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High temperature tempering is when we use temperatures higher than 500 °C. This is used for carbon construction steels, hot work tool steels and high-speed steels. Tempering at high temperature results in an increase in toughness, the hardness will vary between 300HB and 65HRC depending on the mater
High temperature tempering is when we use temperatures higher than 500 °C. This is used for carbon construction steels, hot work tool steels and high-speed steels. Tempering at high temperature results in an increase in toughness, the hardness will vary between 300HB and 65HRC depending on the mater