Batch hardening of Alleima® 7C27Mo2 knife steel

Temperature should be equalized at 850°C (1560°F) for 30 minutes to avoid unnecessary temperature variations.

Austenitizing

Batch furnace. 30 minutes in furnace.

Quenching

Quench as rapidly as possible. For optimal results 600°C (1110°F) should be reached within 2 minutes or less.

Tempering (2 hours)
Hardness Temperature
57 HRC 175°C (345°F)
55 HRC 225°C (435°F)
53 HRC 350°C (660°F)