321 Stainless Steel Tube

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About Smiths Advanced

We are a leading stockholder and global supplier of metals and plastics into Aerospace & Space, Chemical, Defence, Medical, MRO, Naval, Nuclear, Oil & Gas and Power industries.

We make high quality materials available in a fast, cost-effective and convenient package and provide a consistent supply path for all our customers.

321 Stainless Steel Tube

Carbide precipitation resistant at high temperatures.

As 321 stainless steel is austenitic, toughness and overall strength levels are maintained at cryogenic temperatures.

Our 321 stainless steel tubes are stabilised with titanium and offer resistance to intergranular corrosion.

321 stainless steel is similar to Type 304 but with greater levels of carbon and titanium. The inclusion of titanium makes the alloy more resistant to carbide precipitation at elevated temperatures. 321 is often referred to as a heat resistant grade because good corrosion resistance and strength characteristics are maintained even at high-temperature levels. As 321 is austenitic, toughness and overall strength levels are maintained at cryogenic temperatures. The material also offers good weldability with superior creep and stress rupture capabilities compared to Type 304 and 304L.

Commercial Applications

The alloy finds use in demanding applications where high temperatures are present and include exhaust stacks, expansion joints, engine manifolds and oil refinery equipment.

Stock Availability

Smiths Advanced Metals stocks 321 stainless steel tubes in seamless or welded form. Tubes from grade 321 are available in various sizes. We also provide a tube cutting service where we supply your tubular products to exact lengths.