Carburizing is a surface or case hardening process normally applied to low-carbon steel alloys. During processing, carbon is diffused into the surface of the parts at elevated temperatures. Hardening occurs to this "carburized case" by quenching in oil from above the transformation range resulting in a hard surface for wear resistance and a soft core for ductility.
Benefits are:
Hard and high wear resistance surface
Deep case depth potential
Improves durability
