Batch hardening with deep freezing at -20°C/-5°F of Alleima® 14C28 knife steel

Temperature should be equalized at 850^oC (1560^oF) 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.

Deep freezing

The material only needs to reach the desired deep freezing temperature, no soaking-time is required.