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Characteristics of cemented carbide

source: This station Time:2019-03-19
  (1) High hardness and red hardness
  The hardness of cemented carbide can reach 86 ~ 93HRA at room temperature, which is equivalent to 69 ~ 81hrc.  It can maintain high hardness and excellent wear resistance at 900 ~ 1000 ºC.  Compared with high speed tool steel, the cutting speed is 4 ~ 7 times higher, the service life is 5 ~ 80 times longer.
  (2) Good corrosion resistance and oxidation resistance
  Generally, it can resist the corrosion of atmosphere, acid and alkali, and is not easy to be oxidized.  Grades with Nickel and Chromium binders are very resistant to acidic solutions.
  (3) The coefficient of linear expansion is small

  During working, the shape and size of carbide is stable.

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