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Overview
Specifications
321 Stainless Steel
321 is an austenitic stainless steel stabilized with titanium. It is commonly used in high-temperature applications. In the ASTM A193 specification, it is designated as Grade B8T.
Grade Description
| Grade | Description |
|---|---|
| ASTM A193 B8T | Class 1 or 2 Stainless steel, AISI 321, with additional element of Titanium |
Mechanical Requirements
| Condition | Tensile Strength, min. (ksi) | Yield Strength, min. (ksi) | Hardness, max. |
|---|---|---|---|
| Class 1 | 75 | 30 | 223 HB or 96 HRB |
| Class 2 (3/4″ and under) | 125 | 100 | 321 HB or 35 HRC |