Forged Steel Flanges ,Casting Steel Flanges : * ASME/ANSI B16.5 : WELDING NECK FLANGE, SLIP-ON FLANGE, BLIND FLANGE,HIGH HUB BLIND FLANGE, SOCKET WELD FLANGE.LAPJOINT FLANGE, THREADED FLANGE. RING TYPE JOINT FLANGE. Pressure Class : 150, 300, 400 , 600 , 900, 1500 , 2500 * ASME/ANSI B16.47 : WELDING NECK FLANGE, BLIND FLANGE. (SERIES A & B) Pressure Class : 75, 150, 300, 400 , 600 , 900 * ASME/ANSI B16.36 : (ORIFICE FLANGES) WELDING NECK FLANGE, SLIPON FLANGE, THREADED FLANGE. Pressure Class : 300, 400 , 600 , 900, 1500 , 2500 * ASTM/ANSI B16.48:( Figure-8 blanks) Pressure Class : 150, 300, 400 , 600 , 900,1500, 2500 * MSS SP44 : WELDING NECK FLANGE, BLIND FLANGE. Pressure Class :300, 400 , 600 , 900 * API 6A : WELDING NECK FLANGE, THREAD FLANGE,BLIND FLANGE. Pressure : 2000Psi, 3000Psi, 5000Psi, 10000Psi, 15000Psi, 20000Psi, 25000Psi Material: ASTM A105; ASTM A350, A694 F42/F46/F52/F60/F65 ASTM A182 F304/304L,F316/316L, F321, F310, ASTM A 182 F51/F53/F55 * Size:1/2"-48"