| Element | % by Wt |
| C | 0.50 - 1.00 |
| Si | 0.25 - 0.75 |
| Mn | 0.80 - 1.20 |
| P | 0.02 |
| S | 0.02 |
| Cr | 0.05 - 0.90 |
| Ni | 0.05 - 0.50 |
| Mo | 0.10 |
| Cu | 0.03 - 0.05 |
| V | 0.02 - 0.04 |
| Co | 0.04 - 0.06 |