White Cast Iron welding
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  1. #1
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    Default White Cast Iron welding

    Ever weld White Cast? I've been told you cant. Anybody suggestions on rods selection?

    Jay

    www.CandLMachine.com

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    As a place to start, Moldenke in Principles of Iron Founding (1917) gives the composition as:

    Silicon: below 0.75%
    Manganese: above 0.20%
    Sulphur: below 0.25%
    Phosphorus: below 0.75%
    Total carbon: above 2.50%

    He notes there is no graphitic carbon due to low silicon. (that's why its white!)

    I.E., you are trying to weld something that is at least 2.50% carbon, and possibly as high as 3.75% carbon - all chemically combined.

    John Oder

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    Default Cast welding

    Try going to locknstitch.com and see what they recommend.

  5. #5
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    I want to watch somebody drill white iron for a lockstitch repair. Last time I had to drill white iron, it was just a layer where some past bonehead had burnt a nickel rod into my lathe apron casting to repair a crack (which didn't work) with no preheat or proper cooling. This was maybe a 1/8" thick zone, which was like drilling volcanic basalt. I burnt up three 1/4" drill bits getting through that little area, after which, it was back to typical soft sweet cast iron. I really doubt you could lockstitch for this reason alone, unless you could get the part in a mill and use a carbide endmill or solid carbide drill(s).

    I can't imagine how you could get a good weld in white iron, but I'm game to learn something.

  6. #6
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    Cool

    I would like to try welding some for something to do. I know i push Crown Alloys 255 rod but its the only Crown cast iron rod i can find the words for "ALL Cast Iron" so it may work, just my thought...Bob
    http://www.crownalloys.com/page10.pdf

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    i give up
    what is "white cast"

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    wippin' boy, the surface of the bed ways on your L&S are white iron.

  10. #10
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    Its got over 2 1/2% silicon - wonder how it gets to be white.

    At least white all the way through.


    John Oder

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    Update so far,

    I purchased from Muggyweld.com and I have sample rods coming from 2 other sources. One also is sending brassing rod. I'll upadate and provide pics when the pieces come in.

    Jay

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    Default

    then my answer to the original question would have to be braze it


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