... pipes,AISI201,202,304,304L,316.316L,409 etc stainless weld steel pipestrickly follow the ASTM A544,and othersFeacture1.Grade AISI201 ... ,mst and fence,sewerage,furnishing,machinery as well as liquid gas transport,construction,etc.3.Technique weld4.size:outside diameter 8 ... .Tolerance1)outsidediameter +-0.15mm2)Thickness +-10%of wall thickness stainless weld pipe