Flats - Rounds - Squares - Hollowbar
Standard Sizes - Non-Standard Sizes - Metric Sizes
Outstanding wear resistance.
Optimum size stability.
Deep hardening.
TREATMENT |
TEMPERATURE RANGE |
COOLING/QUENCHING |
NOTES |
FORGING |
2050-2100° F |
Slow. |
Cool slowly in dry sand or in other insulating media. |
ANNEALING |
1600-1650° F |
Cool slowly at a rate of 25° F per hour to 1000° F. |
Protect against surface decarburization using controlled atmosphere or by pack-annealing. |
STRESS RELIEVING |
1150-1300° F |
Cool slowly. |
Stress relieve after rough machining |
PREHEATING |
1400-1500° F |
|
Preheat time in furnace is ¾ Hr. per inch of thickness. Heating up to temperature as slow as possible. |
HARDENING |
1900-2000° F |
In air. |
Allow to cool to 125-150° F before tempering. Soak time is 15 minutes per inch of thickness. Minimum of 30 minutes. |
TEMPERING |
(See Chart) |
|
Complete equalization of temperature throughout the tool is essential for good results. Double temper. Recommended temperature is 400-1000° F. Temper 1 hour per inch of thickness, 2 hours minimum. |