Tungsten is a non-ferrous metal. There are two categories according to their color and properties: ferrous metals and non-ferrous metals. Ferrous metals mainly refer to iron, manganese, chromium and their alloys, such as steel, pig iron, ferroalloy, cast iron, etc.
Metals other than ferrous metals are called non-ferrous metals. Tungsten belongs to the category of non-ferrous metals. The strength and hardness of non-ferrous alloys are generally higher than that of ferrous metals, the resistance is greater than that of ferrous metals, and the resistance temperature coefficient is small. They have good comprehensive mechanical properties. Therefore, as a non-ferrous metal, tungsten has very high strength and hardness. Due to this characteristic, tungsten carbide with high hardness and strong wear resistance is widely used in cutting tools and mining tools.
Tungsten filament bulb made of metal tungsten after continuous wire drawing and thinning was once one of the most well-known major applications of tungsten.
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