BladeSmithInTraining24 Posted July 9, 2018 Share Posted July 9, 2018 Ok so, im curious, if after hardening you temper for two straight hours at 400°F would it be harder or softer then if you did two one hour cycles (letting cool completely inbetween) at 400°F? I dont feel like the alloy matters but this was a 1095 farriers rasp. Thanks in advance! Quote Link to comment Share on other sites More sharing options...
Joël Mercier Posted July 9, 2018 Share Posted July 9, 2018 That's a good question. I am following. Quote Link to comment Share on other sites More sharing options...
BladeSmithInTraining24 Posted July 9, 2018 Author Share Posted July 9, 2018 6 minutes ago, Joël Mercier said: That's a good question. I am following. Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted July 10, 2018 Share Posted July 10, 2018 no difference Quote Link to comment Share on other sites More sharing options...
BladeSmithInTraining24 Posted July 10, 2018 Author Share Posted July 10, 2018 11 minutes ago, Steve Sells said: no difference Ok thank you! Quote Link to comment Share on other sites More sharing options...
Joël Mercier Posted July 10, 2018 Share Posted July 10, 2018 end of story. Quote Link to comment Share on other sites More sharing options...
BladeSmithInTraining24 Posted July 10, 2018 Author Share Posted July 10, 2018 25 minutes ago, Joël Mercier said: end of story. Quote Link to comment Share on other sites More sharing options...
swedefiddle Posted July 10, 2018 Share Posted July 10, 2018 NOT!!! Most tempering figures are per inch of thickness. You "HAVE TO" do your own testing, to find out what doesn't work. School of "Hard Knocks" is a teacher that you won't forget. If you forget, you shouldn't be playing the game. Don't be afraid of making a junk pile. Expecting someone to answer all your questions is precocious. Enjoy learning, your way. Neil Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted July 10, 2018 Share Posted July 10, 2018 correct, most HT questions and answers are based on thickness, that is why we have a separate section for blades, most dealing with 1/4 inch or less in thickness. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted July 10, 2018 Share Posted July 10, 2018 According to a metallurgist I know multiple cycles are better as each cycle "jars" the crystalline structure a bit knocking a bit more into line. As phase changes are all statistical distributions it's hard to get 100% without going overboard. The temperature of course has to be based on alloy and intended use---you temper a sword the same way as a straight razor and you may end up cutting your own throat!---even if they were forged from the same alloy. Quote Link to comment Share on other sites More sharing options...
BladeSmithInTraining24 Posted July 10, 2018 Author Share Posted July 10, 2018 12 hours ago, swedefiddle said: NOT!!! Most tempering figures are per inch of thickness. You "HAVE TO" do your own testing, to find out what doesn't work. School of "Hard Knocks" is a teacher that you won't forget. If you forget, you shouldn't be playing the game. Don't be afraid of making a junk pile. Expecting someone to answer all your questions is precocious. Enjoy learning, your way. Neil I was curious to know im not asking people to answer all my questions. Quote Link to comment Share on other sites More sharing options...
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