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  1. 28th April 2012, 06:00 PM #1
    Nurgle
    Nurgle is offline Member
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    Default Metal that melts in hot water.?

    was watching an Australian WW2 film on Australian Aircraft Production.

    they showed a very soft metal that melted in boiling water and flowed like solder.

    they were using it to bend metal tubing, small size, on Wirraway aircraft.

    poured it molten into the tubes, then bent them, then put the tubes in hot ater baths, and poured out the metal after it was bent.

    (actually saw my dad there in a quick flash frame)

    does any one know the name of the metal, and if it is still available.

    regards

    Sandy
  2. 28th April 2012 06:00 PM # ADS
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  3. 28th April 2012, 06:23 PM #2
    snowyskiesau
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    Bismuth based alloys melt at low temperatures.
    Look up Cerrobend for a commercially available product.
    Geoff
    The view from home
  4. 28th April 2012, 06:44 PM #3
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    Master Splinter
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    Gallium melts at 30 degrees.

    Buy Gallium, Sodium, Potassium, Strontium, Cesium, and Magnesium Metal
  5. 28th April 2012, 07:06 PM #4
    azzrock
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    Default

    they use this for bending steam pipes as well
  6. 28th April 2012, 07:09 PM #5
    witch1
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    cerrobend was the one we used at qantas in the good old days, also used to make teaspoons for leaving on the bench at tea-time to create a "stir"
    witch1
  7. 28th April 2012, 09:20 PM #6
    Graziano
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    Some of the older recipes for plumber's pipe bending metal had cadmium in them which made them toxic. Indium was also a low melting point alloy ingredient, but prices for it have skyrocketed, it's also used to make a solder that sticks to glass.
  8. 28th April 2012, 09:36 PM #7
    GZBMW
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    Default Wood's Metal

    Wood's metal - Wikipedia, the free encyclopedia

    Like Witch1 said, in DSTO we had access to all sorts of nice stuff and to 'stir' up a few of the oldest metallurgists, we made teaspoons of Wood's metal and substituted them for the regular teaspoons. The look on their faces were precious when their tea dissolved the spoon.
  9. 29th April 2012, 05:36 PM #8
    Nurgle
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    thanks all for the info. greatly appreciated...

    (i am now to hard of hearing, and they dont put captions on such shows)

    regards

    Sandy
  10. 30th April 2012, 09:04 AM #9
    eskimo
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    Quote Originally Posted by GZBMW View Post
    Wood's metal - Wikipedia, the free encyclopedia

    Like Witch1 said, in DSTO we had access to all sorts of nice stuff and to 'stir' up a few of the oldest metallurgists, we made teaspoons of Wood's metal and substituted them for the regular teaspoons. The look on their faces were precious when their tea dissolved the spoon.

    you rotten bugga's...hope you havent killed anyone...but tis a good trick

    extract from your wiki link
    Wood's metal is toxic because it contains lead and cadmium, and therefore contact with the bare skin is thought to be harmful, especially in the molten state. Vapour from cadmium-containing alloys is also known to pose a danger to humans. Cadmium poisoning carries the risk of cancer, anosmia (loss of sense of smell), and damage to the liver, kidneys, nerves, bones, and respiratory system
  11. 30th April 2012, 11:08 AM #10
    bollie7
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    Quote Originally Posted by eskimo View Post
    and damage to the liver, kidneys, nerves, bones, and respiratory system
    Sounds almost like alcohol.

    bollie7
  12. 30th April 2012, 03:39 PM #11
    Bryan
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    Just the thing to spice up your morning cuppa.
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