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       Tungsten is the 74th element in the periodic table. It was used as a filament in an incandescent bulb in the early days, but other than that, pure metal tungsten does not seem to have many uses, but its compound-the application range of tungsten carbide It is very wide, ranging from tungsten carbide spraying to tungsten carbide alloy, etc., used in various occasions. So what are the differences between tungsten and tungsten carbide that will cause the application scope of the two to be different?




The biggest feature of tungsten is high temperature resistance, it is the metal with the highest melting point, up to 3370℃, and it also has ultra-high density, reaching 19.25 g / cm 3, but the disadvantages of metal tungsten are also obvious, especially in the case of impure , Its ductility is low, it is easy to break, and it is easy to break at room temperature. Although pure tungsten is not fragile, the price of pure tungsten is very expensive, except for some very demanding special occasions, basically everyone can't use pure tungsten.



As a compound of metallic tungsten, tungsten carbide is made by placing tungsten powder, carbon and hydrogen at a high temperature of 1400-1600°C. Its stiffness is 2-3 times that of steel, and its compressive strength is lower than that of steel. Ranked first among all alloys.



In addition, tungsten carbide also has extremely high resistance to deformation, and can maintain its own stability under ultra-high temperature and high and low temperature.



When in the form of a single carbon compound, the hardness of tungsten carbide can compete with diamond, and it is the hardest material known.



Tungsten carbide has excellent impact resistance, toughness and resistance to scratches/scratches/erosion, and its service life under extreme conditions is 100 times that of steel.



It is precisely because of these excellent characteristics of tungsten carbide that it can be widely used. The above are some of the differences between tungsten and tungsten carbide.

Wococarbide

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