Die steel is a steel type used to manufacture cold stamping dies, hot forging dies, and die-casting dies. Mold steel can be roughly divided into three categories: cold-rolled mold steel, hot-rolled mold steel, and plastic mold steel, which are used for forging, stamping, cutting, and die casting. Due to the different uses of various molds and complex working conditions, the steel for molds should have high hardness, strength, wear resistance, sufficient toughness, and high hardenability Rigid and other process properties.