Let us talk about tungsten introduction.
Tungsten occurs in wolframite, scheelite, huebnertie and ferberite. California, Colorado, South Korea, Bolivia, Russia and Portugal are some important countries which deposits tungsten. China is reported to own about 75% of the global tungsten resources.

Pure tungsten is a steel-gray to tin-white metal. Very pure tungsten can be cut, forged, spun, drawn and extruded. Tungsten has the highest melting point among all metals and has high tensile strength. Tungsten can be oxidized in the air. So it is necessary to put tungsten elevated temperatures to protect tungsten. In addition, tungsten has excellent corrosion resistance and thermal expansion, which makes tungsten be useful for glass-to-metal seals.

Tungsten and tungsten alloys are extensively used as filaments for electric lamps, electron and television tubes. Tungsten can be used in metal evaporation work and can be applied as electrical contact points for automobile distributors. What’s more, tungsten also can be used as windings and heating elements for electrical furnaces. Tungsten has numerous spacecraft and high-temperature applications.

Hope this tungsten introduction is useful to you to know about tungsten.
As an expert in tungsten production for more than 22 years, Zhengzhou Sanhui Co., Ltd has got the experience to support all the projects we take on for our numerous clients. We provide our QC team with detailed instructions for each stage of production. Adherence to ISO 9001:2008 guidelines, along with advanced equipment and high-quality materials, assists us in keeping quality as high as possible.
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