ansi b16.5 socket welding flange 1.Material:304 304L 316 316L 321 and so on 2.Size:1/2"-24" 3.Standard:ANSI,JIS,DIN,BS,etc ansi b16.5 socket welding flange1.Material:304 304L 316 316L 321 and so on 2.Size:1/2"-24"3.Standard:ANSI,JIS,DIN,BS,etc1.Materials, Grades (stainless steel) Available:EN 10222-5(DIN17440) 1.4301, 1.4306(1.4307), 1.4401, 1.4404 and 1.4541, 1.4571etc.ASTM A182 F304, ASTM A182 ...