Boron Steels
| Steel | BS 970 1991 | BS 970 1983 | BS 970 1955 EN | AISI / SAE | Werkstöff | Kerzname |
|---|---|---|---|---|---|---|
| 170H15 | 170H15 | 170H15 | – | – | – | – |
| 170H20 | 170H20 | 170H20 | – | 15B21H | 1.5523 | 19 MnB 4 |
| 170H36 | 170H36 | 170H36 | – | 15B35H | – | – |
| 170H41 | 170H41 | 170H41 | – | – | 1.5527 | 40 MnB 4 |
| 173H16 | 173H16 | 173H16 | – | – | – | – |
| 174H20 | 174H20 | 174H20 | – | – | – | – |
| 175H23 | 175H23 | 175H23 | – | – | – | – |
| 185H40 | 185H40 | 185H40 | – | – | – | – |
These Comparison Charts are based on chemical composition and type analysis. Mechanical properties have not been taken into account although in many cases may be similar. The information in the charts should therefore be used for guidance only.