Titanium-stabilized austenitic grade
321 Stainless Steel
321 is a titanium-stabilized austenitic stainless steel used where welded fabrication and elevated-temperature exposure make stabilization relevant. It should be selected against the governing standard, service temperature, corrosion environment and fabrication route.
Final material selection remains the responsibility of the project design authority. Confirm product form, governing standard and current availability with sales.
Specification overview
| Material standard | Confirm with sales |
|---|---|
| Product form and dimensions | Confirm with sales |
| Service temperature | State in RFQ |
| Inspection and documents | Confirm with sales |
Selection note
Confirm whether stabilization, elevated-temperature service and post-weld corrosion requirements make 321 appropriate for the design.
Characteristics
- Titanium-stabilized austenitic grade
- Used in selected welded and elevated-temperature applications
- Good fabrication potential with the correct route
- Not a universal substitute for 304L or heat-resistant grades
Available forms
Common finishes
Typical applications
- Heat exchanger components
- Exhaust and thermal equipment
- Welded process equipment
- High-temperature fabrication subject to engineering review