Types of hard metal

Hard metals are made up of a composite material of tungsten carbide (70-95%) and
a metalic binder, usually cobalt (30-5%). The tungsten is usually produced through
the scheelite or wolframite reduction.

Once obtained the tungsten, it is carburized with the addition of carbon at a high temperature in order to obtain tungsten carbide. Its granulometry can go from
a fraction of micron up to 10 microns and more.

Dosing adequately cobalt percentages and tungsten granulometry different degrees
are obtained in order to be used for the application in several sectors of mechanical industry, extractive industry, timber industry, etc…

Other types of hard metal degrees have recently been introduced with the addition
of other carbides, the most used are titanum carbide and tanatalum carbide. These degrees are basically used for tool production and chip removal.