Tungsten carbide is chemically stable, insoluble in strong acids such as water, hydrochloric acid and sulfuric acid, but readily soluble in a mixture of nitric acid-hydrofluoric acid. Pure tungsten carbide is fragile, but its brittleness can be reduced by doping a small amount of titanium, cobalt and other metals.

Tungsten carbide has a wide range of applications in many occasions due to its excellent properties such as high hardness, high wear resistance and high corrosion resistance. Tungsten carbide is the main raw material for manufacturing tungsten carbide tools (such as drills, milling cutters, turning tools, etc.). These tools play a key role in metal processing, wood processing, stone processing and other industries, and are able to cut a variety of materials efficiently and accurately. In mold manufacturing, tungsten carbide is also often used to make mold cores, punches, mold inserts, etc. to improve the wear resistance and service life of molds.

Tungsten carbide is used in the manufacture of a variety of wear-resistant parts and components such as bearings, sealing rings, and nozzles. These parts maintain long service life and stable performance when operating at high speeds, high temperatures, high pressures or in corrosive environments. Tungsten carbide coatings and films are widely used in mechanical parts, electronic components, medical devices and other fields due to their excellent wear resistance, corrosion resistance and high temperature stability. These coatings and films can be prepared by chemical vapor deposition, physical vapor deposition and other methods to improve the surface properties of the base material.

In the aerospace field, tungsten carbide is used to manufacture high-temperature components such as nozzles for jet engines and blades for gas turbines. These components are required to operate at high temperatures, high speeds and in harsh environments, and tungsten carbide's high melting point and excellent thermal stability make it an ideal choice. Tungsten carbide is also used in the manufacture of ceramic cutting tools, abrasives and grinding tools. In ceramic processing, glass processing, stone processing and other industries, tungsten carbide tools are favored for their high hardness and wear resistance.

Tungsten carbide is usually prepared by carbothermal reduction, powder metallurgy or chemical vapor deposition. Among them, powder metallurgy is one of the most commonly used methods, which is made by mixing tungsten and carbon powders, pressing them into shape, and then sintering them at high temperatures. This method is not only a mature process, but also capable of producing tungsten carbide products with complex shapes and excellent performance.