Introduction of mold steel 1.2379 steel

     The mold steel 1.2379 steel is a high-carbon and high-chromium alloy tool steel, has high hardness and wear resistance after heat treatment, and has a strong hardenability, good dimensional stability. The 1.2379 mold steel is suitable to make high precision and long life of cold work die and thermosetting molding plastic mold.
     The characteristics of mold steel 1.2379 steel are: pure steel vacuum degassing refining process. Ball annealing softening treatment, good cutting performance. Add strengthening elements vanadium, molybdenum, extremely excellent abrasion resistance.
     The 1.2379 steel uses: Sheet thickness no greater than 2MM, efficient blanking die, punch die and pressure die carrier. Scissors, inserts, woodworking blades. Thread rolling die and wear slider. Cold heading die, thermosetting resin molding die. Deep drawing molding die, cold extrusion dies.
     Quenched and tempered to a hardness of 63HRC. Its physical properties at room temperature and high temperature:
1) Temperature 20℃, the density 7700g/cm, the thermal conductivity of 20.0W/(m-K), the elastic modulus 210000MPa.
2) When the temperature of 200℃, the density 7650g/cm, linear expansion coefficient (20℃) 12.2×10K, thermal conductivity: 21.0W/(m-K), elastic moduli 200000MPa.
3) Temperature 400℃, the density 7600g/cm, the thermal conductivity of 23.0W/(m-K), the elastic modulus 180000MPa.

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