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Tempering BG-42

G

Gene

Joined
Oct 2, 1998
Messages
1,781
Hey guys. I wonder if you could help me out and tell me what temperature you use in your ovens to temper BG-42 stainless? Any help you can provide will be greatly appreciated.
 
Gene -
Harden BG-42 at 1975 degrees for 1 hour then air cool in moving air (fan). Stress relieve at 475 degrees for 1 hour then air cool. Freeze to -107 degrees with CO2 or -305 degrees with liquid nitrogen. Then warm to room temperature before tempering. Temper at 925 degrees for 1-1/2 hours. I get RC 62-63 with this.
I would suggest sanding to 600 grit before heat treat.
Anything else I can help with just give me a shout.
Hope this helps.

------------------
Gene Osborn
Center Cross Metal Works
I Carry My Crosses for Christ to Give any Glory to God.
 
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