N690
The cobalt-alloyed N690 by Böhler (not to be confused with the lower-grade N695!) is a very reliable upper middle-grade steel we use at our Solingen manufacture for a wide variety of projects. The fine-grained N690, which ranks above 440C, offers convincing performance data in all areas. It is often sold as N690Co – the "Co" stands for cobalt and describes the exact same steel.
| Origin: | Austria |
| Carbon (%): | 1,07 |
| Chrome (%): | 17,3 |
| Molybdenum (%): | 1,1 |
| Vanadium (%): | 0,1 |
| Manganese (%): | 0,4 |
| Silicon (%): | 0,4 |
| Cobalt (%): | 1,5 |
| Rockwell (HRC): | 58-60 |