What is Tungsten(3)

Tungsten has been used without ill effects as a component in US food and Drug Administration (FDA)-approved medical implants such as orthopedic hardware and tungsten coils for heart defects. Numerous countries have used tungsten and various tungsten alloy munitions for a number of years because of its high density and ability to penetrate armor. Initially, tungsten carbide was used in munitions, but newer composites such as tungsten/nickel/cobalt and tungsten/nickel/iron have superior properties.