Tungsten's atomic number on the Periodic Table is 74; its atomic symbol is W. The element is highly resistant to bases and acids. Tungsten's melting point of 3,422 degrees Celsius is the highest of any metal. Hard by itself, tungsten becomes even more durable when combined with carbon, as well as nearly scratch resistant.

Uses
Tungsten carbide is used to make cutting tools for metalworking, drilling construction and mining. Its strength makes it a popular material for jewelry, such as rings, bracelets and necklaces. Weapons makers use tungsten carbide to produce armor-piercing ammunition.

Comparisons
Tungsten carbide is a much more versatile material than most other metals. It is four times as hard as titanium and twice as hard as steel. Tungsten carbide is much more heat resistant than both metals as well.

History
Tungsten was discovered in 1758 and first separated from wolframite in 1793. In the 20th century, tungsten carbide became best known as the material for light bulb filaments. Tungsten carbide was widely used in World War II for making weapons.

Sources
Leading producers of tungsten carbide include China and Russia. Canada, Bolivia and the United States have large reserves. Some 30,000 tons of tungsten carbine are produced annually.

Tungsten carbide has a variety of uses due to its unique physical properties. Its molecular formula is WC, and it is very similar in nature to titanium carbide. Since it does contain two different elements, it is classified as a chemical compound. Sometimes, tungsten carbide is just referred to as carbide in everyday speech.

Melting Point
Tungsten carbide has an extremely high melting point at 5,200 degrees Fahrenheit.

Hardness
Tungsten Carbide falls between 8.5 to 9.0 on Moh's hardness scale, making it almost as hard as diamond.

Military Uses
The military makes armor piercing ammunition out of tungsten carbide.

Sports Uses
Ski poles sometimes use tungsten carbide to reduce the impact on the skier's legs.

Everyday Uses
Many jewelers use tungsten carbide to create wedding bands for men.