Stainless steel pipe Material: 304, 316, 321, 430 Specification: 15 mm - 159mm Material: National Standard: (American Standard), 1Cr18Ni9Ti, 0Cr18Ni10Ti (321), 0Cr18Ni9 (304), 00Cr18Ni10 (304L), 0Cr17Ni12Mo2 (316), 00Cr17Ni14Mo2 (316L), 0Cr25Ni20 (310S) Standard: GB/T14975-2002, GB/T14976-2002, GB/T13926-91, GB/T9948-88