Cermet consists of a hard phase surrounded by binding phase as in the case of cemented carbides. The hard phase consists mainly of titanium carbide (TiC) and titanium nitride (TiN). These carbides and nitrides are superior in strength and oxidation resistance at high temperatures when compared with tungsten carbide (WC). Furthermore, there is little tendency to react with the work material, ensuring higher crater resistance. Finally, cermet grades are applicable from high-speed cutting range to low-speed range and feature excellent surface roughness.
