[TheForge] Forging Tungston?

[James Binnion]

>> 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