Need heat treat specs for Cruwear

http://www.crucibleservice.com/eselector/prodbyapp/tooldie/cruweart.html

I would say that if you want to HT a steel which the manufacturer is kind enough to provide guidance for the hardening and tempering of, you should probably start with the guidance that manufacturer gives you. Then, once you have some results, you can "fine tune" the process a bit to give you the results you're after in a way that works in your shop.

All in all, this one looks like a fairly tough nut to crack. Higher austenizing temps and longer soak times, potential for runaway oxidation and decarb, Very high tempering temps, possible secondary hardening, and the air hardening nature means fairly tight controls are required to get it good and soft to file, sand, grind, drill, or do much of anything else on.

On the other hand, it's fairly tough, can get hard as all get out, and resists wear decently. If you've the tools, equipment, time, and patience to make a blade out of the stuff, and heat treat it well, you could have a great knife on your hands. I'd keep it under sword length, or temper higher for more toughness, but coaxed properly, it could be a nice cutter.
 
Craig, one thing I'd suggest is take this stuff to very near finished dimensions and grit, double bag it and plate quench. It's a royal PITA to finish.
 
Thanks Dan and Mike.

And Mike....yes! This stuff is a royal pain in the behind to finish! I have always taken it to near finish prior to heat treat. This is the first time I will be HT'ing it myself. The double bag is an excellent idea.

It does make a good cutter though...it will be a personal knife. I'll post pictures later on.

Craig
 
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