carbon steel ANSI flange 1) Standard:ANSI, DIN, EN1092-1, JIS, BS4504, UNI. 2) Type: WN, SO, ... PL, BL, THRD, LAP-JOINT, SW carbon steel ANSI flangeThe welding neck flange is normally referred to as the ... , F46, F52, F56, F60, F65, F70Stainless Steel,ASTM A 182, ANSI 304, 304L, 304H, 304LN, 309S, 309H, 309Cb, 309HCb, 310S, 310H ...