Hot work die steel is a kind of steel used in the manufacture of hot work dies. Firstly, hot work die steels have high thermoplasticity and plasticity and can be hot worked at high temperatures, such as hot rolling, forging and die heat treatment. Secondly, hot work die steels have good hardening properties and can be heat treated to achieve the required hardness and strength. Thirdly, hot work die steel has high temperature stability. Fourthly, hot work die steel has good machinability and machinability during processing and can be used for drilling, milling, turning and other conventional machining operations. Finally, hot work die steel usually have good corrosion resistance, and can resist chemical effects such as corrosion and oxidation.

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