Tungsten balls are widely used in fields such as water meters, flow meters, and pen making.
Introduction to Features
Compared to lead, tungsten alloy balls are non-toxic, pollution-free, and safer. The high density of tungsten alloys allows tungsten alloy balls to maintain their shape even in extreme environments. The density of depleted uranium is similar to that of tungsten alloys, but it is radioactive and requires special permission for radioactive substances, making its use difficult and costly.
Chemical formula WC. The full name is Wolfram Carbide, which is a black hexagonal crystal with metallic luster and hardness similar to diamond. It is a good conductor of electricity and heat. Melting point 2870 ℃, boiling point 6000 ℃, relative density 15.63 (18 ℃).
Tungsten carbide is insoluble in water, hydrochloric acid, and sulfuric acid, but is easily soluble in a mixed acid of nitric acid and hydrofluoric acid. Pure tungsten carbide is fragile, and adding a small amount of titanium, cobalt, and other metals can reduce brittleness. Tungsten carbide, used as a steel cutting tool, is often added with titanium carbide, tantalum carbide, or their mixture to improve its explosion resistance. The chemical properties of tungsten carbide are stable. In tungsten carbide, carbon atoms are embedded in the gaps of the tungsten metal lattice without damaging the original metal lattice, forming a interstitial solid solution, hence also known as interstitial (or insertion) compounds.