The EN 10083-3 standard for grade 1.7225 (42CrMo4) specifies the following composition ranges by weight percent (%):
| Element | Minimum (%) | Maximum (%) | Note |
|---|---|---|---|
| Carbon (C) | 0.38 | 0.45 | |
| Silicon (Si) | 0.15 | 0.40 | Deoxidizer, strength. |
| Manganese (Mn) | 0.60 | 1.00 | Hardenability. |
| Phosphorus (P) | - | 0.025 | Impurity, kept low. |
| Sulfur (S) | - | 0.035 | Impurity (can be higher for free-machining variants). |
| Chromium (Cr) | 0.90 | 1.20 | Hardenability, wear. |
| Molybdenum (Mo) | 0.15 | 0.30 | Tempering resistance, hardenability. |
Some standards may also include limits for residual elements like Copper (Cu), Nickel (Ni), and Tin (Sn).