Stainless steel pipe fittings are employed for direction change, size reduction, connection, and sealing in piping systems. They feature excellent corrosion resistance, high strength, and smooth surfaces for easy cleaning. Common grades include 304 and 316L stainless steel. Major types comprise elbows, tees, reducers, caps, and flanges. Widely used in petroleum, chemical, pharmaceutical, and food industries, these fittings are indispensable components of modern industrial piping systems.