D2 tool steel is extremely sensitive to overheating during hardening – do not overheat.Pre heat slowly to 750780°C and soak. Continue heating to the final hardening temperature of 10001030°C and allow the component to equalise. Quench in oil or cool in air.Heat uniformly and thoroughly to the desired temperature and hold for 25 minutes per cm of thickness. D2 can be double tempering at approximately 15°C below the first tempering, after intermediate cooling to room temperature.

D2 tool steel is extremely sensitive to overheating during hardening – do not overheat.Pre heat slowly to 750780°C and soak. Continue heating to the final hardening temperature of 10001030°C and allow the component to equalise. Quench in oil or cool in air.Heat uniformly and thoroughly to the desired temperature and hold for 25 minutes per cm of thickness. D2 can be double tempering at approximately 15°C below the first tempering, after intermediate cooling to room temperature.