ansi b16.5 socket welding flange 1.Material:304 304L 316 316L 321 and ... Standard:ANSI,JIS,DIN,BS,etc ansi b16.5 socket welding flange1.Material:304 304L 316 316L 321 and so ... ASTM A182 F316L, ASTM SA/A 182 F316Ti, ASTM A182 F321 etc.SUS F304, SUS F304L, SUS F316, SUS F316L, ... SUS F321 etc2.Mainly Flange Standards Available:1) ANSI B16.5 (150LBS-2500LBS) Blind/ Slip-on/Welding Neck (SCH 5S ...