18 inch welded stainless steel pipe 1.Material:201,304,316L,etc 2.OD:6mm-159mm Thickness:0.25-3.5mm 3.Surface ... :bright Best selling 18 inch welded stainless steel pipe 1. 18 inch welded stainless steel ... .5%),301(Ni 5%)304 (Ni 8%, Cr 18%),316 (Ni 10%, Cr 18%),316L (Ni10%~14%),430Outer Diameter6mm--159mmThickness0.3mm - 3 ...