We achieve increased hardness (and therefore the strength) of steels using the vacuum hardening and tempering processes. This delivers through hardening of the material. Heat treatment processes are also used to increase fatigue life, wear resistance and, in some cases, corrosion properties. It is a tool and die heat treatment process, and is used to harden D2, to harden H13, and to harden tool steel.
Gas Nitriding is normally carried out on hardened and tempered and fully stabilised parts to produce a hard wear resistant case, enhanced corrosion resistance and good fatigue performance.
The process is usually performed on fully finished components which, in many instances, require no additional operations prior to assembly.
Whilst Gas Nitriding is normally applied to low alloy steels it is possible to Nitride other materials such as stainless steel, titanium and nickel alloys, however the preferred nitriding route for those materials is Plasma Nitriding.