Overview and characteristics of SUS321
SUS321 type is a Ni Cr Ti austenitic stainless steel with good wear resistance, high temperature resistance, creep resistance, etc. The excellent wear resistance of 321 stainless steel is manifested in different concentrations of organic and inorganic acids. Temperature, especially in oxidizing media. Meanwhile, Grade 321 is also a fire-resistant steel with higher temperature resistance than 316L. Its performance is very similar to 304; However, due to the addition of Ti as a stabilizing element, 321 stainless steel has better high-temperature strength and intergranular corrosion resistance, which can effectively control the formation of chromium carbide.
SUS321 stainless steel has excellent high-temperature stress fracture performance and high-temperature creep resistance. Its stress mechanical properties are superior to 304 stainless steel, making it suitable for welding components used at high temperatures.
SUS321 Application
1) Linings and pipelines for wear-resistant acid containers and wear-resistant equipment;
2) Petroleum waste gas combustion pipeline;
3) Engine exhaust pipe;
4) Boiler shell, heat exchanger, and furnace components;
5) Diesel engine silencer;
6) Boiler pressure vessel;
7) Chemical transportation vehicles;
8) Expansion joint;
9) Spiral welded pipes for furnace tubes and drying machines;
10) Aircraft;
