The Tufftriding TF1 treatment is an industrially mature process used across the world for salt bath nitrocarburizing steel, sintered iron and cast iron. Work pieces treated by this process have a greatly improved resistance to wear, to corrosion and to fatigue and the sliding properties are much enhanced too. By using this process, it is often possible to replace expensive materials by less costly ones, or it can be used as a substitute for complicated coating processes.