Carbon restoration is used to restore the correct carbon level to steel surfaces that have had their carbon content changed by exposure to the furnace atmosphere. The carbon content in the furnace atmosphere is thermodynamically driven to equalize with the carbon in the steel surface. This can lead to decarburization (loss of carbon from the steel surface) or inadvertent carburization (increase in carbon at the steel surface). In carbon restoration, the part is placed in the furnace at a carefully selected combination of atmosphere carbon, time and temperature to return the steel surface to the desired carbon level.
NATIONAL HEAT TREAT can perform atmosphere carbon restoration in any of our five(5) atmosphere furnaces.