Stainless Steel Pipe: 1.Material:201,202,304,316L,430,etc 2. ... :0.25-3.5mm 3.Surface:Mirror,Satin/HL NameStainless Steel pipeStandardASTM A554, A249, A269 and A270, A312Material Grade201 ( Ni 0 ... test, water pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material MaterialComposition201202304316430C≤0.15≤0.15≤0.08≤0.08 ...