Stainless Steel Alloy 321 | Product Properties, Composition & Machinability

Stainless steel alloy 321 is a stabilized austenitic stainless steel grade primarily composed of 18% chromium and 8% nickel. The addition of titanium provides stabilization against sensitization and intergranular corrosion during prolonged exposure to high temperatures. Alloy 321 exhibits excellent resistance to oxidation and scaling at elevated temperatures, making it well-suited for applications in the aerospace, petrochemical, and thermal processing industries. Its enhanced high-temperature properties, coupled with its weldability and formability, make it a reliable choice for fabrication in challenging environments. Stainless steel alloy 321 is a versatile material, offering a combination of strength, corrosion resistance, and stability, making it valuable in various engineering applications.