Stainless Steel Pipe Fittings Specification

ASTM A403 specifies the standard for wrought austenitic stainless steel pipe fittings used in pressure piping and high-temperature applications. The specification covers both seamless and welded fittings, including elbows, tees, reducers, and caps. Common grades include 304/304L and 316/316L, which offer excellent corrosion resistance. These fittings are widely used in industries such as chemical processing, oil and gas, and power generation.