Stainless Steel Pipe/bar 1)Grade: 304, 304L, 316, 316L, 321 2)Standards: GB, AISI/ASTM, JIS, BS, DIN Grade(UNS):304/304L; 316/316L; 321; 310SOutside Dia:6 -325mm(1/4" – 12.75")Wall Thickness:2mm-30mmStandards(Norm):ASTM A312, S312M, ASTM A213, ASTM A269,DIN17440,DIN17224,DIN17458ApplicationChemical and petrochemical industry, Oil and gas applications, Mechanical and plant engineering and ...