Standard:

ASTM A554,ASTM A312,ASTM A249,ASTM A790,ASTM A688, ASTM A269,ASTM A268, JIS G3463-2006,ASTM A651

Grade:

201,202,304,316,316L, 409L,430,410, 444,445J2,44660,S31803,S32750

Size Range:

OD:6.35mm-160mm or requested WT:0.15mm-3mm or requested

Certification:

 ISO9001,CE,Support third-party detection

Tolerance：

a) Outer Diameter:  +/- 0.2mm

b) Thickness: +/- 0.02mm

c) Length: +/- 5mm

Surface：

180G, 320G, Satin,400G, 600G ,2B,BA

Application：

 Power station, cooling tower, underfloor heating ,heat recovery system, especially high Chloride seawater heat exchanger.

Test：

Raw material checking, extended test, Hydraulic test, crystal rot test, Pneumatic test , Eddy Current test, TX-ray test. Tension test

Production equipment：

W+O forming, welding seam tracking, multi-cathode TIG welding, molten pool electromagnetic stirring technology, endoscope welding with monitoring, online welding with inside and outside rolling, online annealing, micron grade laser calipering, encoder-based high-precision sizing, internal polishing.