321 stainless steel plates

321 stainless steel plates are part of the austenitic family of stainless steel. 321 is basically a 304 grade containing a stabilizer of titanium. Type 321 is a good choice for applications where heat is an issue. 321 can be used in applications up to 900°C where 304 is normally used up to 500°C. Grade 321 has excellent forming and welding characteristics. It does not polish well so would not be used for decorative applications. TW stocks a wide range of sizes in 321 stainless certified to AMS 5510, ASTM A 240, and SA 666.

APPLICATIONS:

  • Aircraft exhaust manifolds
  • Expansion joints
  • Furnace parts
  • Heat exchangers
Typical Chemical Requirements
Carbon Max 0.08
Manganese Max 2
Phosphorous Max 0.045
Sulfur Max 0.03
Silicon Max 0.75
Chromium Range 17-19
Nickel Range 9-12
Nitrogen Max 0.1
Titanium .70
Mechanical Properties
Tensile Strength Min 75 KSI
Yield Strength Min 30 KSI
Elongation Min 40%
Hardness Min 95 HRB

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