321 Stainless Steel Sheet & Coil

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Available Decimal Thickness (in)

  • .240 - .300
  • .77 - .240
  • .150 - .165
  • .130 - .150
  • .113 - .130
  • .098 - .113
  • .083 - .098
  • .070 - .083
  • .066 - .070
  • .056 - .066
  • .052 - .056
  • .045 - .052
  • .037 - .045
  • .033 - .037
  • .029 - .033
  • .026 - .029
  • .022 - .026
  • .018 - .022
  • .015 - .018

321 stainless steel is most similar to 304 stainless steel, however it contains the addition of Titanium making it an excellent choice for prolonged high temperature applications. The addition of Titanium stabilizes this grade of stainless steel against the formation of Chromium Carbide in heat ranges between 800 to 1500 degrees Fahrenheit.

Common Applications

All of our 321 stainless steel is ordered to specific decimal thicknesses. United Performance Metals supplies 321 stainless steel in sheet, strip and coil in the thicknesses to the left.

United Performance Metals can supply 321 in widths of 48" down to .250" and standard lengths of 96" and 120" or custom leveled to your specific requirements.

United Performance Metals 321 stainless steel is supplied to AMS 5510.

321 Tech Data Sheet

Instant Online Quote (Sheet)

Request for Quote (Coil)

We stock only prime metals and alloys that are certified to AMS, MILS and ASTM specifications. Materials are ordered not by just gauge, but to precise decimal thickness.