Thermal properties

Hard metal shows quite a low linear expansion coefficient.

Almost a half of that of steel. An average degree of hard metal with 8% of cobalt has a linear expansion of 5*
10-6/°C along a temperature interval that goes from 20 to 400°C.

The thermal conductivity is aproximately twice that of non-alloy steel and a third
of that of copper. T.

he specific thermal capacity of a generic hard metal degree is around
150-350 J/(Kg*°C),a half of that of non-alloy steel.