Stainless Steel 347 Long Weld Neck Flanges

Stainless Steel 347 Long Weld Neck Flanges are composed of chromium, nickel, and carbon, with trace amounts of nitrogen and manganese. The alloy is most recognizable for its superior corrosion resistance, especially in modern environments with prominent corrosive agents such as sulfuric acid. The chromium content gives the alloy a passive protective layer that prevents damage from oxidation reactions at elevated temperatures. In addition to its corrosion resistance, the fine structure of the alloy allows stainless steel 347 flanges to withstand high temperatures and pressures. Durability is also increased due to austenitic and martensitic-stainless steel forms having a low thermal expansion coefficient which helps reduce distortion when subject to heat or pressure.

Stainless Steel 347 Long Weld Neck Flanges are an excellent choice for many applications due to their diverse range of beneficial properties. They are heat resistant and offer superior resistance to general corrosion and oxidation, particularly when exposed to sulfur-bearing atmospheres. The low carbon content of these flanges makes them ideal for welding operations and helps prevent an increase in intergranular corrosion. Furthermore, Stainless Steel 347 Weld neck Flanges boast good strength, flexibility, and creep resistance at high temperatures. They can be used in various industries, including chemical processing, oil refineries, cryogenic services, pulp and paper manufacturing, water desalination units and the automotive industry.