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http://www.sstubecn.com/stainless-steel-tubing/boiler-tubes.html

Product description
Boiler Tubes for sale Description
HUASHANG has the cold draw computing device which is 70 meters long, can produce fifty-three meters long for every pipe. With the advanced technological know-how from Korea and Japan, it makes the extra close dimension controls.

HUASHANG, as a boiler tube suppliers, has developed an exceptional bright annealing process, the heat treatment is performed in a so-called closed furnace. The heat treated substances is covered via an inter gas atmosphere, which guarantees the oxygen cant enter the furnace to contact with the materials, and react to form scale on or tarnish the materials, The surface end is clean, bright and precision even for the tube with greater than 24 meters.

To ensure the quality of each tube from Huashang, all tubes are done 100% PMI test, 100% hydraulic test, 100% inner cleaned by sponge, 100% Dimension test and 100% surface test. Type of tube: atraight tube and u-bend tube/ seamless tube & welded tube.

Boiler Tubes Sizes

OD: 6.35mm--44.5mm
WALL THICKNESS: 0.71mm--3.81mm
Length: MAX 53 meters or as U-BEND tubes

Boiler Tubes Materials
Austenitic Stainless Steel Boiler Tube:
TP304, TP304L, TP304H, TP304LN, TP316/TP316L, TP316H, TP316Ti, TP316LN, TP321, TP321H, TP317, TP317L, TP347, TP347H, TP310S, TP310H, TP904L, 254Mo.S30432, S31042, N08367

Duplex & Super Duplex Steel:
S31500, S32101, S32003, S32304, S31803, S32205, S32750, S32760

Nickel Alloy Steel:
N06600, N06601, N06625, N07718, N08800, N08825, N10276, N04400, N05500, N02200, N02201, N08028, N08810, N08811, N08020, N10624, N10629, N10675

Boiler Tubes Standard
ASTM A789, ASME SA789, EN10216-5, ASTM B163, ASTM B167, ASME SB163, ASME SB167, ASTM B668, ASME SB668, ASTM A269, ASME SB677, ASTM A213, ASME SA213, ASME SA269, ASMT A270, ASTM B622, ASTM B516