Flame Hardening

Flame hardening is a surface hardening process in which heat is applied by a high temperature flame followed by quenching jets of water. It is usually applied to medium to large size components such as center plates, large gears, sprockets, slide ways of machine tools, bearing surfaces of shafts and axles, etc. Steels most suited have a carbon content within the range 0.40-0.55%.

Utilizing two flame hardening units mounted on turntables, we control the hardening specifically to the high wear areas of any product configuration.


Material and results

The degree of hardness depends on the chemical analysis of the metal, with carbon being the principal controlling element.

In choosing a material, availability, cost, hardness, and machinability are factors to consider. Our technical staff can advise you and discuss specific applications.