Die steel is the steel used to make molds such as cold stamping dies, hot forging dies, and die-casting dies. Used for forging, stamping, cutting, die-casting, etc. Due to the different purposes of various molds and complex working conditions, the steel used for molds should have high hardness, strength, and wear resistance according to the working conditions of the molds made by it. Toughness, and high hardenability, hardenability and other process properties.