we maintain the highest quality standards and exceed our customers’ expectations for timely delivery and prompt service nitriding applications nitriding is a hardening process favored by metallurgists because it is a relatively low-temperature technique, which mitigates the risk of part distortion. nitriding is widely used for surface hardening of components such as: -bearings -cylinder liners -dies -feed screws -gears -orifice disks -piston rings -shafts -splines -spray nozzles -valves and others.