Stainless Steel 317L, UNS S31703, WNR 1.4438 Seamless Pipes

317L is molybdenum bearing austenitic stainless steel similar to 316, but with higher molybdenum alloy content. It is also known as UNS S31700, and is primarily comprised of 18% to 20% chromium and 11% to 15% nickel. 317L offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures than conventional stainless steels. It is a low carbon grade which provides resistance to sensitization during welding and other thermal processes. 317L has excellent corrosion resistance and is used mainly in high acidic chloride media, such as those encountered in pulp and paper mills.

317L seamless pipes and tubes, 317L buttweld fittings, forged fittings and flanges are primarily used in manufacturing flue gas desulfurization systems, textile equipment, chemical and petro-chemical processing equipment, pulp and paper plants, food processing equipment and textile equipment. We specialize in supply of 317L seamless pipes and tubes, along with equivalent fittings for manufacture of heat exchangers, piping systems, tanks and pressure vessels.

Stainless Steel 317L, UNS S31703, WNR 1.4438 Seamless Pipes, Tubes / Tubing, and Butt Weld Fittings

Stainless Steel 317L pipes and tubes are available in both seamless and welded form in OD and NB sizes. In addition to standard sizes, which are available in stock, our specialty is to manufacture and supply custom size SS 317L cold drawn seamless tubes from our factory.