| Element | Min % | Max % |
| C | – | 0.03 |
| Si | – | 1.00 |
| Mn | – | 2.00 |
| P | – | 0.025 |
| S | – | 0.01 |
| N | – | 0.10 |
| Cr | 17.00 | 19.00 |
| Mo | 2.25 | 3.50 |
| Ni | 13.00 | 15.00 |
| Cu | – | 0.50 |
| Fe | bal |
| Properties | Metric | English |
| Tensile Strength | 586 MPa | 85,000 PSI |
| Yield Strength | 434 MPa | 62,900 PSI |
| Elongation (at break) | 57% | 57% |
| Hardness (Rockwell B) | 88 HRB | 88 HRB |