Heat Treatment Process for S45C Steel

1. Quenching
Heating: Heat the S45C steel to a temperature range of 880°C to 910°C (the exact temperature depends on specific process requirements).
Holding: Maintain the target temperature for a period of time, determined by the steel's size and desired properties.
Quenching: Rapidly cool the heated steel by immersing it in water, oil, or another quenching medium until it reaches below room temperature. This rapid cooling forms a martensitic structure, enhancing hardness and strength.

2. Tempering
Heating: Heat the quenched S45C steel to a temperature between 150°C and 250°C (the specific temperature varies based on the desired balance of hardness and strength).
Holding: Hold the steel at this temperature for a sufficient duration to ensure uniform heat penetration throughout the material.
Cooling: Cool the steel in air or using another suitable method. Tempering reduces hardness slightly while improving toughness and ductility.

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