Flanges Design:As Per ASME B16.5Material Standard:Carbon Steel: ASTM A105, LTCSAlloy Steel: A182 F5 / F9 / F11 / F12 / F22 / F51 / F91Stainless Steel: A182 F304/304L/304H, F316/316L/316H, F321, 316Ti SliP-On Flanges (Raised Face / Flate Face) SPECIFICATION:Size: 1/2″ to 48”Pressure Class: 150#, 300#Size: 1/2″ to 24″Pressure Class: 600#, 900#Size: 1/2″ to 6″Pressure Class: 1500#, 2500# Socket Weld Flanges (Raised Face / Flate Face) SPECIFICATION:Size: 1/2″ to 4”Pressure Class: 150#, 300#, 600#End Type : Socket Weld Weld-Neck Flanges (Raised Face / Flate Face) SPECIFICATION:Size: 1/2″ to 48”Pressure Class: 150#, 300#Size: 1/2″ to 24″Pressure Class: 600#, 900#Size: 1/2″ to 6″Pressure Class: 1500#, 2500# Blind Flanges (Raised Face / Flate Face) SPECIFICATION:Size: 1/2″ to 48”Pressure Class: 150#, 300#Size: 1/2″ to 24″Pressure Class: 600#, 900#Size: 1/2″ to 6″Pressure Class: 1500#, 2500# Threaded Flanges (Raised Face / Flate Face) SPECIFICATION:Size: 1/2″ to 12”Pressure Class: 150#, 300#, 600#End Type: Threaded(BSPP / BSPT / NPT/ API LP) Plate Flange SPECIFICATION:Size: 1/2″ to 48”Pressure Class: 150#, 300#