Hot-deformed die steels, which are subjected to high impact forces during work, and still maintain high mechanical properties when in contact with high temperatures, require high strength, toughness, and high wear resistance. High tempering stability and thermal fatigue. To use the alloy die steel to meet the requirements. Commonly used grades are: 5CrNiMo, 5CrMnMo, 3Cr2W8V, 4W2CrSiV. It can manufacture hot forging die, flash die, hot shear, and other thermal deformation die.