Tungsten carbide-Description

Tungsten carbide is a very hard, very dense and highly resistant material.

It scores 9.0 on the Mohs scale, which means that almost no other material can scratch it apart from certain special alloys and diamond.

It has great resistance to pressure (Vickers hardness number 2242), and impact. But it does not resist elongation very well, with a Young module of 550 GPa. Chemically, it is very unreactive, and not attacked by acids or bases, with the exception of nitric acid (HNO3) and hydrofluoric acid (HF).

It has a hexagonal-type crystalline structure, which makes it very compact, and therefore very dense.