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Type 321 Stainless SteelType 321 Stainless Steel

Austenitic Stainless Steel with added Titanium

Type 321 stainless is an austenitic steel alloy with added Titanium which acts as a stabiliser.

Titanium content is typically five times that of the carbon content and this addition reduces carbide precipitation during welding and improves elevated temperature properties. Type 321 offers excellent resistance to oxidation and chemical corrosion. The alloy also possesses good creep strength. It can be readily formed or drawn though it is more difficult to form than other austenitic grades. Type 321 is used in a wide range of applications including oil & gas, petrochemical, aerospace and general industry.

Key Features:

Type 321 stainless steel is a variation of grade 304 with the addition of titanium as a stabiliser. The alloy is resistant to intergranular corrosion and can be easily welded and/or formed.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.



Download Type 321 Stainless Steel Datasheet

Typical Applications:

  • Jet aircraft components
  • Oil refinery equipment
  • Stack liners
  • Industrial boilers
  • Pressure vessels
  • Heat exchangers


We offer Type 321 Stainless Steel in round bar, plate, sheet, wire and tube. We also offer processing services throughout the Smiths Group - with more than 30 band saws and a fully automated magazine feed CNC rod blanking line, we can process your material to your exact requirements.

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To find out more about Smiths Metal Centres extensive range of high quality stainless steel products, click on one of our products on the side menu of this web page.

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