... :2B,BA,HL,NO.1,8K,etc SpecificationsStainless Steel Pipe: 1.Material:201,202,304,316L,430,etc 2 ... Diameter6mm--159mmThickness0.3mm - 3.0mmLength6m or as customers' request Tolerancea) Outer Diameter: +/- 0.2mmb) Thickness: +/- 0.02mmc) Length: +/- 5mmSurface180G, 320G ... , crystal rot test, heat treatment, NDT Chemical Composition of Material MaterialComposition201202304316430C≤0.15≤0.15≤0.08≤0.08 ...