ansi b16.5 socket welding flange 1.Material:304 304L ... Standard:ANSI,JIS,DIN,BS,etc ansi b16.5 socket welding flange1.Material:304 304L 316 316L 321 ... etc1.Materials, Grades (stainless steel) Available:EN 10222-5(DIN17440) 1.4301, 1.4306(1.4307), 1 ... 1) ANSI B16.5 (150LBS-2500LBS) Blind/ Slip-on/Welding Neck (SCH 5S-SCH XXS) /Socket weld/ Threaded/ ... us.Best RegardsMindy He ansi b16.5 socket welding flange