321 (Annealed)

This type of stainless steel is similar to 304 however it contains a titanium addition.

Typical applications include: aircraft manifolds, chemical processing equipment, welded equipment, and jet engine parts. 

**These numbers are based on actual test data and represent the alloy’s range of possible mechanical properties. This data is not meant to replace design guides and specifications and should not be used by themselves for design purposes. Please consult with Signicast’s engineering team for further assistance.  

Mechanical Properties

Material Alloy Tensile Strength   Yield Strength (0.2%)   Hardness   Hardness   Annealed   Hardened   Cycle Anneal (max)   Cycle Anneal (max)   Process
PSI x 103
PSI x 103
Rockwell B (HRC)
Rockwell C (HRC)
Rockwell B
Rockwell C
300 Series Stainless Steels


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Last updated 12.05.2019