| Elements | Composition (wt%) |
| Carbon (C) | 0.170 |
| Silicon (Si) | 0.215 |
| Manganese (Mn) | 0.450 |
| Sulphur (S) | 0.015 |
| Phosphorus (P) | 0.022 |
| Nickel (Ni) | 0.020 |
| Aluminium (Al) | 0.031 |
| Chromium (Cr) | 0.020 |
| Vanadium (V) | 0.002 |
| Copper (Cu) | 0.080 |
| Colbalt (Co) | 0.009 |
| Molebdenum (Mo) | 0.004 |
| Iron (Fe) | Balance |