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  1. Filipek144

    Secondary Hardness

    To be more understandable, I will describe the situation in which this question appeared. I work at a company dealing with heat treatment. The customers always deliver us a part (or several parts) with a note which which informs what kind of material it is and what they want. These iformations...
  2. Filipek144

    Secondary Hardness

    Hello engineers and scientists! Let’s say that I want to achive max hardness of D2 steel after 1050°C. The easiest way is to temper it twice at ~525°C and I should get 63-64 HRC. What if I have already tempered it at 500°C and I couldn’t get more then 61 HRC and I decided to temper it then at...

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