Tungsten is a rare metal with high melting point in nature, which has the properties of high density, high hardness, high wear resistance, high conductivity high temperature and high strength. Tungsten metal is a silvery white and shiny metal with high melting point but low vapor pressure, low evaporation rate and relatively stable chemical properties.
Tungsten is a base metal with a steel gray to white transition metal. In nature, it mostly exists in the form of compounds with other elements, rather than alone.
The chemical properties of tungsten are very stable. It does not react with air and water at room temperature. When it is not heated, any concentration of hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid and aqua regia do not work on tungsten. When the temperature rises to 80-100 centigrade, among the above acids, except hydrofluoric acid, other acids have a weak effect on tungsten.
At room temperature, tungsten can be rapidly dissolved in the mixed acid of hydrofluoric acid and concentrated nitric acid, but it does not work in alkali solution. In the presence of air, molten alkali can oxidize tungsten into tungstate. In the presence of oxidants (NaNO3, NaNO2, KClO3, PbO2), the reaction to form tungstate is more violent. It can combine with oxygen, fluorine, chlorine, bromine, iodine, carbon, nitrogen and sulfur at high temperature, but not with hydrogenation.
Raw ore of Wolframite
Tungsten Heavy Alloy is a kind of tungsten products, which mainly uses the high-density characteristics of tungsten itself. Tungsten Heavy Alloy Cube (Block) is an important application of tungsten in the military defense. Tungsten Heavy Alloy Cubes of various sizes such as 1.5x1.5x1.5 ~ 5.5x5.5x5.5 produced by China Tungsten Online are MIL & ATMS standards. Of course, China Tungsten also accept customized services for any Tungsten Heavy Alloy Cube whose weight is no more than 1,500kgs. The applications from aerospace and submarine counterweights, military and civilian bullets to Meta currency (Crypto) tokens and any other density, weight, surface and overall dimensions you want.
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