fisher_norris Posted October 5, 2009 Share Posted October 5, 2009 well im back after a while and i am working on a stump anvil made out of about 4ft of truck axle and i am wondering what to temper it back to. i hardened it to see what i could do with it, it hardened like 4140 so i think pale straw? anybody think differently? Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 5, 2009 Share Posted October 5, 2009 What about a differential temper with the face ending up the hardest point? Quote Link to comment Share on other sites More sharing options...
matt87 Posted October 5, 2009 Share Posted October 5, 2009 No suggestions here as to HT, but could you please post pictures? Cheers! Quote Link to comment Share on other sites More sharing options...
fisher_norris Posted October 5, 2009 Author Share Posted October 5, 2009 What about a differential temper with the face ending up the hardest point? that is what i am going to have to do. harden about 2inches of the end then wrapping a big bar around it to temper the end to pale straw. thanks for the idea as i think this is more feasable then quenching about an inch then letting the heat travel up to the face. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 5, 2009 Share Posted October 5, 2009 Remember that if after tempering you decide it's too hard/brittle you can always retemper to a higher temp without having to reharden. When working with unknown steels for knives I generally work my way to the tempering temp I like in 25-50 deg increments testing after each one. Quote Link to comment Share on other sites More sharing options...
fisher_norris Posted October 5, 2009 Author Share Posted October 5, 2009 yeah i think i may temper it back over time if it chips out, but i think it will not be a problem for light work. thanks for the ideas and help. Quote Link to comment Share on other sites More sharing options...
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