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Question: Which metal has the highest melting point and is commonly used in light bulb filaments?

Answer: Of all metals in pure form, tungsten has the highest melting point (3,422 C, 6,192 F). Tungsten's many alloys have numerous applications, most notably in incandescent light bulb filaments, X-ray tubes (as both the filament and target), electrodes in TIG welding, and superalloys.


 

Aluminium
9%
Tungsten
63%
Lead
6%
Manganese
19%
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December 20, 1879
Thomas Edison privately demonstrated his incandescent light at Menlo Park, N.J.
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