| Heat Resistant Stainless Steel |
| Cast Alloy Designation | HK40 | | UNS Number | J94204 |
| | Comparable Wrought Alloy | 310H | | Applicable ASTM Spec | A351 |
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| Chemical Composition |
| C | 0.35 - 0.45 | | Mn | 1.5 | | Si | 1.75 | | P | 0.04 | | S | 0.04 | | Cr | 23.0 - 27.0 |
| | Ni | 19.0 - 22.0 | | Mo | 0.50 | | Fe | --- | | Cu | --- | | Other | --- |
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| Mechanical Properties |
| Tensile (ksi) | 62 | | Yield (ksi) | 35 | | Elongation (%) | 10 |
| | Reduction of area (%) | --- | | Hardness (Brinell) | 170 |
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| Notes |
| All single values are maximums unless noted otherwise.
Brinell hardness values and ranges represent typicals for the grade. |
| More Info |
| Weldable | Yes |
| Castability | Good |
| Processability | Good |
