(Swedish, tung and stan, heavy stone; original name was Wolfram) Discovered in 1783 by d'Elhujar. Has the highest melting point and the lowest vapor pressure of any metal. Found in wolframite ore. China produces 75 % of the world's tungsten.
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transition metal, hard, gray, brittle, resistant to corrosion
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filaments for lamps and light bulbs, additive to iron to increase strength, TV tubes (electron tubes), x-ray targets, heating elements, making high-speed steel for cutting tools