Welding electrode.
Rods of solid tungsten from 1/16 to 1/8 inch diameter and 3-7 inches long are used as electrodes in certain kinds of arc welding. Claudin Welding Supply kindly donated one when I went there looking for Hafnium.
Source: Claudin Welding Supply
Contributor: Claudin Welding Supply
Acquired: 24 July, 2002
Price: Donated
Size: 7"
Purity: >95%
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