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Carbonitriding
What’s Carbonitriding?
Carbonitriding is a thermochemical surface hardening process that infuses both carbon and nitrogen into the surface layer of steel. Performed at elevated temperatures (typically 800–900°C), the process creates a hard, wear-resistant case while preserving the toughness of the core.
Carbonitriding enhances surface hardness, fatigue strength, and wear resistance, making it ideal for parts that operate under friction and mechanical stress. It is commonly used in gears, fasteners, mold components, and automotive parts, especially when using low-carbon steels.
Others Surface Treatment Choice For Parts
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Spraying
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PVD
Pad Printing
Hot Stamping
Mold Polishing
Laser Engraving
Silk Screen Printing
FAQ Of Carbonitriding
Visit our FAQ center for more questions.
What is the difference between carbonitriding and carburizing?
Carburizing only adds carbon to the steel surface, while carbonitriding adds both carbon and nitrogen, resulting in a harder case at lower temperatures. Carbonitriding is especially suitable for low-carbon steels and parts requiring shallow case depths with excellent wear resistance.
What materials are suitable for carbonitriding?
Carbonitriding is typically applied to low-carbon steels, mild steels, and low-alloy steels that require improved hardness and surface wear properties without using more expensive alloyed materials.
What are the advantages of using carbonitriding in mold and precision part manufacturing?
- Enhanced surface hardness and wear resistance
- Improved fatigue strength, prolonging part lifespan
- Performed at lower temperatures, reducing distortion risks
- Cost-effective for large-volume production using low-cost steels