Electric and magnetic properties

Hard metal has a low electrical resistivity and it is usually 20 µΩ/cm. As a
consequence of low resistivity, hard metal is a good conductor because of its
conductivity of about 10% less than that of copper.

Due to its nickel or cobalt content, hard metal also presents ferromagnetic properties
at ambient temperature. Therefore Curie temperature is included between 950
and 1050°C, depending on the degree composition.

Magnetic permeability is really low and it is function of cobalt content. A typical
value is included between 2 and 12 when the value of the void is 1.