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Tungsten was invented in 1781 by Swedish chemist Carl Scheele. Tungsten means «heavy stone» in translation from Swedish. Tungsten heads a group of the most refractory metals. That is why it is used in manufacture of essential details. By refractory quality, only carbon goes before it. Tungsten does not react with chemical elements. It is used in metallurgic industry due to its refractory properties. By density, tungsten is identical to gold: 19.30 g/cm³ VS 19.32 g/cm³. After defining of tungsten melting point (3387−3420°С), this metal had being used for manufacture of glowing filaments in lamps, heaters, electron-beam tubes.
|Temperature of characteristic receiving in °С||20°С|
|Coefficient of linear thermal expansion α [1/degree]||43x10−6|
|Ultimate tensile strength kg/mm2||35|
|Specific heat at 20 °C [J/(kg/deg)]||0.134|
|Heat conductivity K [V/m*K]||300.173|
|Specific electric resistance R Оhm-mm2/m||0.054|
Tungsten is often used in modern techniques in a pure state. Steel that contains 12% of tungsten is much-requested in the capacity of material for tools that are intended to be used for lathe work. The main demerits of this refractory metal are a difficulty of obtaining it in pure state, heavy weight, and complexity of processing.
Tungsten mill-products supplier
«Auremo» company offers to buy products for affordable price. Tungsten mill-products price forms according to international cost of metal-roll without including other expenses. If you buy goods by wholesale, you will be given special discounts. Supplies are implemented directly from stock. It gives a vivid choice of products for customers and significant saving in storages and premises. Tungsten WA mill-products are always in stock. You can buy them for the best tungsten mill-products price from supplier. We invite you to a partnership. Price is privileged for wholesale buyers. Buy tungsten mill-products right now.
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Huge range of products is presented in stock of «Auremo» tungsten mill-products supplier. All products are certificated. Quality is guaranteed by rigorous technology compliance of a manufacture. Buy tungsten mill-products by connecting the nearest office. Phone numbers, e-mail addresses of the closest company’s offices are noted in section «Contacts». Order a service «Call-back». Our managers are always ready to lend a knowledgeable assistance. If a required type of product is absent, we can manufacture it in the off-standard sizes by individual order.