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  1. #1
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    5,559

    Default Information on making a lead hardness tester.

    I am a black powder muzzle loader shooter.
    As such, I am constantly seeking pure lead to cast round balls.
    It can be hard to tell at times with alloys about the place, the marking of pure lead with a thumbnail,not withstanding.
    Therefore I seek a hardness tester.

    Too hard to import a manufactured one at the moment, so I am hoping to make one.
    If you have heard of a homemade one and can direct me to an internet article, I would be obliged.

    I already have one from the Cast Boolits Forum using the drill press and bathroom scales but this type is not suitable when you are at the scrap dealers.

    Thanks

    Grahame

  2. #2
    Join Date
    Sep 2005
    Location
    Bendigo
    Age
    56
    Posts
    146

    Default

    Well here is the instructions for a commercial unit.
    https://leeprecision.com/files/instruct/LT2140.pdf

    From the instructions it gives you a reasonable reference for tip size and angle from there it should be a matter of determining a spring pressure needed for the indenter and having a reference source of pure lead to get the impression size.

    Of course it won’t give you the BHN value unless you have a reference source to compare against but it will compare against a known product.

  3. #3
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    5,559

    Default

    Thank you droog,

  4. #4
    Join Date
    Jan 2016
    Location
    Wodonga Vic
    Age
    35
    Posts
    467

    Default

    Shout out if you need something referenced, I have access to vickers, rockwell and brinell testing gear.

  5. #5
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    5,559

    Default

    Quote Originally Posted by NedsHead View Post
    Shout out if you need something referenced,
    Thanks Mate.

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