AUS-4
AUS-4 is a simple Japanese steel that no longer plays much of a role on the market – with very few exceptions. It is at the performance level of 440A.
| Origin: | Japan |
| Carbon (%): | 0,4-0,45 |
| Chrome (%): | 13-14,5 |
| Manganese (%): | 1 |
| Nickel (%): | 0,4 |
| Silicon (%): | 1 |
| Phosphorus (%): | 0,4 |
| Rockwell (HRC): | 55-57 |