... Welding Neck Flange, Blind Flange, Socket Welding Flange, Flanges: Special Flanges, carbon flange, steel flange, forged flange; with good ... Lap Joint Flange(2) Flanges Standards: ANSI Flanges, BS flanges, DIN flanges, EN1092-1 Flanges(3) Material: Carbon steel flanges ASTM A105, ASTM A350 ... (UNS S31254) Alloy Steel flanges ASTM A182 F1, F5a, F9, F11, F12, F22, F91(4) Connection Type: Raised Face, Flat ...