A socket weld flange is a pipe fitting in which the pipe is installed into the recessed area of a valve, fitting or flange.
Materials:
Carbon Steel: ASTM A105, 20 #, Q235, 16Mn
Stainless Steel: ASTM A182 F304, 304L, F316, 316L
Alloy Steel: ASTM A182 F1, F9, F11, F91, A182F12, A182F11, 12Cr1MoV, A335P22
Sealing Surface:
Raised face (RF), uneven surface (MFM), tongue and groove face (TG), ring joint face (RJ)