Stainless Steel 321

Stainless 321 is a chromium-nickel steel which was developed with improved intergranular-corrosion resistance. Stainless 321 is resistant to atmospheric corrosion, sterilizing solutions, many organic chemicals, and a wide variety of inorganic chemicals. Type 321 should be used for applications requiring heating between 800 F and 1650 F such as aircraft collector rings, and exhaust manifolds, expansion joints, and high temperature chemical process equipment.

Common Trade Names for Stainless STeel 321 include:

  • Stainless Steel 321

Chemical Data for Stainless STeel 321

  • C: .08
  • Mn: 2.00
  • P: .045
  • S: .03
  • Si: 1.00
  • Cr: 17.0-19.0
  • Ni: 9.0-12.0
  • Mo: .50
  • Cu: .50
  • Ti: 5 X C MIN

Available Forms for Stainless STeel 321

  • Wire
  • Bar
  • Sheet
  • Plate
  • Tube
  • Pipe
  • Fittings
  • Flanges
  • Forgings
  • Welding Rod

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Trademark Notice: Some names are trade names and/or trademarks of specific manufacturers. Source 1 Alloys is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from all available source(s). Product names are listed solely for reference to help identify products consistent with listed specifications.