Carbonitriding

Carbonitriding is often applied for steels that have a lower alloying content than the carburizing steels. In the carbonitriding process, carbon is added to the surface in the same manner as in case hardening, but in addition nitrogen is supplied by the addition of ammonia to the atmosphere. The nitrogen increases hardenability and compensates for the lower alloying content of the steel. It is therefore possible to surface-harden low-alloy and carbon steels by means of carbonitriding.

Processes: Batch and continuous