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A2 COLD WORK TOOL STEEL
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TEMPERING |
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| Tempering should be carried out immediately following completion of the quenching operation. Heat to within the 175°C / 225°C range and hold at temperature for a minimum period of one hour. Increased toughness will be obtainable by tempering within the 350°C / 400°C range but this will be at the expense of hardness. The tempering curve given provides typical data obtained by cooling from 970°C. |