square steel tube

1.Size 15mm*15mm-300mm*500mm
2.W.T. 0.5mm-25mm
3.Length 1mm-12mm
4.Standard
DIN EN10025,DIN EN 10056,
ASTM A500,A1031
GB/T 3524,3274,1591
5.Material
Alloy steel:A691 P5,P9,P11,A335 P11,P12,etc
Carbon steel:A234 WPB,A515,A516,A671,API5L,etc
Stainless steel:A358 304,316,321,A321 TP304, TP316, TP321,etc
6.Application Mechanical & manufacture, steel structure,shipbuilding,bridging, automobile chassis
square steel tube