EN34 | 665M17 is a 2% nickel, molybdenum case hardening steel grade. EN34 | 665M17 is suitable for applications requiring wear resistance and shock resistance.
It offers good core strength and impact properties with little temper brittleness. Combining good core strength, toughness and fatigue resistance EN34 | 665M17 can be case hardened up to 60HRc.