Hot-die steels are used to manufacture molds that make heated solid metal or liquid metal formed under pressure.
Mold is divided into hot forging dies, hot-top forging die, hot extrusion die and die-casting mold, the corresponding geothermal as mold steel, hot-forged die steel, hot-top forged die steel, hot extrusion die steel, die-casting die steel. Commonly used hot die steel has 5CrNiMo, 3Cr2W8V, H13 and so on. H13 Steel is a widely used hot-die steel at home and abroad.