Gas carburizing

Gas Carburizing

Gas carburizing is a high-temperature case-hardening process for medium to low carbon steels that improves wear-resistance, fatigue, and galling. Carburizing is a popular case hardening method because it is relatively quick, low-cost, and capable of achieving both high hardness (>62HRC) and deep case depths (>0.090 in.). The process relies on the incorporation of carbon into the structure of the steel surface and typically requires a subsequent transformation through quenching to achieve the desired hardening response.

Select grades of steel are designed to undergo carburizing treatments. The so-called “carburizing grades” including 8620 and 9310 steels. Steel grades such as 1018, 1020, 4330V, and EN30B are also routinely carburized to improve surface performance characteristics.

Man running the controls of the gas carburizing machine

Gas Carburizing


  • Working envelope: 44”L x 26” W x12”H
  • Weight capacity: 800lbs per load
  • Temperature range: Up to 1800F (980C)

Quench Media:

  • Oil
  • Water


  • Low-carbon, and low alloy steels are most common.
  • 1018,1020,1026,8620,9310 and more.

Case Depths:

  • Standard recipes for 0.01-0.09”. Rapid development for optimized recipes using our internal models ensure minimal turn-around time.

CLICK HERE to view Sample Gas Carburizing Report