Stainless Steel 309 Round Pipes

The chemical composition of 309 stainless steel round pipes includes a high percentage of chromium and nickel. It also contains smaller amounts of manganese, silicon, and carbon. The major alloying elements are iron (Fe), 22-26% chromium (Cr), 12-15% nickel (Ni), and 2-3% molybdenum (Mo). The other minor constituents may include nitrogen (N) and copper (Cu).

309 SS round pipes are popularly used in manufacturing process equipment, vessels, heat exchangers, and condensers. Its excellent corrosion and oxidation resistance make it suitable for high-temperature applications such as nitric and acetic acid. It has superior strength, workability, and weldability making it a great choice for structural needs. Its high thermal conductivity makes it an ideal choice for industrial piping applications. Its properties include good mechanical strength, excellent creep/stress rupture characteristics, and ductility.