... 202 etc 3)OD:3-1016mm WT:0.3-30mm 4)Surface:2B,BA,NO.1,Mirror Stain StandardASTM A554, A249 ... A270Material Grade201: Ni 0.8%~1%202: Ni 3.5%~4.5%304: Ni 8%, Cr 18%316: Ni 10%, Cr ... TestSquash test, extended test, water pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material MaterialComposition201202304316430C≤0.15≤0 ... .510-14 Mo 2.0-3.0 4inch stainless steel pipe