Carbonitriding

Carbonitriding process temperature is between cementation and nitration.​

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During carbonitration at around 850 °C, carbon and nitrogen are simultaneously sent to the material surface as interstitial atoms and then rapidly cooled in oil.

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Carbonitriding creates a hard and wear-resistant layer. In general, it benefits the surface hardening of low-alloy series product materials.

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Depending on the alloy of the material, it creates a maximum depth of around 0.6-0.7 mm.

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Fasteners are used extensively in industry. It is also preferred in clutch pressure plates to keep the deformation that occurs during heat treatment to a minimum.

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Suitable qualities,

• Low alloy steels

  • C10, SAE 1020​

• Automatic steels​

  • 35 S 20 (1.0726), 60 S 20 (1.0728) and 10 S 20 (1.0721)

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CQI-9 Table A is used for this heat treatment technique in the automotive industry.

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