Carburising

Carburising is a case hardening process by which carbon is introduced to the surface of a ferrous alloy at an elevated temperature while the steel is in contact with a suitable carbonaceous material. The carbonaceous material may be solid, liquid or gas.

Carburising produces a case or an outer shell of a higher carbon content which is made harder than the core by quenching. The heating and quenching of a carburised piece of a steel produces a harder outer shell and a softer core and is referred to as case hardening.
Advantages

• Hard, wear resistant surface
• Tough ductile core
• Increased strength
• Possible substitute for through hardening steels
• Surface and core hardness can be closely controlled
• Wide selection of materials
• Close dimensional tolerances by grinding and honing
• Good machineability of carious grades of carburising steels
• Excellent stability by deep freezing
• Localised hard, soft and tough areas possible
• Wide range of mechanical design

Gas carburising can be carried out in our fluidised bed furnace (2 units), continuous and Lindberg sealed quench furnace.