What are Stainless steel pipe fittings ? Steel pipe fittings are frequently made from welded or seamless pipe by being extruded or drawn over a mandrel. To match the threads on the pipe ends, they are usually threaded in smaller sizes. They are frequently socket-weld or butt-weld welded in place as diameters and pressures rise. What is the objective of carbon steel pipe? Pipe fittings, commonly...