| Martensitic Stainless Steel |
| Cast Alloy Designation | C12A |
| UNS Number | J84090 |
|
| Comparable Wrought Alloy | --- |
| Applicable ASTM Spec | A217 |
|
|
| Chemical Composition |
| C | 0.08 - 0.12 |
| Mn | 0.3 - 0.12 |
| Si | 0.20 - 0.50 |
| P | 0.025 |
| S | 0.01 |
| Cr | 8.0 - 9.5 |
|
| Ni | 0.4 |
| Mo | 0.85 - 1.05 |
| Fe | --- |
| Cu | --- |
| Other | Cb 0.06 - 0.10N 0.030 - 0.070, V 0.18 - 0.25 |
|
|
| Mechanical Properties |
| Tensile (ksi) | 85 -110 |
| Yield (ksi) | 60 |
| Elongation (%) | 18 |
|
| Reduction of area (%) | 45 |
| Hardness (Brinell) | --- |
|
|
| Notes |
| All single values are maximums unless noted otherwise.
Brinell hardness values and ranges represent typicals for the grade. |
| More Info |
| Weldable | Yes but crack prone |
| Castability | Hard |
| Processability | Medium |
