[TheForge] Forging Tungston?

[peter fels & phoebe palmer]

Thanks Jim.

On 10/24/2010 11:11 PM, James Binnion wrote:
>>>  From this i infer that the TIG tungstens are all alloys, not just the
>>> one's marked as so.
>>> Seeing as they are brittle.
> Very pure tungsten is workable but to do much forming it has to be
> quite hot (over 2000 F) . At room temperature it is liable to break if
> bent too much. Even slight levels of impurities make it significantly
> more brittle, most TIG electrodes are alloyed with metallic oxides and
> therefore are brittle. The exception is the pure tungsten rod used for
> aluminum welding, it is more ductile.
>
>
> James Binnion
> jbin at well.com
>
>
>
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