Chemical composition
| element | min% | max% | |
|---|---|---|---|
| C | 0,37 | 0,44 | |
| Si | 0,15 | 0,35 | |
| Mn | 0,60 | 0,90 | |
| P | 0 | 0,035 | |
| S | 0 | 0,035 |
Comparative chart
international standards
| Nation | Standard |
| Australia | 1040 M1040 |
| Bulgary | 40 |
| Czech/Slovak Republic | 12041 |
| Europa | C40 |
| Germany | C40 |
| France | XC40H1 AF 60 |
| Great Britan | 080 M 40 |
| Italy | C40 |
| Polon | 40 |
| Rumania | OLC 40 |
| Russia | 40 |
| Spain | 1C40 F.114.A |
| China | 40 |
| USA | 1040 (SAE) |