... flanges, DIN flanges, EN1092-1 Flanges(3) Material: Carbon steel flanges ASTM A105, ASTM A350 LF1, LF2 CL1/CL2, ... , F48, F50, F52, F56, F60, F65, F70 Stainless steel flanges ASTM A182 F304/304L, F316/316L, F316H, F310, F321F44 ... (UNS S31254) Alloy Steel flanges ASTM A182 F1, F5a, F9, F11, F12, F22 ... cases or as per your request ANSI B16.5 Stainless Steel Blind flange