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Learn about the chemical composition, physical and mechanical properties, and welding and heat treatment of SS321 stainless steel, also known as AISI 321, TP321, or 321H. Compare the different grades and specifications of SS321 stainless steel based on ASTM and other standards.
Oct 23, 2001 · Grade 321 is the grade of choice for applications in the temperature range of up to about 900 °C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion. Grade 321H is a modification of 321 with higher carbon content, to provide improved high-temperature strength.
Like other austenitic grades, 321 has excellent forming and welding characteristics, is readily brake or roll formed and has outstanding welding characteristics. Post-weld annealing is not required. Grade 321 also has excellent toughness, even down to cryogenic temperatures.
Learn about the properties, specifications, applications, and fabrication options of 321 and 321H stainless steel plate, two austenitic materials stabilized by titanium. Compare the differences in carbon content, heat resistance, and corrosion resistance of these grades.
While corrosion resistance is similar to 304 and 304L in the annealed condition, it features higher creep and stress rupture properties. These properties make it ideal for pressure vessels and boiler applications. 321 stainless steel is non-magnetic and heat resistant for continuous service at elevated temperatures.
Learn about the properties, applications and processing of Alloy 321 (UNS S32100) and Alloy 321H (UNS S32109), titanium stabilized austenitic stainless steels. Compare their chemical, mechanical and physical characteristics with tables and charts.
Jan 10, 2023 · Conclusion: If you’re looking for a high-strength, corrosion-resistant stainless steel option, 321 stainless steel is ideal. Its excellent mechanical properties are perfect for many applications, including heat exchangers, kiln linings, and aircraft components. Let’s take a closer look at the 321 stainless steel properties and uses.
