Stainless Steel Square Pipes STANDARDS:ASTM/ASME,GB, DIN, JIS, T14975, ... T14975, etc. SPECIFICATION: O.D: 4/5"*4/5'' - 12"*12'' (inch) (20*20 - 300*300 mm) W.T: SCH5S, SCH10S, ... to be tailored as required.Stainless steel pipe Variety:square pipe,round pipe,rectangular pipe,embossed pipe,threaded pipe ... 2600mm, wall thickness from 0.25mm to 26.0mm Square tube: Side length from 10mm*10mm to 250mm*250mm, ...