... )Grade: 304, 304L, 316, 316L, 321 2)Standards: GB, AISI/ASTM, JIS, BS, DIN Grade(UNS):304/304L;316/316L;321 ... (1/4" – 12.75") Wall Thickness:2mm-22mmStandards(Norm):ASTM A312, S312M, ASTM A213, ASTM A269,DIN17440,DIN17224,DIN17458ApplicationChemical and petrochemical industry, Oil and ...