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Old 05-08-2006, 12:33   #47
Bill Harsey
Bladesmith to the Quiet Professionals
 
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Join Date: Feb 2004
Location: Oregon, Land of the Silver Grey Sunsets
Posts: 3,886
Quote:
Originally Posted by CPTAUSRET
Bill:

This process. http://www.nitrofreeze.com/

Terry
Terry, Much to this.
I always use liquid nitrogen (-320 F) as an integral step during the heat treat of the steels I use here, so does Chris Reeve. This is critical to the ultimate performance of the blade steels we use but is only good if integrated at the correct time during the hardening and tempering process.

There is much discussion about how much good a cryogenic treatment does after the part has concluded it's heat treat and has been made into a finished part.
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