A heat-treatment process, applied to steel or iron-carbon alloys, by which a harder outside is obtained over a softer interior; depth or increased hardness depends upon length of treatment.

Related Links

Process of Case Hardening Steel & Metals: What is Case Hardening?
Carburizing and Case Hardening- Metlab of Wyndmoor PA
Case (Surface) Hardening versus Through Hardening of Steel ? Axis Fabrication

Related Videos