Stainless Steel Pipe: 1.Material:201,202,304,316L,430,etc 2. ... Thickness:0.25-3.5mm 3.Surface:Mirror,Satin/HL Stainless Steel Pipe: 1.Material:201,202,304,316L,430,etc 2.OD ... pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material MaterialComposition201202304316430C≤0.15≤0.15≤0.08≤0.08 ... produced after orderValidityValid time is 3 days for price usually. stainless steel pipe