BÖHLER N678 is a hardenable corrosion resistant Cr-Mo steel grade with addition of Vanadium for hardened tools and parts with good corrosion resistance in sea water and chloric medias.
Good hardenability, hardness range 57 – 59 HRC, good abrasive wear – and cutting edge resistance.
| C | Si | Mn | Cr | Mo | V | |
|---|---|---|---|---|---|---|
| 0.79 | 0.40 | 0.40 | 13.50 | 0.45 | 1.90 |
