2604/2704 Furnace Control Supplement

The 2704/2604 instruments are ideal for use in many heat treatment applications including gas carburizing.

During the carburizing process mild steel or certain low carbon alloy steels are heated at temperatures above 900°C in a carbon rich atmosphere, the surface of the steel absorbs carbon by diffusion.

The depth of carbon enrichment depends on the time and temperature of the treatment.

The presence of carbon in the steel causes a change in its physical properties.

Accurate control of both temperature and the carbon potential are needed to achieve the required profile of carbon enrichment.