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Heat Treating Various Steels


D-2 Tool Steel -

Preheat thoroughly at 1400/1500F and hold for 30 minutes.

Raise heat to 1850 and hold until uniformly heated.

Soak at temperature for 45 to 60 minutes.

Tempering: Temper at 400F for one hour, two times.


440C Stainless -

Preheat thoroughly at 1400/1500F and hold for 30 minutes.

Raise heat to 1950 F and hold for one hour.

Air quench at room temperature. Subzero freeze at 100 below 0.

Tempering: Temper at 400F for one hour, two times


ATS-34 Stainless -

Preheat thoroughly at 1400/1500F and hold for 30 minutes.

Raise heat to 1950/1975F and hold for one hour.

Air quench at room temperature. Subzero freeze at 100 below 0.

Tempering: Temper at 950F for one hour, two times


0-1 Tool Steel -

Preheat thoroughly at 1200F. Then heat to 1450F and hold until heated through.

Quench in 125F quenching oil..

Tempering: Temper at 400F.


410 Stainless Steel -

Preheat thoroughly at 1400/1500F and hold for 30 minutes.

Raise heat to 1850 and hold for 30 minutes.

Air quench at room temperature.

Tempering: Temper at 500F for two hours, two times.