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How To vacuum heat treating damasteel?

OK so after all the good info gathered does this sound like the ideal way to heat treat 1.70mm blades?

And is there any potential downside if using 15 minute austenizing instead of 5 minute recommended by the damasteel sheet?

1.Foil wrap blade with high temp foil
2.Stress relieve at 650 Celsius for 2 hr. Oven cool to 425 C Remove and air cool to ambient.
3.Preheat oven to 760 C
4.Place blade in preheated oven and soak for 10 minutes to equalize
5.Ramp at 9999 to 1080 C
6.Once the oven has reached 1080 celsius, austenize for 15 minutes
7. Remove the blades from the oven, let cool
8. temper at 190 celsius for 2 hours
9. cool to room temperature
10. temper again at 190 celsius for 2 hours
 
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