Tungsten carbide

Tungsten carbide is roughly three times stiffer than steel, with a Young?s modulus of approximately 550 GPa, and is much denser than steel or titanium. It is comparable with corundum or sapphire in hardness and can only be polished and finished with abrasives of superior hardness such as cubic boron nitride and diamond amongst others, in the form of powder, wheels, and compounds.

For more information on Tungsten carbide talk to Dymet Alloys – Division of Corewire