Tool steel is used to manufacture cold punching die, hot forging die, die casting die and other types of steel.Mould is the main tool for manufacturing parts in the industrial sectors such as machinery manufacturing, radio instruments, motors and electric appliances.The quality of the die directly affects the quality of the pressure processing technology, the precision of the product output and production cost, and the quality and service life of the die in addition to the reasonable structure design and processing accuracy, mainly affected by the die material and heat treatment.

Tool steel can be roughly divided into: cold rolled die steel, hot rolled die steel and plastic die steel three types, used for forging, stamping, cutting, die casting and so on.As a result of a variety of mold USES different, working conditions are complex, so for the mold steel, according to the working conditions of the mold, should have high hardness, strength, wear resistance, enough toughness, as well as high hardenability, hardening and other process performance.Because this kind of use is different, the working condition is complex, therefore to die steel’s performance request is also different.