stainless steel pipe: 1)material:201,301,304,316 2)standard:ASTM A554 3)wall thickness:0.25--3mm 4)length:6m stainless steel ... pipe: Material:201,301,304,316 and so onStandard:ASTM A554Length:6m or according to customerWall Thickness:0 ... 2002 GB14976-2002,ect.Size:a) O.D.: 1/8" to 12"b) W.T.: 2mm to ... , boiler, heat exchanger, super heater Quality Stainless Steel Pipe