mattjayne9090 Posted May 25, 2008 Share Posted May 25, 2008 ok, i need help. everytime i've tried to clay temper my blades, they cracked.:mad: could someone please tell me something to solve my problem. thank you, Matt Quote Link to comment Share on other sites More sharing options...
tompdw Posted May 25, 2008 Share Posted May 25, 2008 What kind of steel are you using? Do you quench in water or oil? Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted May 25, 2008 Share Posted May 25, 2008 also what temps and are you normalizing before the hardening? is it new or used steel? Quote Link to comment Share on other sites More sharing options...
Jimi Posted May 26, 2008 Share Posted May 26, 2008 if oil are you warming up your oil ? how thin do you take your edge before HT? cya jimi Quote Link to comment Share on other sites More sharing options...
mattjayne9090 Posted May 26, 2008 Author Share Posted May 26, 2008 i am using 1065 1/4" flats, quenching in brine water (room temp), i am quenching at about 1800, and my edge is down to about 1/16". Quote Link to comment Share on other sites More sharing options...
Jmercier Posted May 26, 2008 Share Posted May 26, 2008 For one your temp is far too high for 1065 if you're quenching at 1800f. 1065 should be normalized between 1550 and 1600, and hardened between 1475 and 1550. this should result in around a 62 RC hardness as quenched, which is about as hard as you're going to get 1065 Quote Link to comment Share on other sites More sharing options...
dablacksmith Posted May 26, 2008 Share Posted May 26, 2008 if you keep haveing cracks forming i would switch to oil... it will cool down slower (relativeley) but less chance of stress crack .. also could be problems in forgeing .. if you overheat the steel in forgeing or heat it too long you can get grain growth ..also forgeing too cold can create problems sometimes ... good luck.... Quote Link to comment Share on other sites More sharing options...
matt993fod Posted May 27, 2008 Share Posted May 27, 2008 My personal leaning would be a water quench, at between 1400-1500 degrees F. Quote Link to comment Share on other sites More sharing options...
mattjayne9090 Posted May 27, 2008 Author Share Posted May 27, 2008 thank you everyone! yeah, i was getting really tiered of my work going into the junk ben. thanks, Matt Quote Link to comment Share on other sites More sharing options...
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