Magnetic materials can be classified based on their permeability number.
Diamagnetic substances 0 < µr < 1 Paramagnetic substances μr > 1 Ferromagnetic substances μr ≫ 1
Measurements with the permeability measuring devices from List-Magnetik can only be carried out on paramagnetic substances. For example, paramagnetic are aluminum, chrome, platinum, and stainless steel. In the case of stainless steel, the value µr depends on the alloy.
Ferromagnetic substances (iron, nickel, cobalt and various alloys) have a permeability number that is significantly greater than 1 and can assume values of more than 100. Such substances considerably increase the magnetic flux density of a magnetic field. List-Magnetik permeability measuring devices are not designed for this.
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