W.-Nr. 1.4528 ( DIN X105CrCoMo18-2 ) High carbon martensitic stainless chromium steel with cobalt, molybdenum and vanadium is equivalent to BOHLER N690 or written as N690Co. It's a similar version of Japanese VG10 steel.
Hardened cutting tools with excellent edge-holding property, such as knive blades, cutting surgical instruments, rotary knives for the meat processing industry, plate and knive-edge fulcrums, corrosion resistant roller bearings, valve needles and pistons for refrigerating machines.
Hardness approx. 60 HRC
Very high resistance to rust
Very good to polish
High edge retention on sharpening level B / C
Recommendation for outdoor knives, camping knives, pocket knives, hunting knives, etc.
NOT suitable for Damascus steel!
Hardening: 1050 ° / tempering at 180 ° C for 2 x 2 hours (in between quenching in cold water) gives approx. 60 HRC.
| C | Si | Mn | Cr | Mo | V | Co |
| 1.08 | 0.40 | 0.40 | 17.30 | 1.10 | 0.10 | 1.50 |
Hardened cutting tools with excellent edge-holding property, such as knive blades, cutting surgical instruments, rotary knives for the meat processing industry, plate and knive-edge fulcrums, corrosion resistant roller bearings, valve needles and pistons for refrigerating machines.
Martensitic chromium steel with cobalt, molybdenum and vanadium addition. For tools and components which can be hardened to very high hardness levels. Surface finish required for good corrosion resistance: fine ground or polished.