Socket welding fittings are a type of pipe fittings, which are machined pipe connectors forged from stainless steel round bars or ingots.

The connection type is Socket Welding-SW, where the steel pipe is inserted into the socket and焊接. The main manufacturing standards are ANSI/ASME B16.11, HG/T 21634, MSS SP-83, MSS SP 79, and GB/T 14383-2008.

The types of stainless steel socket welding fittings include 45° elbows, 90° elbows, tees, crosses, 45° reducing tees, double socket ferrules, single socket ferrules, pipe caps, swivel joints, and branch supports. Among them, the tees and crosses come in both equal and unequal sizes; similarly, the double socket ferrules also have equal and unequal sizes, with the unequal ones further categorized into concentric and eccentric types.