Batch hardening of Sandvik 19C27 knife steel

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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
60 HRC 175°C (345°F)
57 HRC 225°C (435°F)
55 HRC 350°C (660°F)