Tungsten Carbide Powder Physical Properties
Physical Properties of Tungsten Carbide Powder
Melting point 2870 ° C
Boiling point 6000 ° C
Density of 15,63 g / cm ³
Theoretical density 15.55g/cm ³
Molecular weight of 195.85
Microhardness 17800MPa
Elastic modulus 71.0GPa
Compressive strength 56MP
Thermal expansion coefficient 3.84 × 10-6 / ℃
Resistivity of 19.2 × 10-6Ω · cm
It is black hexagonal crystal. Dissolved in nitric acid and hydrofluoric acid mixed acid and aqua regia, insoluble in cold water.
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Tungsten carbide powder (WC) is the main raw material for producing cemented carbide, chemical formula WC. The full name is Wolfram Carbide, tungsten carbide powder is black six square crystal, has metallic luster, hardness is similar to diamond, it is a good conductor of electricity and heat.
Tungsten oxide is a tungstic anhydride and a tungstate product. Tungsten oxide is an oxide of tungsten. It is an important intermediate for the preparation of tungsten from tungsten ore. Tungsten oxide can be used to produce chemical products, such as paint and coatings, petroleum industry catalysts, etc.
Tungsten trioxide exists in the form of hydrate in nature, including mineral forms: wolfram (WO3? H2O), water tungsten oxide (WO3.2H2O) and water tungsten oxide. These minerals are rare and very rare secondary tungsten deposits.
Tungsten is a parent stone element, which mainly exists in the pegmatite and hydrothermal deposits in the form of tungstate; there are about 15 known tungsten ores, of which there are mainly two wolframite and scheelite.