0-1 Oil Hardening Tool Steel
Flats - Rounds - Squares - Hollowbar
Standard Sizes - Non-Standard Sizes - Metric Sizes
TREATMENT |
TEMPERATURE RANGE |
COOLING/QUENCHING |
NOTES |
FORGING |
1825-1925° F |
Lime or ashes. |
Heavy sizes should be left to cool in vermiculite or in other insulating media. |
ANNEALING |
1425-1475° F |
Cool slowly in the furnace at a maximum rate of 35° F per hour to approximately 1110° F. |
Protect against surface decarburization using controlled atmosphere or by pack-annealing. |
STRESS RELIEVING |
1025-1200° F |
Cool slowly in furnace to 930° F. Then in air. |
Stress relieve after rough machining |
PREHEATING |
1200-1250° F |
|
Preheat time in furnace is ¾ Hr. per inch of thickness. Heating up to temperature as slow as possible. |
HARDENING |
1450-1500° F |
In oil. |
Remove all forging or rolling skin prior to hardening. Temper immediately after hardening. Allow to cool to 125-150° F before tempering. |
TEMPERING |
(See Chart) |
|
Complete equalization of temperature throughout the tools is essential for good results. Recommended temperature is 350-500° F. |
Data is typical and should not be construed as actual values for any catagory.
Applications and technical information require engineers and tool designers to exercise independent judgement.