Whether based on fossil fuels, nuclear technology, or forms of renewable energy like wind power and solar, steel plays an indispensable role in energy production and transmission, as well as improving energy efficiency.

STEEL: MOST POPULAR MATERIAL IN THE ENERGY MARKET
Energy is an enormous, diverse and extremely demanding market as all its production must be very safe and reliable under extremely severe temperature and pressure conditions. Steel is a choice solution favored for its excellent corrosion resistance, precise tolerances, as well as stable performance, especially when the requirements for mechanical strength are particularly critical. Although many other metals are used in this field, steel is undoubtedly the most common and popular material in the energy market.

USES OF STEEL IN ENERGY PRODUCTION AND DISTRIBUTION
When thinking about energy, most tend to think of oil and natural gas extraction. Steels play a critical role in the extraction, production as well as the distribution of energy, equipment for oil and natural gases extraction, pipelines, and storage tank are made of a significant amount of steel because it can withstand harsh and abrasive environments, much of the machinery that is used to do the drilling is dependent on heavy machinery, and on parts that are frequently in contact with harsh and abrasive environments.

USES OF STEEL IN SOLAR AND WIND POWER GENERATION
Additionally, steels also play a decisive role in the further expansion of renewable energy. steel occupies an excellent position to provide a safe, green, and sustainable solution for the future of energy. Every renewable energy structure, whether a wind turbine or a solar panel requires steel.

Almost every part of the onshore and off-shore wind turbines is built with steel; from the foundation to the gears and tower, wind turbine steel plays a significant role in improving strength for more efficient wind turbines. Due to the strength provided by this type of wind turbine metal, higher and more efficient wind turbines can be built.

In the field of solar power, steel plays a vital role in converting solar energy into electricity and hot water, serving as the basis for solar panels, heat exchangers, tanks, and pumps. The future of steel in the energy transition is exciting.

CUMIC SOLUTIONS FOR ENERGY INDUSTRY
Together with our customers, CUMIC provides a variety of high-quality steel types, such as hot rolled steel coils, hot rolled steel sheets, boiler tubes, steel plates, coated steels like ZAM steel, and various special steels, suitable for the oil and gas as well as wind and solar energy industries, including but not limited to boilers and pressure vessels, pipelines, wind tower structures, wind power plants, hydroelectric power stations, nuclear power plants, oil well casings, etc.

CUMIC is committed to providing customers with reliable and innovative solutions for the energy sector. In addition to meeting the mechanical strength conditions, our materials can also achieve excellent material performance under extreme temperature differences. Our extensive range of products and value-added services enable us to meet the requirements of customers in the market.

There are many special steels suppliers, but we are one of the best choices for you. Contact us to buy china steel.

Zinc-Aluminum-Magnesium Steel: Basics and History(2023年)

cumic — 2023-05-24T15:21:04+0900

https://www.cumic.com/development-history-of-zincaluminummagnesium-alloy-coated-steel.html

Zinc aluminum magnesium coated steel is a new type of coating product, and it is also an area where many steel mills in China have stepped in recent years.

When we want to know a product, we usually want to know its history first, but also the manufacturer's product and development background. After understanding these two aspects, we can have a more systematic and clear understanding.

1. WHAT IS ZINC-ALUMINUM-MAGNESIUM COATED STEEL?
According to the definition of European standard EN10346-2015, zinc-aluminum-magnesium coating is a ternary alloy coating whose main component is zinc, and the content of aluminum and magnesium is between 1.5-8% (where the magnesium content is not less than 0.2%).

Compared with traditional coatings such as hot-dip galvanizing, galvanized aluminum and zinc-iron alloy, zinc-aluminum-magnesium coated steels boast better corrosion resistance.

1. As the zinc aluminium magnesium coating steel sheet is relatively thin and dense, it is not easy to peel off the coating;

2. Corrosion products will flow and wrap the incision, so the protection performance of the incision and defect is better;

3. It also has good corrosion resistance in some corrosive environments (such as animal husbandry and coastal areas);

4. It can replace some of the less demanding stainless steels, or application scenarios such as galvanizing after processing, which can simplify the user's processing procedures.

2. THE HISTORY OF ZINC-ALUMINUM-MAGNESIUM COATED STEEL
The industry generally believes that the first commercial production and promotion of zinc-aluminum-magnesium coated steel sheets were the two Japanese steel mills, Nisshin Steel and Nippon Steel. (After the merger of Nippon Steel and Nisshin Steel, it is now renamed as Nippon Steel)

In fact, as early as the 1960s and 1970s, American steel companies had already started the development of zinc-aluminum-magnesium-coated steel but did not carry out commercial production.
Then, in the 1990s, Nisshin Steel and Nippon Steel had done a lot of work on the research and development of zinc-aluminum-magnesium coated steels, made significant progress, and started commercial production of zinc-aluminum-magnesium alloy coated steel sheets.

Note: It is said that at the beginning it aimed to get a product with performance and price between stainless steel and hot-dip galvanized.

After that, major steel companies such as ArcelorMittal, Thyssenkrupp Steel, Tata steel European, and Australian steel company BlueScope also successively developed similar products of their respective brands.

In recent years, Chinese steel mills have also followed up, and major companies have also begun to put zinc-aluminum-magnesium coated steel into production.

About CUMIC

CUMIC Steel has more than 15 years of experience in global steel trading, providing both steel mills and end-users with professional, efficient, and reliable steel supply solutions. We have established long-term cooperative relations with more than 200 steel mills to ensure these products are fabricated using quality material and are in line with various international standards.

We are a team of professional, passionate, and committed steel experts who dedicate our continuing efforts to the best experience of all steel users and everyone in the supply chain. We offer technical support, 3rd party quality control services, steel marketing intelligence information, and many other value-added services to you. Get in touch today via cumic@cumic.com, and keep updated by following us on LinkedIn and Facebook.

There are many special steels suppliers, but we are one of the best choices for you. Contact us to buy flat steel sheet.

Corrosion in Coated Steel Plate – Why it Happens and How to Avoid it(2023年)

cumic — 2023-05-24T15:20:23+0900

https://www.cumic.com/corrosion-in-coated-steel-plate-why-it-happens-and-how-to-avoid-it.html

The corrosion of metal materials can usually be classified into the following types:

I.Dry corrosion and wet corrosion.

II. Chemical corrosion, electrochemical corrosion, and physical corrosion.

III. Pitting corrosion and stress corrosion fracture.

1. FACTORS AFFECTING THE CORROSION RESISTANCE OF COATED STEEL SHEETS
The corrosion resistance of coated steel sheets is usually expressed by the degree of corrosion damage such as loss of gloss, discoloration, chalking, fine cracking, cracking, blistering, and rust spots.

There are many factors that can affect the corrosion resistance of coated steel sheets, which include the type of substrate of the coated steel plate, the type of paint, the number and thickness of coating layers, the service environment of the coated steel plate, and the machining, transportation, and storage in the application of the coated steel plate.

Solely based on the analysis of the principle of coating characteristics of the coated steel plate, the fundamental factors that determine the corrosion resistance of coated steel sheets are the structural characteristics of the coating and the corrosion resistance of the substrate. The protectiveness of the coating under the atmospheric corrosion environment is mainly determined by the corrosion resistance or the aging resistance of the coating.

Although the organic coating has the ability to isolate the steel from the external corrosive environment, there are usually tiny pinholes in the organic coating through which external moisture, steam, oxygen and various ions can penetrate into the interface between steel plate and coating. Under this situation, it can form a local battery and cause corrosion under the film.

The organic coating will bubble when corrosion occurs under the coating film. The bubbling position is consistent with the position of the anode and cathode of the local battery, where the anode area is acidic and the coating tends to become brittle. The anode area is alkaline, and the coating softens and expands gradually, which make the adhesion worse. At the same time, due to the intrusion of water in the cathode domain, the bubbling is prone to grow up and rupture, which eventually lead to the large-area corrosion.

The corrosion rate of the coated steel sheets is not only related to the physical and chemical properties of the organic coating, but also dependent on the gas, liquid and ion resistance of the organic coating. The corrosion reaction of steel in contact with water and air is the result of local battery action, which is the so-called electrochemical corrosion. The organic coating has the function of isolating steel from the external corrosive environment.

When ions pass through the coating and penetrate into the interface between the steel and the coating to form a local battery, the high resistance of the organic coating is equivalent to the resistance of inserting a resistor between the two poles of the local battery, which makes it difficult for local current to flow, thereby hindering the steel corrosion.

So, it can be seen that the anti-corrosion performance of the coating is closely related to the composition, thickness, uniformity of the coating, and the bonding force between the coating and the steel. Increasing the coating thickness and number of layers will reduce the actual tiny pinholes in the coating, which will also improve the corrosion resistance of the coating. For example, two times of coating and baking processes, or three times of coating and baking processes can be used to obtain excellent corrosion resistance coated steel plate.

The anti-corrosion mechanism of coated steel plate is to isolate the substrate from the corrosive medium by the coating and to prevent the chemical or electrochemical reaction on the surface of the substrate from happening. Therefore, the anti-corrosion problem that we finally need to study should be integrated into the chemical corrosion and electrochemical corrosion of the coated steel plate substrate surface.

2. HOW TO CONTROL THE CORROSION OF COATED STEEL SHEETS

When selecting metal materials, it is necessary to choose those that are resistant to atmospheric corrosion;

When designing the structure, it is necessary to avoid cracks, grooves and other parts that are easy to accumulate water and cause corrosion stress cracking;

Change the composition and add corrosion inhibitor to inhibit the corrosion process;

Make anti-rust treatment before packaging, and keep dry and clean during storage. Take use of surface protective covering coating.

In order to improve the corrosion resistance and special surface properties of ordinary steel sheets, various color coated steel sheet have been developed on the basis of ordinary steel sheets.

The coating of corrosion plate can be roughly divided into three types: organic coating, inorganic coating and composite coating. Among them, the development of organic coating steel plate is the fastest. Organic coatings can be formulated into various colors and patterns, so they are usually called color coated steel plates. The original plate of color coated steel plate usually adopts hot-rolled steel plate and galvanized steel plate. The organic coating is polyvinyl chloride, polyacrylic acid resin, epoxy resin, alkyd resin and so on. The combination of coating and steel plate can be divided into film lamination method and paint coating method.

The color coated steel plate can also be made into a profiled plate, whose cross-sectional shape and size are basically similar to the aluminum alloy profiled plate. This kind of profiled board has the advantages of good durability, beautiful appearance, and convenient construction, so it is now widely used in the industry. The base of the coated steel plate is galvanized steel sheet, and both the back and the front are painted to ensure its corrosion resistance. The first layer on the front is primer, usually epoxy primer, which has strong adhesion to metal. The back is also coated with epoxy or acrylic resin. In the past, alkyd resin was used for the surface layer, but now it is mostly polyester paint and acrylic resin paint.

If you need any kinds of flat carbon steel, please contact us, as a professional steel supplier, CUMIC is willing to offer you high quality products.

Steel in Construction(2023年)

cumic — 2023-05-24T15:18:31+0900

https://www.cumic.com/construction-industry-using-steel.html

Construction

Over 50% of the world steel demand comes from construction, one of the most significant industries regarding steel application.

hot rolled steel buildings are self-supporting: Steel buildings barely require additional pillars or beams to support the structure.

Steel is flexible in combination with other materials.

Steel is earthquake resistant due to its ductility.

Steel is unarguably one of the most essential and fundamental materials in buildings and infrastructure. Construction has always been the most significant industry for steel application, which accounts for over 50% of the world's steel demand. Accompanied by the rapid growth of urbanization and the continuously growing world population, the demand for buildings and infrastructure also continues to rise, which results in the expected increasingly high demand for steel in the construction sector.

Steel manufacturers around the globe are increasingly offering steel rod for construction solutions that enable energy-efficient and low-carbon-neutral buildings. Not only is steel cost-effective, readily available, and safer, its endless recyclability and other intrinsic properties allow for improved environmental performance across the entire life cycle of buildings. Various types of buildings and infrastructure rely on steel for its superior strength, durability, and versatility.

CUMIC provides a wide range of quality steel types such as hot rolled coils, hot-rolled sheets, and hot-rolled plates for construction, applicable for construction material including but not limited to general structural steel, welded-steel structures, bridge steel, weather resistance of high-performance bridge steel, high-rise building structure, and high strength steel.

For over a decade, we have been engaging all types of top-quality mills to supply a wide range of construction steel for all your application needs. We aspire to provide our customers with top-tier quality steel products and related value-added services. Our wide selection of products can satisfy your needs for various applications in construction. With our outstanding services, you can expect a professional, pleasant, and cost-effective purchasing experience.

As one of the most professional global steel traders, we provide quality steel solutions, carbon steel, carbon steel for sale, hot rolled steel coil, etc. we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

Company Profile(2023年)

cumic — 2023-05-24T15:17:49+0900

https://www.cumic.com/about-cumic/

CUMIC steel sections company was established in 2006 with a vision to provide top quality steel products and solutions for the global market; ever since then, we have always been dedicated to fulfilling that vision with persistent professionalism, determination, innovation, and superb service. With a management team that has vast industry experience and expertise, as well as various professional and enterprising teams, we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

If you need any kinds of global special steel products, please contact us, as a professional steel products company, CUMIC is willing to offer you high quality products.

3 Policy Changes that May Affect How You Buy Steel from China(2023年)

cumic — 2023-05-24T15:17:24+0900

https://www.cumic.com/3-Policy-Changes-Steel-China.html

1. Chinese Govt Efforts to china cold rolled steel prices

Since early this year, due to multiple factors, some commodities have seen an extended price rally, with the China’s steel prices hitting records. For this reason, since May, the Chinese government has been ramping up measures to curb soaring prices in a bid to ensure market stability and discourage speculation and irregularities. Some abnormal market transactions such as price gouging and hoarding have been dealt with to the full extent of the law and brought to light.

The National Development and Reform Commission of China (NDRC), together with other relevant government departments, successively held meetings with leading associations and producers in the commodity industry, reminded that participants with the market influence in the sector to operate in accordance with laws and regulations, track trends in the market and maintain price stability. Consequently, China's steel market has gradually stabilized, with steel prices pulling back significantly.

China's domestic steel prices trend (Jan 2020-May 2021)

2. Crude Steel Production Cuts

As one of the largest carbon emitters among all manufacturing sectors, China's steel industry accounts for about 13% of the country's total. In response to the national decarbonization campaign, some Chinese steel industry giants have rolled out carbon emission reduction plans, vowing to reach the peak carbon emissions by 2025 and cut emissions from the peak by 30% in 2030, five years ahead of the general peak carbon emissions target proposed in China’s 14th Five-Year Plan.

However, it will be hard for Chinese steel producers to cut production in the coming months because crude steel production from China climbed 13.9% Y-o-Y to 473.1 Mt for the first 5 months, a record high on the back of robust local demand and reasonable profit margins at mills, according to the latest data. It is estimated that China's crude steel output may exceed 1.13 billion tons in 2021, which means that this year's output may increase by 7.79% from 1.05 billion tons in 2020.

Owing to this, the Chinese government has introduced several initiatives to reduce steel output in order to mitigate any potential problems of overcapacity and ensure an annual output decline. This move will be the most direct way to achieve peak carbon emissions and carbon neutrality.
Thus, the pace of growth of China’s china steel coil production is expected to slow down as the government’s strict containment measures are likely to keep China’s steel output growth under check in the second half of this year. Moreover, the expected production reduction plan will very likely support China’s domestic prices to remain firm in the H2 of 2021.

3. Steel Export Rebates Removal

On April 28, China’s Ministry of Finance and State Taxation Administration jointly issued an announcement to remove the export tax rebate for most steel products from May 1, 2021. Prior to this adjustment, there were 166 kinds of steel products enjoying export tax rebates, while after this adjustment, the 13% VAT rebates of 146 steel products will no longer apply when exporting. Steel products with tax rebates to be retained after May 1 include cold-rolled alloy steel sheets, electro-galvanized sheets, hot-dip galvanized sheets, tin-plated sheets, galvanized sheets, and electrical steel. Among all hot-rolled products, only steel rails, wheels, and axles can still enjoy export tax rebates.

As China promises to substantially reduce carbon emissions from steel mills in the next few years, the cancellation of export tax rebates is conducive to reducing China's crude steel production and encourage Chinese steelmakers to give more priority to the local market.

However, as most cold-rolled and galvanized products still enjoy export tax rebates, the export volume has witnessed a significant increase in recent weeks. In order to balance steel prices and production, the Chinese government is very likely to further cancel export tax rebates for those products, and impose export tariffs for hot-rolled products, which will further support the further rise in China's steel export prices.

Relying on the government’s measures to curb soaring prices, while stabilizing the market in the short term, will be hard to solve fundamental issues in the long run. Since the global market is in a stage where over-expansion of the money supply leads to increasing inflation. However, directly control the prices will only have an immediate effect, while from a long-term perspective, despite great efforts by the government side, cooling global steel prices requires a joint international effort.

In terms of reducing crude steel output, there have been many rumours in the market, such as the implementation of production restrictions throughout the country and the reduction of crude steel output volume by 20 million tons or 25 million tons in the second half of the year. Notwithstanding rumours, the market generally expects that crude steel production will be strictly controlled, which will strongly support market sentiment and prices in the coming months.

The export tax rebate for cold-rolled and galvanized products is likely to be cancelled after mid-July because since the cancellation of the tax rebate for hot-rolled products, the market has abnormally seen cold-rolled prices lower than hot-rolled products. On this basis, the expected measures may lead to an increase in steel prices, and achieve the goal of reducing steel exports by the government’s efforts. Regarding the rumours of continuing to impose tariffs on hot-rolled products, it is unlikely to be implemented in the short term.

Summary

Collectively, all of these policy changes will benefit China in the short and long term, and we believe that

The current slight decline in steel prices is only a short-term trend, mainly due to the recent government's administrative control of steel prices, the hot and rainy weather from June to August- the traditional off-season in China’s steel market.

From the perspective of supply and demand, domestic and foreign demand is still strong driven by the gradual recovery of the global economy.

At the same time, the output on the supply side will be affected by the production reduction target and export tax rebate policies, which will eventually lead to a gradual rise in steel export prices in the second half of the year, and even record new highs.

ABOUT CUMIC

CUMIC Steel Limited has been serving the global market for over 15 years, with extensive experience in steel solutions for various sectors. With the vision to “Build the future with steel+”, we strive to build partnerships made of steel to connect the supply chain and be the agile partner who can give customers expert advice.

In a world where sourcing steel is becoming more and more complicated under new uncertainties, CUMIC offers professional market intelligence services to aid your steel sourcing.

We offer free steel market analysis reports to our customers on a regular basis.

We have constant updates of industry news, data, and market insights on our social media channels like our LinkedIn and Facebook page.

Interested? Now download our latest FREE market intelligence report, Global Steel Market Outlook 2021, written by our professional team. For more information, contact us today via cumic@cumic.com.

If you need any kinds of carbon steel, please contact us, as a professional china stainless steel supplier, CUMIC is willing to offer you high quality products.

Zinc-Aluminum-Magnesium Coated Steel Plates – the Frontier of Anti-corrosion in Steels(2022年10月31日)

cumic — 2022-10-31T17:15:15+0900

https://www.cumic.com/zincaluminummagnesium-coated-steel-plates-the-frontier-of-anticorrosion-in-steels.html

1. WHAT IS ZINC-ALUMINUM-MAGNESIUM COATED STEEL?
Zinc-aluminum-magnesium coated steel, also known as ZAM coated steel, is an innovative steel finish with superior corrosion resistance. Initially, pure zinc alloys were mostly used to enhance the corrosion resistance of metal surfaces. With the continuous innovation of steelmaking technology, corrosion-resistant coated steels such as zinc-aluminum alloys and ZAM alloys continue to emerge on the market, which greatly enhances the corrosion resistance of steel surfaces.

2. COMPOSITION AND CLASSIFICATION OF ZINC-ALUMINUM-MAGNESIUM COATED STEELS

Zinc-aluminum-magnesium coated steel refers to a coated steel in which a certain amount of Al, Mg is added to the existing hot-dip galvanized coating or a certain amount of Mg is added to the hot-dip galvanized coating. It has high performance of corrosion resistance and high trimming protection.

A generalized analysis of magnesium-containing coated steel for commercial applications shows that the Mg content in most coatings is less than or equal to 3%. Hence, according to the aluminum content of the coatings, the zinc-aluminum-magnesium coatings can be divided into the following types:

l Low-aluminum Zn-Al-Mg coating, with aluminum content of 1-3.5%: This coating is formed by adding a certain amount of aluminum-magnesium and other elements on the basis of hot-dip galvanizing. The coated steel plate has also been tested in a color coating unit, and low-aluminum zinc-aluminum-magnesium plate has also been successfully developed. The coating is an upgraded version of the corrosion resistance of the hot-dip pure zinc coating, which is referred as BZM coated steel plate and its color coated plate.

l Medium-aluminum Zn-Al-Mg coating, with aluminum content of 5~11%.

l High-aluminum Zn-Al-Mg coating, with aluminum content of 55%. The coating is formed by adding certain magnesium and other elements on the basis of hot-dip aluminum-zinc. The coated steel plate has also been tested in a color coating unit, and the color coated steel plate with a high-aluminum zinc-aluminum-magnesium substrate has been successfully developed. This coating is an upgraded version of the corrosion resistance of the hot-dip aluminum-zinc coating, which is referred to as BAM coated steel sheet and its color coated sheet.

3. COMPARISON BETWEEN GALVANIZED (GI), ALUZINC, AND ZN-AL-MG COATED STEELS?

Pure zinc coating is a kind of economical anti-corrosion coating, with a zinc content of not less than 99%. It can be further divided into galvanized steel with or without spangles, and these two types have almost the same level of corrosion resistance. However, if the steel plates need to be sprayed or painted later, those without spangles will have a more pleasant aesthetic. The thick zinc layer products usually have spangles (for example, the weight of the zinc layer is 275g/m2 on both sides).

Aluminum-zinc coating is an alloy metal, in which the aluminum content is 55%, and the zinc content is 43.5%, with remaining component being silicon. Generally, the corrosion resistance of aluminum-zinc coating is 2-6 times better than pure zinc coating of the same weight. The surface of the galvanized steel coil can be modified by production technology to produce beautiful and uniform spangles, which can be directly used for exterior building or household appliances.

But there are also some disadvantages of aluminum-zinc coating:

First, the welding performance of the aluminum-zinc coating is not as good as that of pure zinc, so the welding process should be minimized in use;

Second, the protection of the aluminum-zinc coating on the cut of the steel plate is less than that of the pure zinc coating, and far less than that of the zinc-aluminum-magnesium coating.

The zinc-aluminum-magnesium coating has an excellent all-rounder performance. Its manufacturing cost is only slightly higher than Aluzinc coating, while its corrosion resistance is much better. In addition, it also has good performance to protect the cut of the steel plate, and the welding performance is equivalent to galvanized steels.

Currently, application cases of the Zn-Al-Mg steel plates are emerging in the market. At the same time, Zn-Al-Mg color-coated steel plate are also being mass-produced and widely used.

In the future, as the requirements for materials in construction and various industries gradually increase, zinc-aluminum-magnesium coated steel sheets may gradually replace the aluminum-zinc steel sheets in the market.

At CUMIC, we are constantly adapting our products and services to your processes for maximum efficiencies in your best interest. If you'd like to know more about Zn-Al-Mg coated steels, don't hesitate to leave a message below or reach us via marketing@cumic.com!

About CUMIC

We are a team of professional, passionate, and committed steel experts who dedicate our continuing efforts to the best experience of all steel users and everyone in the supply chain. As a reliable steel trader, we offer technical support, 3rd party quality control services, steel marketing intelligence information, and many other value-added services to you. Get in touch today via cumic@cumic.com, and keep updated by following us on LinkedIn and Facebook.

Now the price of zinc flat bar is affordable, if you have needs, please contact us.

Why Exactly Do Steel Prices Change?(2022年10月31日)

cumic — 2022-10-31T17:14:45+0900

https://www.cumic.com/why-exactly-do-steel-prices-change.html

Steel prices have been on a steady upward trend since 2020, and especially in recent weeks when many steel products have been reaching record highs. Prices are skyrocketing, and more and more steel users are wondering: When is this going to change? How do I know if this is the right time to buy steel? This all leads to the fundamental question: What exactly are driving the constant changes in steel? In this article, we've analyzed the 5 most important factors in the complicated world of steel pricing.

1. SUPPLY AND DEMAND
In the commodity market, everything follows the principles of economics - supply and demand.

As the manufacturing industry booms, steel prices go up because more companies are in demand for steel under a limited supply. While the demand weakens, the balance of power shifts towards the steel users, and prices drop consequently.

Another factor that we need to take into consideration, apart from the current supply and demand, is the market sentiment, which is how the investors also look at forecasts and trends to decide how much steel should cost.

2.COST OF RAW MATERIALS
Currently, iron ore and scrap metal are the 2 major raw materials used in the steelmaking process. That is to say, the production cost of steel is directly related to the prices and availability of iron ore and scrap. For example, for the past few months, the continuously surging prices of iron ore from Australia (the largest supplier of iron ore in global trade) have been directly reflected on recent spike in the steel market.

Meanwhile, the availability of scrap metal used for recycled steel production can also affect costs. If more buildings are being demolished than there are being constructed, the chances are there is greater availability of raw materials and so steel sections costs may go down.

3. MACROECONOMIC POLICIES
Policy is an extremely powerful factor that drives steel supply price changes. In the global steel market, policies relating to import & export, monetary policies that affect currency, and policies about sustainability matter the most.

For example, interest rates are greatly associated with the strength of a currency. Higher rates mean higher borrowing costs, which usually make a currency more attractive to investors seeking higher yields than in other currencies. So basically, higher rates domestically (or expectations of a rate increase) normally indicate a stronger currency, leading to declines in steel prices.

As for sustainability policies, one of the most talked about concepts, “carbon neutrality”, has been driving the steel prices upwards. By now there have been over 110 countries committing to achieving net 0 carbon emissions by mid-century, and China’s recently announced plan to achieve carbon neutral by 2060 means a significant shift in the steel industry including short-term output reduction, causing steel prices in China to rise further. (See this post for more information on carbon neutrality’s impact.)

4. ANTI-DUMPING AND TARIFFS
The rising steel prices in the global market is much related to the increasingly strict anti-dumping laws and regulations, with more tariffs on more and more steel grades.

Back in a few years, China was largely responsible for a great proportion of the world's steel production, and the cost of steel was reduced globally. However, more and more countries like the US and the EU have since imposed anti-dumping duties to try to shift steel dependence away from China and back to local production.

In response to the new anti-dumping laws and tariffs, China decreased its steel production and thus created a lower supply worldwide than there is a demand. Naturally, China's steel export to overseas also declined. Many steel producers worldwide are still behind in supplying sufficient steel to keep up with the market demands, which is why the lag in supply is driving up the price of steel.

Another example showcasing how much tariffs can impact steel price and the economy as a whole, is Trump’s increasing tariff on steel products in the US imported from all countries.

The US has always been far from being self-sufficient in steel, and imports over 30% of the amounts consumed. Given the industrial importance of steel, tariffs imposed on imports significantly increased the production costs for American manufacturers across a variety of industry sectors. Soon after the increased tariffs were announced, the price of steel in the US jumped to levels far above most countries around the world — a 50% premium over European prices and 80% over Chinese prices. This no doubt caused increasing risks and pressure on the American economy.

5.SEASON AND WEATHER
The price of steel products experience changes during different times of a year. After all, it's a lot harder and therefore costly to get steel into cities that are deep in snow, or steel components out of a country that is celebrating a seasonal holiday.

Seasonal factors result in steel pricing fluctuations mainly in the following 2 ways:

Seasonal weather's impact on shipping. Long rainy days, heavy snow, and all sorts of extreme weather events can seriously influence the shipping of steel products in a negative way.

Different seasonal demand for steel. For example, high temperature will no doubt slow down the process of construction in buildings and infrastructure, thus reducing the need for steel materials.

ABOUT CUMIC
As a steel trading company, CUMIC Steel Limited has been serving the global market for over 15 years, with extensive experience in steel solutions for various sectors. With the vision to “Build the future with steel+”, we strive to build partnerships made of steel to connect the supply chain and be the agile partner who can give customers expert advice.

In a world where steel prices are becoming complicated and unstable, CUMIC offers professional market intelligence services to aid your steel sourcing.

We offer free steel market analysis reports to our customers on a regular basis.

We have constant updates of industry news, data, and market insights on our social media channels like our LinkedIn and Facebook page.

Interested? Now download our latest FREE market intelligence report, Global Steel Market Outlook 2021, written by our professional team. For more information, contact us today via cumic@cumic.com.

VIDA Hotel & Residences Dubai Mall Project(2022年10月31日)

cumic — 2022-10-31T17:14:14+0900

https://www.cumic.com/vida-hotel-residences-dubai-mall-project/

VIDA Hotel & Residences Dubai Mall Project
Product:
Hot Rolled Steel Plate - S460NL
Quantity: 81.64 MT
Location: United Arab Emirates

Project Story
In August 2017, Emaar Hospitality Group, the hospitality and leisure subsidiary of Emaar Properties, announced its 7th hotel project in UAE under Vida Hotels and Resorts, along with Harbour Point, a new waterfront lifestyle project. CUMIC had supplied 81.64 MT of hot rolled steel plates in grade: S460NL manufactured by Wuyang Iron & Steel Co., Ltd for the construction of this high-end mall hotel. Complicated Z type sections for the structure of the underground column (covered with cement upon erection) were built from the structural steel plates supplied by CUMIC.

Located in the central area of Dubai, The Vida Dubai Mall will be a two-tower development featuring serviced and branded apartments with 195 hotel rooms, 614 serviced residences, and a direct link to The Dubai Mall. Bordering the vibrant Sheikh Mohammed bin Rashid Boulevard and its myriad of restaurants and cafés, this prime location will allow residents to fully embrace the ‘live, work, play’ lifestyle with uninterrupted views of Burj Khalifa and The Dubai Fountain. We are honored to supply quality steel solutions for the construction of The Vida Dubai Mall, the perfect upscale addition to Downtown Dubai's sparkling landscape.

As a steel company china, we will do our best to meet all the needs of customers.

Steel in Tool and Molding(2022年10月31日)

cumic — 2022-10-31T17:13:47+0900

https://www.cumic.com/tool-and-molding-industry-using-steel.html

Tool Steel for Sale
Each plastic part is produced in a mold made of tool steel.

In 2017, tools and machinery accounted for about 15% of global steel consumption.

Approximately 30% of tool steels are used in plastic mold manufacturing.

The steel used in tools and for molding is a group of steels with a range of other metal add-ins that make these steels harder, more durable, and much more resistant to abrasion and warping, and able to withstand extreme temperatures. Depending on different manufacturing applications, tool steels with different prices are divided into three families - cold work steel, hot work steel, and plastics mold steel. Various types of drawing, pressing, punching, and forming dies, gauges, collets rely on cold work steels steel for its inexpensive and durability. The door of your car, for instance, is likely made by a press using cold work steel. Applications like die casting, forging, extrusion, and hot stamping are built with hot work tool steel, while plastic mold steel shaped almost every plastic part in our surroundings, from bottles, casings for TVs, telephones.

The use in tooling and molding market is important as all its production of these tools usually requires strong wear resistance - an essential criterion for the durability of the mold. Tool steels for sale are the choice material to fabricate these molds because of the inherent qualities of steel coupled with tool steel's own ability to maintain resistance to abrasion. It allows the durability of the mold to perform as intended(without breaking or wearing down), which enables hundreds of thousands of moldings operations over its lifetime compared to other metals or steel alternatives. With high hardness and resistance to heat, wear, and corrosion, millions of parts can be shaped multiple times without material depreciation.

CUMIC, one of the best mold steel suppliers, has served the tooling and molding sectors for most of our history. We are able to supply hot work tool steel, cold work tool steel, plastic mold steel, as well as high-speed steel, applicable for tooling and molding industry including but not limited to die casting, gauges, jigs, plastic molds and also cutting tools, etc. We strive to provide diverse materials with the highest attention paid to exceeding the industry's most stringent standards with a focus on resistance to wear, abrasion, and impact steel products for your needs.

CUMIC is committed to providing customers with reliable and innovative solutions for the tool and molding sector using our abundant special steel know-how. Our extensive range of product portfolio and value-added services enable us to meet the varied and particular demands of customers in the market.

Global Service Network(2022年10月31日)

cumic — 2022-10-31T17:13:13+0900

https://www.cumic.com/service-network.html

Global Service Network
At CUMIC, we are committed to providing our customers with customized and integrated china steel services tailored to their needs. We have already provided high-quality solutions to over 1000 customers across more than 60 countries and regions. CUMIC is rapidly growing from a professional trading company to a global service provider of the international supply chain.

CUMIC is your trusted global steels supplier. We keep our promises on the concluded transactions and provide reliable services for customers from a wide range of countries and regions in the Middle East, Asia, Africa, Europe, Oceania, and North and South America. In order to better serve our customers, we have established sales offices in Dubai, Houston, Vietnam, Spain, South Korea, and Chile to ensure that we provide quality services and are within easy reach of our customers no matter where we are. We will continue to provide quality services to customers all over the world and strive to be better and more professional to reward customers who choose to cooperate with us.

Wire Rod Steel(2022年10月31日)

cumic — 2022-10-31T17:12:42+0900

https://www.cumic.com/products/wire-rod-steel/

OVERVIEW OF WIRE ROD STEEL
China steel wire rod refers to a type of semi-finished long steel china product manufactured by hot rolling billets on continuously rolling mills. It is characterized by having a round cross-section, and is wound up in coils. Wire rods exhibit a vast commodity range variety, and they can be categorized into several types including mild steel rod, steel wire rod coils with medium or high carbon content, welding rod, and special carbon steel rod in regard to their chemical composition.

FEATURES OF WIRE ROD STEEL

1
Hot rolled wire rod is a versatile product that has a huge variety of applications, such as aviation, engineering, and reinforcing concrete structures, etc.

PARAMETER OF WIRE ROD STEEL
StandardJIS / ASTM / GB
GradesSAE1006 / SAE1008 / SAE1010 / SAE1012 / SAE1084
SWRCH8A / SWRCH22A / SWRCH10K / SWRCH45K
65Mn, 60Si2Mn, 60Si2MnA etc.
H08A, H08C/08E, H10MnSi, H08MnSiVTiA, H10MnSiNiA, H10Mn2A, H13CrMoA
SWRH42A-SWRH82A, SWRH82B
SAE1045-SAE1080
Q195, Q215, Q235
Size15.0mm—16.0mm
Size25.5mm—40.0mm

As one of wire rod suppliers, we can offer kinds of carbon steel wire rod for sale, anything you need, please leave us a message.

UPN/UPE Steel(2022年10月31日)

cumic — 2022-10-31T17:11:51+0900

https://www.cumic.com/products/upn-upe-steel/

Overview of UPN Steel Profile
UPN or UNP is the short form that represents standardized stainless steel channels. UPN is often used in multiple kinds of industrial applications such as construction and machinery. Stainless steel channels are distinguished by excellent design flexibility and by fast and cost-effective construction (through the possibility of prefabrication in the steel production). Stainless steel channels are mostly produced from scrap and are recyclable. UPE is the short form for stainless steel channels with parallel flanges, which provide an interesting addition to the UPN structural steel series. The UPE profiles are thinner than UPN 100 profile, but they have slightly wider flanges.

FEATURES OF UPN/UPE STEEL

1
Weight saving: The use of UPE channels can lead to weight saving up to 30%.

2
UPE/UPN steel channels are highly durable, making them extremely useful in engineering, machinery, and construction.

PARAMETER OF UPN / UPE STEEL
GradesS235JR / S275JR / S355JR
Size 1UPN 50/ UPN 80 / UPN 100 / UPN 120 / UPN 140 / UPN 160 / UPN 180 / UPN 200
Size 2UPE 50 / UPE 80 / UPE 100 / UPE 120 / UPE 140 / UPE160 / UPE180 / UPE 200

If you want to know more kinds of c channel angle, please visit our website.

As one of steel companies china, we can offer kinds of reltaed products for sale, if you have needs, please contact us.

Coated Steels: Applications and Emerging Trends(2022年)

cumic — 2022-08-24T15:38:39+0900

https://www.cumic.com/overview-of-coated-steel-sheets-market.html

1.MOST COMMON APPLICATIONS OF COATED STEEL PRODUCTS
Common uses of coated steel products can be found in the construction, infrastructure, automobile, and engineering fields, especially in the construction and infrastructure sectors. For example, the average life span of coated steel roofs is extended to 15 to 20 years.

2.GLOBAL COATED STEEL MARKET SHARE
The global coated steel market is dominated by powder coated carbon steel, contributing 81% of the global market share.

New investments in metal and organic coated steels are mainly in Asia, followed by the United States. International Steel (ISL) announced the expansion of its production capacity in Pakistan, with 350,000 tons of hot-dip galvanized steel and 50,000 tons of color-coated steel, respectively.

Northeast Asia is the largest consumer of coated steel. Due to its high infrastructure and construction expenditures, as well as its huge automobile and manufacturing industries, it accounts for approximately 44% of global coated steel consumption.

Due to the limitation of the end-use, the development trend of organic coating or PPGI market is different from that of the metal coating. Due to strong demand in the construction sector, Europe has become the largest market for coated steel.

3.EMERGING TRENDS OF COATED STEELS
As the most important end-user of coated steel, steel for the construction sector is playing a vital role in boosting consumption due to the acceleration of urbanization and population growth.

According to statistics from the United Nations Department of Economic and Social Affairs in 2018, about 55% of the world's population lives in urban areas. With this trend, the urban population is expected to reach 68% by 2050, with the largest growth in Asia and Africa.

About CUMIC

Challenges in Pickling and Cold Rolling of High-Strength Steels(2022年)

cumic — 2022-08-24T15:38:12+0900

https://www.cumic.com/pickling-and-cold-rolling-of-highstrength-steels.html

1.CHALLENGES IN HIGH-STRENGTH STEEL PICKLING
The high-strength steel, especially ultra-high-strength hot-rolled steel, is more sensitive to temperature due to the thickness and characteristics of its surface oxide scale. In addition, the difficulty of stretching and straightening elongation to meet the requirements, these have led to some problems in pickling process in steel.

High specific strength steel also encounters welding challenges, mainly due to its low formability, which may cause edge cracks, and may even lead to difficulties in trimming and chipping.

In addition, the high content of alloying elements in high tensile alloy steel may also reduce the purity and magnetic properties of iron oxide powder on its surface.

2. CHALLENGES IN HIGH-STRENGTH STEEL COLD ROLLING
First of all, due to the high alloy content may increase the difficulty of welding high-strength steel, which means that the weld is more likely to crack or even break.

Secondly, due to its high strength, large rolling force, and fast hardening, this may also cause overloading of the rolling mill. As a result, the amount of rolling deformation has to be reduced and the rolling speed needs to be slowed down. Moreover, high strength alloy steel is prone to slip, fracture, poor deformation, and even breakage during the steel cold rolling process.

Third, due to the large range of mechanical properties and thickness specifications of high specific strength steel, the thickness of full hard materials also fluctuates greatly. In view of this, in the cold rolling process, excessive rolling force will cause severe roll bending, large cross-sectional convexity, severe edge drop, roll burst, and even roll breakage of full hard materials.

About CUMIC

High Strength Steel Applications and Types(2022年)

cumic — 2022-08-24T15:37:46+0900

https://www.cumic.com/applications-and-types-of-high-strength-steel-plates.html

Ⅰ. HIGH TENSILE STEEL USES
High strength alloy steel is mainly used for structural applications and can be produced with or without the addition of small amounts of microalloying elements. Under N and N+T heat treatment conditions, higher comprehensive mechanical properties are obtained.

Typical High Strength Steel Applications Include:
Car body structure

Large ships and bridges

Power station equipment

Boiler pressure vessel

Lifting equipment

Mining machine

High Strength Steel Example
For example, Q460 is a type of HSLA automobile steel with higher comprehensive mechanical properties under N, N+T, QT conditions compared with mild steel, in which aluminum is added for deoxidation. The quality grades Q460C, Q460D, and Q460E increase the toughness of steel, making it suitable for various large-scale engineering structures and light structures that require high strength and large loads.

Ⅱ. TYPES OF STEEL USED IN AUTOMOTIVE INDUSTRY
a. High Strength Interstitial-free Steels (IF steels)
High-strength IF steels belong to the product family of conventional high-strength steels by adding different kinds of solid-solution-strengthening alloys such as P, Mn, Si, and proper rolling process control. The high-strength interstitial free steel properties feature the best formability and stamping performance of conventional high-strength steels, making it very suitable for complex-shaped automotive steel parts that have high requirements for deep drawing suitability and strength.

b. High Strength Bake-hardening Steels (BH Steels)
Bake Hardenable (BH) steel grades are conventional high-strength steels with baking hardening effects, suitable for car exposed panels. BH steels exhibit an increase in yield strength after room-temperature stamping followed by bake hardening processing through a thermal cycle comparable to the time-temperature profile used in paint baking, which is commonly seen in automotive painting processes.

c. Phosphorus-Containing Steel
Phosphorus-containing steel uses the solid solution strengthening element phosphorus to increase the strength of the steel plate so that it can be applied to some automobile stamping parts with more complicated shapes.

d. Ultra-Low Carbon Phosphorus-Containing Steels
Ultra-low carbon high-strength phosphorous steels are favored for their deep drawability, formability, and toughness. Solid solution strengthening alloys such as P, Mn, and Si ensure their strength.

e. Isotropic Steels ((I-Steels)
Isotropic steels are low-carbon low-alloyed steel, mainly used for automobile outer panels, and have been commercialized in Europe. The steel product categories are divided into cold-rolled steels, electro-galvanized steel, and hot-dip galvanized and hot-dip galvanized alloyed products, which are mainly used in European series models, while Japanese cars are rarely used.

f. High-strength Low Alloy Steels (HSLA Steels)
High strength low alloy steel, commonly known as HSLA steels, are produced by adding a small number of microalloying elements like Cb, Ti, Mo, V, etc., which offer excellent strength and weldability to it. The main mechanisms include grain refinement, precipitation strengthening, solid solution strengthening, and even phase-change strengthening.

High Strength Steel: Basics and Uses in Automotive Industry(2022年)

cumic — 2022-08-24T15:37:20+0900

https://www.cumic.com/high-strength-steel-basics-and-uses-in-automotive-industry.html

1.WHAT IS HIGH STRENGTH STEEL?

High specific strength steel generally refers to a type of steel that contains different alloying elements such as chromium, manganese, silicon, molybdenum, nickel, and vanadium to improve its hardness, wear-resistance and tensile strength.

In the equation, high tensile alloy steel is the maximum stress that a material can withstand when it is stretched or pulled before it breaks. In ductile materials, the ultimate tensile strength may be higher, while in brittle materials, the ultimate tensile strength is close to the yield point.

In addition, high-strength wear resistant special steel is also known for its resistance to atmospheric corrosion, where materials degrade by exposure to pollutants in the air.

1.HIGH STRENGTH STEEL IN AUTOMOTIVE INDUSTRY

For most vehicles, 60% of the total weight comes from high strength steel plates. High strength steel sheet plays a vital role in reducing body weight, enabling automotive engineers to design automotive parts that are both strong and lightweight, while maintaining the other advantages of high tensile steel sheet to improve passenger safety and vehicle performance.

Therefore, the demand for high strength steel sheet has increased substantially in recent years and has become the top priority of today's automotive industry.

Compared with low-carbon steel, high strength low alloy steel is favored due to higher tensile strength, making it widely suitable for many applications requiring strength and durability-from airplanes to trains, buses to trucks, and even some tallest skyscrapers in the world！

High-Strength Low-Alloy Steels in China - Development and Applications(2022年)

cumic — 2022-08-24T15:36:55+0900

https://www.cumic.com/high-strength-low-alloy-steel-china.html

High Strength Steel Applications

Part 1 A Brief History of China's HSLA Steel

As a type of china low alloy steel, the origin of china high strength low-alloy steel (HSLA steel) can be traced back to the 1950s. Ever since then, China's high strength low alloy steel has witnessed tremendous progress from import to independent R&D, approaching the cutting-edge technology of foreign origins.

From China's 6th Five-Year Plan to the 9th Five-Year Plan, there are four breakthroughs as follows:

To produce HSLA steel in accordance with advanced international standards;

To import internationally advanced HSLA steel grades;

To upgrade Chinese traditional high strength low alloy steel grades based on foreign research results

Keep up with the latest technological developments while designed Chinese high strength low alloy steel grades independently

During the period of transformation and development, China began to independently research and develop HSLA steel grades, and microalloying elements based on Nb, V, and Ti have been widely used in high strength low-alloy steels. Since then, the desired properties of modern HSLA steels have surfaced.

Part 2 Common HSLA Steel Applications

As one of high strength low alloy steel suppliers, we have types of related products for sale, if you have needs, please contact us.

Steel in Energy(2022年05月24日)

cumic — 2022-05-24T18:09:36+0900

https://www.cumic.com/energy-industry-using-steel.html

The energy used to manufacture a tonne of steel has been reduced by 61% in the past 50 years.

Recycling steel can save energy equivalent to power at least a 60-watt light bulb for nearly 4 years.

Energy conservation also remarkably reduces the generation of carbon dioxide.

Our modern civilization is built on energy. Whether based on fossil fuels, nuclear technology, or forms of renewable energy, steel plays an indispensable role in energy production and transmission, as well as improving energy efficiency.

Special steel energy is an enormous, diverse and extremely demanding market as all its production must be very safe and reliable under extremely severe temperature and pressure conditions. Steel is a choice solution favored for its excellent corrosion resistance, precise tolerances, as well as stable performance, especially when the requirements for mechanical strength are particularly critical. Although many other metals are used in this field, steel is undoubtedly the most common and popular material in the energy market.

When thinking about energy, most tend to think of oil and natural gas extraction. Steels play a critical role in the extraction, production as well as the distribution of energy, equipment of oil and natural gases extraction, pipelines, and storage tank are made of a significant amount of steel because it can withstand harsh and abrasive environments, much of the machinery that is used to do the drilling is dependent on heavy machinery, and on parts that are frequently in contact with harsh and abrasive environments.

Additionally, steels also play a decisive role in the further expansion of renewable energy. Almost every part of the onshore and off-shore wind turbines are built with steel; from foundation to the gears and tower, steel plays a significant role in improving strength for more efficient wind turbines. Due to the strength provided by steel, higher and more efficient wind turbines can be built.

Together with our customers, as a steel products supplier, CUMIC provides a variety of high-quality steel types, such as hot rolled steel coils, hot rolled steel sheets, boiler tubes, steel plates, and various special steels, suitable for the oil and gas as well as wind energy industries, including but not limited to boilers and pressure vessels, pipelines, wind tower structures, wind power plants, hydroelectric power stations, nuclear power plants, oil well casings, etc.

CUMIC is committed to providing customers with reliable and innovative solutions for the energy sector. In addition to meeting the mechanical strength conditions, our materials can also achieve excellent material performance under extreme temperature differences. Our extensive range of china steel products and value-added services enable us to meet the requirements of customers in the market.

Zinc-Aluminum-Magnesium Steel: Basics and History(2022年05月24日)

cumic — 2022-05-24T18:09:09+0900

https://www.cumic.com/development-history-of-zincaluminummagnesium-alloy-coated-steel.html

Zinc aluminum magnesium coated steel is a new type of coating product, and it is also an area where many steel mills in China have stepped in recent years.

1. WHAT IS ZINC-ALUMINUM-MAGNESIUM COATED STEEL?
According to the definition of European standard EN10346-2015, zinc aluminium magnesium coating is a ternary alloy coating whose main component is zinc, and the content of aluminum and magnesium is between 1.5-8% (where the magnesium content is not less than 0.2%).

Compared with traditional coatings such as hot-dip galvanizing, galvanized aluminum and zinc-iron alloy, zinc-aluminum-magnesium coated steels boast better corrosion resistance.

1. As the zinc-aluminum-magnesium alloy coated steel sheet is relatively thin and dense, it is not easy to peel off the coating;

2. Corrosion products will flow and wrap the incision, so the protection performance of the incision and defect is better;

3. It also has good corrosion resistance in some corrosive environments (such as animal husbandry and coastal areas);

4. It can replace some of the less demanding stainless steels, or application scenarios such as galvanizing after processing, which can simplify the user's processing procedures.

2. THE HISTORY OF ZINC-ALUMINUM-MAGNESIUM COATED STEEL
The industry generally believes that the first commercial production and promotion of zinc-aluminum-magnesium zinc coated steel sheets were the two Japanese steel mills, Nisshin Steel and Nippon Steel. (After the merger of Nippon Steel and Nisshin Steel, it is now renamed as Nippon Steel)

In fact, as early as the 1960s and 1970s, American steel companies had already started the development of zinc-aluminum-magnesium-coated steel but did not carry out commercial production.

Then, in the 1990s, Nisshin Steel and Nippon Steel had done a lot of work on the research and development of zinc-aluminum-magnesium coated steels, made significant progress, and started commercial production of zinc-aluminum-magnesium alloy coated steel sheets.

Note: It is said that at the beginning it aimed to get a product with performance and price between stainless steel and hot-dip galvanized.

In recent years, Chinese steel mills have also followed up, and major companies have also begun to put zinc-aluminum-magnesium coated steel into production.

About CUMIC

As one of china metal suppliers, we are a team of professional, passionate, and committed steel experts who dedicate our continuing efforts to the best experience of all steel users and everyone in the supply chain. We offer technical support, 3rd party quality control services, steel marketing intelligence information, and many other value-added services to you. Get in touch today via cumic@cumic.com, and keep updated by following us on LinkedIn and Facebook.

Corrosion in Coated Steel Plate – Why it Happens and How to Avoid it(2022年05月24日)

cumic — 2022-05-24T18:08:42+0900

https://www.cumic.com/corrosion-in-coated-steel-plate-why-it-happens-and-how-to-avoid-it.html

The corrosion of metal materials can usually be classified into the following types:

I. Dry corrosion and wet corrosion.

II. Chemical corrosion, electrochemical corrosion, and physical corrosion.

III. Pitting corrosion and stress corrosion fracture.

1. FACTORS AFFECTING THE CORROSION RESISTANCE OF COATED STEEL SHEETS
The corrosion resistance of color coated steel sheet is usually expressed by the degree of corrosion damage such as loss of gloss, discoloration, chalking, fine cracking, cracking, blistering, and rust spots.

There are many factors that can affect the corrosion resistance of coated steel sheets, which include the type of substrate of the coated carbon steel plate, the type of paint, the number and thickness of coating layers, the service environment of the coated steel plate, and the machining, transportation, and storage in the application of the coated steel plate.

Solely based on the analysis of the principle of coating characteristics of the coated corrosion plate, the fundamental factors that determine the corrosion resistance of coated steel sheets are the structural characteristics of the coating and the corrosion resistance of the substrate. The protectiveness of the coating under the atmospheric corrosion environment is mainly determined by the corrosion resistance or the aging resistance of the coating.

The corrosion rate of the coated steel sheet is not only related to the physical and chemical properties of the organic coating, but also dependent on the gas, liquid and ion resistance of the organic coating. The corrosion reaction of steel in contact with water and air is the result of local battery action, which is the so-called electrochemical corrosion. The organic coating has the function of isolating steel from the external corrosive environment.

2. HOW TO CONTROL THE CORROSION OF COATED STEEL SHEETS

When selecting metal materials, it is necessary to choose those that are resistant to atmospheric corrosion;

When designing the structure, it is necessary to avoid cracks, grooves and other parts that are easy to accumulate water and cause corrosion stress cracking;

Change the composition and add corrosion inhibitor to inhibit the corrosion process;

Make anti-rust treatment before packaging, and keep dry and clean during storage. Take use of surface protective covering coating.

In order to improve the corrosion resistance and special surface properties of ordinary steel sheets, various color coated steel sheets have been developed on the basis of ordinary steel sheets.

The coating of steel plate can be roughly divided into three types: organic coating, inorganic coating and composite coating. Among them, the development of organic coating steel plate is the fastest. Organic coatings can be formulated into various colors and patterns, so they are usually called color coated steel plates. The original plate of color coated steel plate usually adopts hot-rolled steel plate and galvanized steel plate. The organic coating is polyvinyl chloride, polyacrylic acid resin, epoxy resin, alkyd resin and so on. The combination of coating and steel plate can be divided into film lamination method and paint coating method.

As one of special stainless steel suppliers, we have types of related products for sale, if you have needs, please contact us.

Steel in Construction(2022年05月24日)

cumic — 2022-05-24T18:08:11+0900

https://www.cumic.com/construction-industry-using-steel.html

Carbon Steel for Sale

Over 50% of the world steel demand comes from construction, one of the most significant industries regarding steel application.

Steel buildings are self-supporting: Steel buildings barely require additional pillars or beams to support the structure.

Steel is flexible in combination with other materials.

Steel is earthquake resistant due to its ductility.

CUMIC provides a wide range of quality steel types such as hot rolled coils, hot rolled steel buildings, and hot-rolled plates for construction, applicable for construction material including but not limited to general structural steel, welded-steel structures, bridge steel, weather resistance of high-performance bridge steel, high-rise building structure, and high strength steel.

As one of flat steel suppliers, we have types of flat carbon steel for sale, anything you need, please contact us.

Bulb Flat Shipbuilding Project(2022年05月24日)

cumic — 2022-05-24T18:07:41+0900

https://www.cumic.com/bulb-flat-shipbuilding-project/

Bulb Flat Shipbuilding Project
Product:
NV/AH36 Bulb Flat Steel (DNV Approval)

Quantity:
110 MT

Location:
Singapore

As a flat steel products company, we are pleased to announce that 110 tons of AH36 hot-rolled flat bulbs produced by Longteng Special Steel have been delivered to customers in Singapore in time. The material will be used to build shipbuilding structures.

AH36 bulb flats for shipbuilding are types of special section steels suitable for ship and bridge construction. For large ships and regular ships, marine bulb flats were generally chosen for the main hull in the design, using the same sickness and material with the panels connected to them are adopted as the aggregate.

Thanks to the rounded edge design, bulb flats are excellent stiffeners with a longer life span compared to angle steels in terms of corrosion-resistance, because there is no need for edge grinding before painting, saving time and money during manufacturing.

Now the price of flat steel sheet is affordable, if you have needs, please contact us.

Company Profile(2022年05月24日)

cumic — 2022-05-24T18:07:11+0900

https://www.cumic.com/about-cumic/

Company Profile
As a steel sections company, CUMIC Steel Limited was established in 2006 with a vision to provide top quality china steel products and solutions for the global market; ever since then, we have always been dedicated to fulfilling that vision with persistent professionalism, determination, innovation, and superb service. With a management team that has vast industry experience and expertise, as well as various professional and enterprising teams, we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

If you want to buy high quality china steel, please choose our company.

3 Policy Changes that May Affect How You Buy Steel from China(2022年05月24日)

cumic — 2022-05-24T18:06:43+0900

https://www.cumic.com/3-Policy-Changes-Steel-China.html

1. Chinese Govt Efforts to Curb Soaring Steel Prices

2. Crude Steel Production Cuts

Thus, the pace of growth of China’s steel production is expected to slow down as the government’s strict containment measures are likely to keep China’s steel output growth under check in the second half of this year. Moreover, the expected production reduction plan will very likely support China’s domestic prices to remain firm in the H2 of 2021.

3. Steel Export Rebates Removal

China’s Steel Price Forecast for H2 2021

Summary

Collectively, all of these policy changes will benefit China in the short and long term, and we believe that

From the perspective of supply and demand, domestic and foreign demand is still strong driven by the gradual recovery of the global economy.

ABOUT CUMIC

In a world where sourcing steel is becoming more and more complicated under new uncertainties, CUMIC offers professional market intelligence services to aid your steel sourcing.

We offer free steel market analysis reports to our customers on a regular basis.

We have constant updates of industry news, data, and market insights on our social media channels like our LinkedIn and Facebook page.

Interested? Now download our latest FREE market intelligence report, Global Steel Market Outlook 2021, written by our professional team. For more information, contact us today via cumic@cumic.com.

Now the china cold rolled steel prices are affordable, if you want to buy high quality china steel coil, please contact us.

More types of stainless steel products china, please visit our website.

5 Key Qualities You Should Look for in Steel Suppliers(2022年)

cumic — 2022-01-13T15:25:55+0900

https://www.cumic.com/culture-values/

When sourcing steel for your business, the bottom line often comes down to how to find a quality product at the right price and at the right time. Sourcing is far more intricate than the mentioned. Selecting a reliable and top steel supplier can be a game-changer for your business. In a nutshell, there are 5 qualities you should look for when searching for a steel supplier.

1. Global Experience + Local Expertise

Global sourcing has unique advantages that cannot be replaced, specifically when it comes to steel. As shown in this latest steel market outlook report, China accounts for over 50% of the world's steel production. Many steel users import their supplies from China, India, and other key steel-producing countries for maximized benefits. Getting steel supplies overseas is an increasingly popular trend, especially for those who need consistent and large volumes.

That being said, it's not easy to find global suppliers who can also meet your needs from a local scope.

Firstly, the most common issue, the language barrier, comes to mind. Also, overseas companies may not be that well versed in the local market. That's why it's important to select a supplier that has local team members with in-depth knowledge about the market, preferably a local office.

CUMIC Steel, led by globally experienced management, has a culturally diverse sales team in multiple branch offices around the world. We have local offices in over 10 countries & regions including the U.S, Canada, UAE, South Africa, Thailand, Vietnam, Chile, Peru, Belgium, etc. with experienced traders. With the help of these local experts, the language & cultural barrier can be minimized to zero.

2. A Strong Supply Network of Manufacturers

This is a must for any business that requires a consistent supply of quality steel.

There are countless manufacturers out there, making endless types and grades of steels for various applications. However, it doesn't happen often when a supplier can integrate all these manufacturers' resources and provide an all-in-one package readily available for you.

For example, take a look at the 50 top steel-producing companies according to Worldsteel. CUMIC has long-term cooperation with 9 out of the 10 top steel mills in the world. In addition, our supply network expands to over 200 mills worldwide, including many exclusive agreements with leading manufacturers.

In addition, as an extremely versatile material, steel serves different functions in countless industries, and every steel using scenario may have its own specific demand for the material. Sometimes, standardized production and processing might not be enough for your business, and that's when customization comes in handy. Apart from exclusive agreements with top quality mills, we can also customize orders tailored to your needs, and help you get just the right type of material needed.

3. Technical Support and Market Intelligence

A mediocre steel supplier provides the basic: a steel grade that meets a minimum standard. A great steel supplier is way more than that. Although there are many reputable suppliers in the marketplace, few can offer technical advice or even application knowledge for the challenges many manufacturers face today.

What you should look for instead, is more than just a supplier, because you'll find life incredibly easier when your supplier can consult with you to address downstream operations and final application performance. A trusted steel supplier is prepared to have in-depth discussions with you to provide various suggestions and help you make the right decision for materials and technical services, rather than suggest the easiest or cheapest option.

With the right type of steel supplier, you not only find a good supplier, but also a consultant that can provide much more than the product itself to you.

At CUMIC, we have team members well versed in different types of products and downstream applications. Many come from academic and professional backgrounds of metallurgy, machinery, and have decades of experience working for top steel mills. What you'll find here, is a group of experts who know what they're selling.

Apart from the technical side, CUMIC even has professional market intelligence services.

l We offer steel market analysis reports to our customers on a regular basis.

l We have constant updates of industry news, data, and market insights on our social media channels like our LinkedIn and Facebook page.

For example, you can download our latest market intelligence report, Global Steel Market Outlook 2021, written by our professional team.

4. Demonstration in Consistent Quality

A commitment to quality and continuous improvement is an essential quality you should be looking for in a partnership. Your steel supplier should demonstrate a commitment to providing you with consistent, quality products that exceed your expectations. It's easier said than done, so look for their credentials to make sure they're legit.

For example, they should maintain a quality management system in conformance with their ISO 9001:2015 certification (view our certification here)

Information pertaining to customer experiences (like a customer feedback report, or the type of past projects they have participated in should be readily available.

CUMIC's commitment to quality is also based on how we handle quality control:

In fact, over 55% of our orders have undergone strict inspection by globally known inspection organizations such as SGS, Bureau Veritas Group, and Intertek, with who we also signed a strategic alliance.

Over 1000 third-party inspection reports are provided per year.

We closely supervise the production process of mills with sampling inspection.

5. Long-term Strategies

Anyone that works in raw material sourcing knows, it takes A LOT of work to select a new supplier, and it's even more of a nuisance to switch steel suppliers.

For the procurement of industrial goods, consistency is key, so look for a steel supplier that has a clear long-term strategy.

You want a steel supplier who thinks big and commits to providing long-term solutions, rather than someone who's in the business for some quick cash without consistency.

When it comes to long-term strategies, you can check out your prospective supplier's company history to see how they've evolved, and also see their visions & missions to get a taste of their company culture as well as strategic plans.

More than a Supplier: Look for an All-in-one steel solution provider.

A great steel supplier has the ability to provide a complete solution to the problem and work with you to identify the manufacturing challenges you have. These suppliers not only provide quality products, but also aid you in the manufacturing process and can help you to select the right material for the job.

CUMIC Steel has been serving the global market for over 15 years, with extensive experience in steel solutions for various sectors. With the vision to “Build the future with steel+”, we strive to build partnerships made of steel to connect the supply chain and be the agile partner who can give customers expert advice.

The pace of innovation is rising in this changing industrial landscape, and we have never stopped leveling up our services to exceed your expectations. Get in touch today to open up new horizons through dialogue, to let us be your trusted partner!

CUMIC Steel Limited is a professional china steel supplier, we provide quality steel solutions, cold rolled steel coils, etc. we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

Anti-Corrosion Method for Steel(2022年)

cumic — 2022-01-13T15:25:23+0900

https://www.cumic.com/products/flat-carbon-steel/

Steel is a material with a certain shape, size and performance made from steel ingots, billets or steel through pressure processing. Most of the steel processing is through pressure processing, so that the processed steel produces plastic deformation. In today's increasingly poor air quality, steel exposed to the outdoors for an extended time is prone to corrosion. In this blog post, we will introduce several steel corrosion protection methods.

Generally, when manufacturing steel, manufacturers will consider adding corrosion coating for steel. If the coating is dense, it can prevent the penetration of gases and corrosive liquids, and can well prevent the accumulation of static electricity in the coating. Its high conductivity can prevent the physical and chemical reactions of acid-base corrosive media. In addition, the coating has high hardness, impact resistance, smoothness and plumpness. Its temperature resistance range is -45℃-150℃. It has a high thermal shock coefficient and good adhesion. Therefore, it is suitable for coating in various acid-base gases and liquids, solvents, intermediates and partial concentrations of salts to resist corrosion and protect organisms from corrosion for a long time.

The bottom layer of the coating is a galvanized layer, and the surface layer is a stainless-steel layer, forming a stepped coating, which is applied to hydraulic steel structures. After a lot of research and testing, economical and satisfactory anti-corrosion effects of steel structures have been achieved. The principle is to use some form of heat source to heat the metal spraying material to form molten particles. Under the action of power, it will impact and sink to the surface of the substrate at a certain speed to form a metal coating with certain characteristics. The coating has strong anti-corrosion and acid-base resistance, so it can meet the anti-corrosion requirements of different occasions. The steel structure, wall surface and industrial equipment surface of the acid-base workshop can be coated with paint in addition to the anti-corrosion on the ground of the main workshop to achieve good anti-corrosion effect.

Another effective anti-corrosion method is metal thermal spraying. It uses a certain form of heat source to heat the steel spray material to form molten particles. Under the high impact, it impacts and sinks to the surface of the substrate at a certain speed to form a metal coating with certain characteristics. It uses thermal spraying technology to treat the surface of base materials such as hydraulic steel structural parts to obtain a corrosion-resistant and wear-resistant metal protective coating, thereby improving the corrosion resistance and wear resistance of hydraulic steel structural parts.

In conclusion, these are some of the most popular and effective major anti-corrosion methods for steel. If you find this information useful, share our article on social media and don't forget to follow CUMIC Steel on LinkedIn and Facebook for more future updates!

CUMIC Steel Limited is a professional steel products supplier, we provide quality steel solutions, hot rolled flat steel, flat rolled carbon steel, flat carbon steel, flat steel sheet, etc. we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

4 Facts You didn't Know about Rolling Mills(2022年)

cumic — 2022-01-13T15:24:58+0900

https://www.cumic.com/products/coated-steel.html

The rolling mill is one of the core equipment of the steel industry. Whether it is cutting-edge new weapons such as aircraft carriers and nuclear submarines, mass infrastructures such as nuclear power plants, giant bridges, and reservoir gates, or even consumer goods such as cars, refrigerators, and washing machines in people’s daily lives, steel plates are everywhere, and they wouldn't exist without the high-quality steel made from rolling mills.

Fact 1: It was Leonardo da Vinci that first designed the original sketch of a rolling mill in human history.

The invention of the rolling is very likely attributed to Leonardo da Vinci. One of his drawings back in 1480 is the earliest sketch of a rolling mill that can be found.

It even shows the need for larger diameter backup rolls to support longer, smaller diameter work rolls.

Da Vinci's design for Rolling-Mill with backing rolls, late 15th Century. by Leonardo, da Vinci at Science and Society Picture Library

Fact 2: The production of heavy plates requires a roll surface width of more than 2800mm.

Hot-rolled plates play an irreplaceable role as the building blocks for our world. The heated steel billet is rolled by the upper and lower rollers in the rolling mill, and finally rolled into a steel plate. In terms of the width of the roll surface, the rolling mill can be divided into 8 standards: 1800mm, 2300mm, 2800mm, 3300mm, 3800mm, 4300mm, 4800mm, and 5300mm. Heavy plate rolling usually requires a mill with a roll surface width of more than 2800mm.

Fact 3: The maximum width of a rolling mill to date is 5500mm, which is used in megaprojects like the construction of an aircraft carrier.

Heavy plate is the backbone of our industrial world. When it comes to giant ships, large-diameter oil and gas pipes, weapon armor, offshore drilling platforms, and nuclear power stations, large dam gates, and other megaprojects, large-size steel plates are essential.

Take the "Nimitz"-class aircraft carrier as an example. Its flight deck area is 18,200 square meters, composed of 50 mm thick HSLA-80 steel plate and composite armor materials; it must withstand the strong impact and flames of fighter aircraft taking off and landing. Burning, but also have enough bulletproof capability; therefore, large-size steel plates must be used to reduce welds and increase strength. In the shipbuilding industry, especially in the field of military shipbuilding, large single-weight wide and heavy plates are a must. In such scenarios, it will most likely require rolling mills of width over 5000mm.

China's first-ever aircraft carrier, built with heavy steel plates made from Angang's 5500mm rolling mill

Fact 4: China has the largest number of HRP rolling mills wider than 5000mm.

In fact, before 2003, China didn't even have any mills that produce plates wider than 4300mm. But in the last 17 years, China's high-quality steel mills such as Baogang, Angang, Shagang, etc. made a series of major breakthroughs. In 2009, Angang produced the widest heavy plate rolling mill to date, at 5500mm.

As an integrated steel trading solution provider, we, CUMIC Steel Limited, have long-term cooperation with over 200 mills worldwide. In particular, we are able to provide all-in-one solutions including products from these top mills for your industrial needs.

CUMIC Steel Limited is a professional steel products suppliers, we provide quality steel solutions, hot rolled carbon steel plate, powder coated carbon steel, coated steel, coated steel products, etc. we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

For Appliance Manufacturers: 3 Steel Solutions to Beat your Competitors in 2021(2022年)

cumic — 2022-01-13T15:24:25+0900

https://www.linkedin.com/posts/cumicsteel_steel-steelindustry-qualitycontrol-activity-6676025776468557824-6SB1
https://www.cumic.com/

Home appliance manufacturing isn't easy. It's a constantly changing industry full of challenges and competition. Home appliance manufacturers, do you relate to these challenges?

Challenges That You're Probably Facing

· Affordable Durability: If there is only one thing that hasn't changed in this ever-changing industry, it is the need for durability (and at a low cost, too!).

· Visual Differentiation: Stainless steel, matte black, compact appliances... Fashion trends change every other day, and you've got to deliver the latest style before the consumers even know it

· Colour Consistency: I'm pretty sure nobody likes seeing inconsistent colours in their newly decorated kitchen.

We feel your pain, but the good news is that you can tackle these issues with a little help early on the supply chain.

Now let's see how the right selection of steel solutions can make your home appliance manufacturing business easier!

How the Choice of STEEL can be Your Game Changer

On average, 75% of the weight of a typical household appliance comes from steel.

Solution - Cold Rolled Steel, Hot-dipped Galvanized Steel, and Alu-zinc Steel

They also have great aesthetic value, making them ideal for making products that are used to attract consumer attention.

For affordability, you can always get the optimized steel solution, which goes through 3 stages of cost-reducing measures thanks to our vast service network of over 200 steel mills worldwide.

Challenge - Visual Differentiation

Solution - Enamelled Steel

Enamelled steel, now frequently used in home appliances, is a traditional material for modern living, a touch of luxury added to homes of a lighter and more environmentally conscious generation.

It is a product that meets very modern criteria of longevity, aesthetic qualities, hygiene and respect for the environment.

Enameled steel can be coloured in the mass in an unlimited range of colours, with a broad range of surface textures.

It is a product of state-of-the-art technology. While not that many steel mills have fully mastered the manufacturing process, the ones that do are the business partners of CUMIC.

In fact, 9 out of the top 10 steel-producing companies in the world are CUMIC's long-term suppliers, according to worldsteel.

Challenge - Colour Consistency

Solution - Prepainted Galvanized Steel (aka PPGI or Galvalume)

Now, imagine the damage that inconsistent colours can do to your brand:

Why not control it from the first step, raw materials?

By the time you get the colour coated steel, an integrated supply chain has worked as one to ensure that all colours are matching and everything is in sync with the same standards:

Before production: CUMIC communicates with you to specify all requirements including colours, which will be entered into a strict agreement with the mill.

During production: CUMIC supervises the production process at the mills and conducts sampling inspections regularly for 100% matching colours.

For shipment: CUMIC engages globally known inspection organizations like SGS, BV, and Intertek to carry out strict inspection and recheck on all products again.

In fact, at CUMIC, over 1000 third-party inspection reports are provided, and over 55% of our orders have gone through such strict inspections.

From carefully crafted colour coated steels made in top-tier steel mills, to your customers' kitchens, the colours stay the same, and so will your brand image.

Want to Learn More?

Not sure what grades are the best for your products? Need help with optimizing steel solutions for your home appliance business? We've got you covered!

CUMIC Steel Limited, active in the world of integrated steel solutions for over 15 years, is specialised in supplying home appliance steels. We know steel, and we know appliances.

For more information, don't hesitate to contact us via marketing@cumic.com, and don't forget to follow us on LinkedIn and Facebook!

CUMIC Steel Limited is a professional china steel supplier, we provide quality steel solutions, hot cold rolled steel, etc. we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

4 Must-Read Tips to Stop Cut Edge Cracking in Steels(2022年)

cumic — 2022-01-13T15:22:56+0900

https://www.twi-global.com/technical-knowledge/job-knowledge/defects-hydrogen-cracks-in-steels-identification-045#:~:text=Preheating to avoid hydrogen cracking,a short time after welding.

Although most regular steel products aren't as likely to crack, cut edge cracking is a common phenomenon for steels of thicker gauges or grades exhibiting a substantially high carbon content, such as wear-resistant steels and high strength steels.

These steels are essential materials for many industries like construction and mining, where durability and strength is a must. As annoying as cut edge cracking can be, there are some useful ways to prevent it, and we're sharing some of the most effective tips on how to eliminate cut edge cracking!

But first, you might ask:

WHAT IS CUT EDGE CRACKING, AND WHY DOES IT HAPPEN?
When thermal cutting on steels of thicker gauges, cracks can form from the cut edges. Cut edge cracking is caused by similar reasons as cold cracking from welding, including:

hydrogen content cracking

cut edge residual stresses

a high carbon equivalent

Cut edge cracking is also known as delayed cracking, as it takes from 48 hours to several weeks after the cutting for the cracks to show. It is a phenomenon closely related to hydrogen cracking in welds under thermal cutting methods.

The likelihood of cut edge cracks to occur on your steel products will increase with the hardness of the steels and the thickness of the steel plates.

WHAT CAN I DO TO AVOID IT?
1. Preheating
Preheating before cutting is no doubt the best way to eliminate the risk of cut edge cracking. Preheating is most commonly applied prior to oxy-fuel cutting. It can be carried out by utilizing burner lances, electric heating mats, or by heating in a furnace.

The preheating temperature depends on the steel grade and plate thickness. For detailed information, we at CUMIC provide professional help for your inquiries. The required temperature should be measured on the opposite side from that at which heating takes place.

Also, don't forget to maintain a low-temperature gradient across the plate cross-section in order to avoid local overheating at the contact area of the heat source!

2. Low Cutting Speed
If preheating cannot be carried out, maintaining a low cutting speed can be the best alternative option. Although slightly less consistent than preheating when it comes to preventing cut edge cracking, low cutting speed is still one of the most useful methods.

If preheating is not employed, the maximum permissible cutting speed depends on the steel grade and the plate thickness. Therefore, we highly recommend a combination of preheating and low cutting speed for reducing further the susceptibility to cut edge cracking.

3. Slow Cooling

Regardless of whether or not the previous two methods are employed, a slow cooling rate can help reduce the risk of cut edge cracking. Slow cooling can be achieved if the parts are stacked together while still warm from the cutting process, and are covered with an insulating blanket. Allow the parts to cool slowly down to room temperature.

4. Post-heating
Another way to avoid cut edge cracking is to heat up the parts immediately after cutting. This will prolong the time at temperature to allow the hydrogen to escape from the steel plates. The residual stresses at the cut edge can also potentially decrease to a certain extent.

When applying the post-heating method, the soaking temperature should be the same as the preheating temperature introduced before, and the soaking time should be at least 5 minutes per mm of plate thickness.

For post-heating, multiple methods including Burner lances, electric heating mats, or heat treatment in a furnace can be used.

WANT TO LEARN MORE?
If you're using wear-resistant steels, high strength steels, or other thick steel materials with high carbon equivalent for your business, taking the right measures to prevent cracking can be a huge cost reduction.

CUMIC Steel Limited, led by an internationally experienced team of industry experts, is specialized in trading wear-resistant and high strength steel. With long-term cooperations with over 200 steel mills and multiple globally renowned third-party quality control organizations for over a decade, CUMIC can be your trusted supplier.

CUMIC Steel Limited is a professional quality steel company, we provide quality steel solutions, flat rolled carbon steel, etc. we are able to provide excellent, consistent, and innovative services to an extensive range of customers.

A Conversation with Leung Kao - the Secrets of Becoming a Steel Trading Expert(2021年08月31日)

cumic — 2021-08-26T15:52:54+0900

https://www.cumic.com/careers/

At the 2021 CUMIC annual gala, Leung Kao, the Central and South America regional director, was honored the 10-year contribution award for his decade-long dedication to CUMIC. Born in 1973, Leung used to work in media and was once a senior publisher of a well-known steel industry news media before he joined CUMIC at the age of 36. Witnessing the tremendous growth and achievement of CUMIC in the past few years, Leung also integrates his career deeply into the development of CUMIC.

Today, we sat down with Leung and had a delightful talk about his past, present, and future at CUMIC. We are thrilled to share his life and experience in CUMIC with you.

Why steel trade?

I joined CUMIC in 2010, when I had just turned 36. Before that, my career experienced a gradual pivot from media to the steel industry. At one of the major global steel industry news media, I climbed the corporate ladder from a content editor, to chief editor, then a senior publisher. That was also kind of a progression from mostly writing and editing to getting involved in a lot more advertising sales, business briefings, and media events. These tasks required direct communications with clients, and that's pretty much how I established relationships with a lot of these clients and accumulated my own customer base, which was exactly what I needed to get into steel trade. In general, I think my prior experience equipped me with sufficient skills to do sales and serve customers.

Why joined CUMIC?

Actually, I was referred by a former coworker who personally knew one of the executives. At the time CUMIC only had about 20 employees, but I immediately thought to myself, this looks very promising, mostly for CUMIC’s strong connections with a large number of steel mills.

The team dynamics also looked great and everyone’s got their own unique competencies and skills coming from different backgrounds. At the time, joining just seemed like the right choice because of how my experiences and aspirations fit the company’s vision and values.

Coming here was a huge transition that I was excited for, not only in terms of how I worked but it also changed how I lived. This isn't your typical 9-5 office job, but requires one to be active and constantly traveling, which can be both exciting and challenging. Actually, when I was 34, I first wanted to go study abroad, but I couldn't, for the concerns of my family, so instead I got into the global steel trade. For me this was an alternative path to experience the life I wanted, so yes, being able to often travel overseas for work was a huge plus for me. As soon as I joined, I found myself really enjoying this job. I was always the first to arrive in the morning and the last one to leave the office, out of genuine interest and passion.

What factors contribute to the success of CUMIC?

This question reminds me of an old Chinese saying that goes “right time, right place, with right people,” and this is exactly what I experienced at CUMIC.

CUMIC was founded in 2006 when China turned to a net exporter from a net importer of steel for the first time in history. Thanks to this golden opportunity, the steel produced in China’s steel mills has been starting to win the world’s increasing acceptance. CUMIC benefits a lot from the rapid development of China’s steel industry. So in a way, the market trend then really boost our initial growth.

But that is not to say we were only built on opportunities and the right timing. Say, in the Central & South American market, CUMIC has had dozens of decade-long cooperative customers, and had a thorough development over the past decade. CUMIC will make every effort to know their needs, and is confident to offer the best terms based on our stable and reliable supplies. In a word, China’s resources plus CUMIC’s brand and service jointly contributed to the success of CUMIC in the global steel market. Also, for my region, Central & South America, we couldn’t have done what we achieved without the support of our local friends there, who play an irreplaceable role in our success, so I'm always grateful for their partnership.

Our CEO James is a natural-born leader that’s very articulate and charismatic. He’s a great communicator and motivator when difficulties occur, like when the industry took a hard hit in the first half of 2020, he would often talk about this movie called “Going Vertical”. It’s a very inspiring sports film about the controversial victory of the Soviet national basketball team over the U.S. Olympic team. In the movie, the Soviet team ended America’s 63 years winning streak in the final 3 seconds, and James would often use this plot as an inspiration to win our own battle against the pandemic, what we could do to turn the situation around when everything seems hard, and in the end, we actually did it.

This takes more than courage and big talks, but the real work, expertise, and strategies to win. At the end of 2020, we even exceeded our own objectives set before the pandemic. If the initial growth of CUMIC in 2006 was about seizing the opportunity at the right time, our success in 2020 is a perfect testament to how long we’ve come and what enables us to evolve for the past 15 years.

Why recommend working in CUMIC?

In CUMIC, the company grows in step with your personal career. You feel your reward, whether financially or in terms of the sense of achievement, and these deserve your efforts. CUMIC not only has a clear strategy, but also knows how to resolve it into several goals and achieve them step by step. The management team of CUMIC encourages everyone to find their own direction, to explore the perfect match between their own capabilities and the characteristics of the company. They give you a comfortable environment and enough opportunities to achieve self-actualization.

Moreover, one of the strongest assets of CUMIC is its corporate culture. That is, a family-like working atmosphere. Here I met the people I like and the interpersonal relationships I enjoy.

This reminds me of one of my most distinctive memories of the past 10 years here, when I was on a business trip to Chile and Colombia with Amy (our executive director of global sales), and we got into this heated argument about how to truly build great partnerships with customers because we had very different views on steel trading and the business. We debated for the whole trip, but it never got in the way of our performances there, nor it affects our relationship. In fact, I think that incident even further strengthened our bond as teammates because it shows how we both put everything we had into this job, like everyone else here, who simply wishes to achieve excellence using their expertise, skills, and is genuinely open to different ideas, only for this one goal – to create value for our organization.

How to keep a work-life balance?

That is one of the reasons why I like CUMIC. CUMIC gives enough freedom to its employees. It’s a place where it’s easy for everyone to balance for themselves. From my perspective, I have the time hit the gym every day to stay energetic because I wish I could continuously work for CUMIC for another 30 years.

Any suggestions for young people working in CUMIC?

Do your best with what you’re supposed to do, but never be satisfied with that, and always go beyond. Knowing how to perform a task isn’t enough, and it’s figuring out how it really works that matters the most. Know the hows, but also further know the whys. Never cover up your strategic laziness with your tactical diligence. It’s also important to stay an open and curious mind, to never stop learning about new things.

Any suggestions for our candidates?

In this challenging world, if you want to seize the opportunity brought by China’s development and want to join a good China-based company, CUMIC is unquestionably a good choice because CUMIC can help you achieve your best.

At the moment, the world is recovering from the pandemic, and a rising need for commodities is definitely expected. There are plenty of new opportunities for the next few years, so it would be a great time to join us in this promising industry now.

Do you want to work with Leung and many other successful members of our team? If you're interested in beginning a journey of excellence in the global steel trading industry, check out our job openings athttps://www.cumic.com/careers/ and send your CV to hr@cumic.com.

CUMIC is a professional steel products supplier, we provide flat carbon steel, hot rolled steel coil, steel products china and etc. Want to know more? Please contact us.

5 Key Qualities You Should Look for in Steel Suppliers(2021年08月30日)

cumic — 2021-08-26T15:52:15+0900

https://www.cumic.com/5-key-qualities-you-should-look-for-in-steel-suppl.html

1. Global Experience + Local Expertise

That being said, it's not easy to find global suppliers who can also meet your needs from a local scope.

2. A Strong Supply Network of Manufacturers

This is a must for any business that requires a consistent supply of quality steel.
There are countless manufacturers out there, making endless types and grades of steels for various applications. However, it doesn't happen often when a supplier can integrate all these manufacturers' resources and provide an all-in-one package readily available for you.

3. Technical Support and Market Intelligence
A mediocre steel supplier provides the basic: a steel grade that meets a minimum standard. A great steel supplier is way more than that. Although there are many reputable suppliers in the marketplace, few can offer technical advice or even application knowledge for the challenges many manufacturers face today.

With the right type of steel supplier, you not only find a good supplier, but also a consultant that can provide much more than the product itself to you.

Apart from the technical side, CUMIC even has professional market intelligence services.

We offer steel market analysis reports to our customers on a regular basis.

We have constant updates of industry news, data, and market insights on our social media channels like our LinkedIn and Facebook page.

For example, you can download our latest market intelligence report, Global Steel Market Outlook 2021, written by our professional team.

4. Demonstration in Consistent Quality
A commitment to quality and continuous improvement is an essential quality you should be looking for in a partnership. Your steel supplier should demonstrate a commitment to providing you with consistent, quality products that exceed your expectations. It's easier said than done, so look for their credentials to make sure they're legit.

For example, they should maintain a quality management system in conformance with their ISO 9001:2015 certification (view our certification here)

Information pertaining to customer experiences (like a customer feedback report, or the type of past projects they have participated in should be readily available.

CUMIC's commitment to quality is also based on how we handle quality control:
In fact, over 55% of our orders have undergone strict inspection by globally known inspection organizations such as SGS, Bureau Veritas Group, and Intertek, with who we also signed a strategic alliance.

Over 1000 third-party inspection reports are provided per year.

We closely supervise the production process of mills with sampling inspection.

5. Long-term Strategies
Anyone that works in raw material sourcing knows, it takes A LOT of work to select a new supplier, and it's even more of a nuisance to switch steel suppliers.

For the procurement of industrial goods, consistency is key, so look for a steel supplier that has a clear long-term strategy.

You want a steel supplier who thinks big and commits to providing long-term solutions, rather than someone who's in the business for some quick cash without consistency.

More than a Supplier: Look for an All-in-one steel solution provider.

CUMIC is a professional steel products company, we provide flat carbon steel, hot rolled steel coil, steel products for sale and etc. Want to know more? Please contact us.

Zinc-Aluminum-Magnesium Coated Steel Plates – the Frontier of Anti-corrosion in Steels(2021年08月29日)

cumic — 2021-08-26T15:51:12+0900

https://www.cumic.com/products/pre-painted-galvanized-steel-coil/

2. COMPOSITION AND CLASSIFICATION OF ZINC-ALUMINUM-MAGNESIUM COATED STEELS
Zinc-aluminum-magnesium coated steel refers to a coated steel in which a certain amount of Al, Mg is added to the existing hot-dip galvanized coating or a certain amount of Mg is added to the hot-dip galvanized coating. It has high performance of corrosion resistance and high trimming protection.

l Medium-aluminum Zn-Al-Mg coating, with aluminum content of 5~11%.

3. COMPARISON BETWEEN GALVANIZED (GI), ALUZINC, AND ZN-AL-MG COATED STEELS?
Pure zinc coating is a kind of economical anti-corrosion coating, with a zinc content of not less than 99%. It can be further divided into galvanized steel with or without spangles, and these two types have almost the same level of corrosion resistance. However, if the steel plates need to be sprayed or painted later, those without spangles will have a more pleasant aesthetic. The thick zinc layer products usually have spangles (for example, the weight of the zinc layer is 275g/m2 on both sides).

But there are also some disadvantages of aluminum-zinc coating:

First, the welding performance of the aluminum-zinc coating is not as good as that of pure zinc, so the welding process should be minimized in use;

Second, the protection of the aluminum-zinc coating on the cut of the steel plate is less than that of the pure zinc coating, and far less than that of the zinc-aluminum-magnesium coating.

Currently, application cases of the Zn-Al-Mg steel plates are emerging in the market. At the same time, Zn-Al-Mg color-coated steel plate are also being mass-produced and widely used.

About CUMIC

CUMIC is a professional quality steel suppliers, we provide flat carbon steel, hot rolled steel coil and etc. Want to know more? Please contact us.

Corrosion in Coated Steel Plate – Why it Happens and How to Avoid it(2021年08月28日)

cumic — 2021-08-26T15:50:29+0900

https://www.cumic.com/products/pre-painted-galvanized-steel-coil/

The corrosion of metal materials can usually be classified into the following types:

I. Dry corrosion and wet corrosion.

II. Chemical corrosion, electrochemical corrosion, and physical corrosion.

III. Pitting corrosion and stress corrosion fracture.

2. HOW TO CONTROL THE CORROSION OF COATED STEEL SHEETS

Based on the above-mentioned metal corrosion mechanism, people have been looking for effective metal corrosion control methods. And after long-term practice, the following measures have been basically formed:
When selecting metal materials, it is necessary to choose those that are resistant to atmospheric corrosion;

When designing the structure, it is necessary to avoid cracks, grooves and other parts that are easy to accumulate water and cause corrosion stress cracking;

Change the composition and add corrosion inhibitor to inhibit the corrosion process;

Make anti-rust treatment before packaging, and keep dry and clean during storage. Take use of surface protective covering coating.

In order to improve the corrosion resistance and special surface properties of ordinary steel sheets, various color coated steel sheets have been developed on the basis of ordinary steel sheets.

CUMIC is a professional steel material company, we provide flat carbon steel, hot rolled steel floor plate and etc. Want to know more? Please contact us.