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Thread: Steel tempering chart - image

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    Jon
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    Supporting Member Toolmaker51's Avatar
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    Toolmaker51's Tools
    Here is one pic destined to printing out more than many others at HMT.net.
    A lot of information beyond just colors indicating temper levels.
    Last edited by Toolmaker51; 11-24-2019 at 09:52 AM.
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    Supporting Member Frank S's Avatar
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    Frank S's Tools
    I remember my first attempt at hardening some cable guide thimbles. No Idea what the steel was they had been made out of they came to me already cut to length all I had to do was machine a slight relief bevel to one end then heat quench and then temper.
    So I heated one up then quenched it then picked it up to heat it again but dropped it on the floor it shattered like so much glass. Oops I'd say I had that one a little too hot before quenching. the rest of them I allowed to cool just a little before quenching then heated and tempered them all was good. But I'll never forget the look on the wife's face when she saw the dozen pieces of that shattered specimen
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    Supporting Member mklotz's Avatar
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    mklotz's Tools
    Quote Originally Posted by Toolmaker51 View Post
    Here is one pic destined to printing out more than many others at HMT.net.
    A lot of information beyond just colors indicating temper levels.
    Lots of temperature color charts on the interweb...

    SMEX - Steel Temperature Chart

    https://www.engineeringtoolbox.com/t...el-d_1530.html

    HEAT-COLORS-for-Blacksmiths

    Heat chart for blacksmithing


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