Tempering is a process to increase the hardness and durability of metal materials. Tempering is done by the arrangement of microscopic structures in the internal structure of metal materials. This process consists of heating and cooling the metal material to a certain temperature.
The tempering temperature can vary according to factors that determine the properties of the metal material, such as hardness and durability. Generally, the tempering temperature is determined by the nature of the metal material, its thickness, shape and the purpose for which it is processed.
Tempering is used to increase the hardness and durability of very hard and brittle metal materials such as tool steels. After tempering, tool steels can last longer as they are more durable and wear less during processing.