Batch hardening of Sandvik 14C28 knife steel

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Temperature should be equalized at 850oC (1560oF) 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
59 HRC 175oC (345oF)
57 HRC 225oC (435oF)
55 HRC 350oC (660oF)