About mold steel P20 steel

     P20 steel is a type of plastic mold steel, P20 is the United States grades, which corresponds to Chinese brands: 3Cr2Mo; Germany Grade: 1.2311. Steel types: pre-hardened plastic mold steel. Mold steel P20 steel is suitable for the production of plastic mold and die casting mold material of low melting point metal. This steel has good machinability and mirror-polished performance.
     Mold steel P20 steel chemical composition: Carbon: 0.38; Manganese: 1.30; Chromium: 1.85; Mo: 0.40; sulfur: 0.008.
     P20 steel hardness uniform, with good polished performance and photoetching performance, excellent processing performance. Pure steel vacuum degassing refining process, the requirements for polishing or etch processing plastic mold. Pre hardening treatment, without the heat treatment, can be directly used in mold processing, shorten the construction period. After forging rolling processing, compact structure, 100% ultrasonic inspection, no air hole and needle eye.

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