With the introduction of Neodymium-Iron-Boron (NdFeB) magnets, there has been a progressive expansion in the use of this alloy in more and more sectors.
Despite the apparent predominance of neodymium on the market, the other already well-established magnetic materials on the market have not lost their relevance or usefulness, mainly due to the specific technical characteristics of each type, which remain irreplaceable in many niche sectors and are still unattainable by the NdFeB alloy.
In this section we have collected the main alternative magnetic materials, below a quick overview:
FERRITE: One of the first types of permanent magnets. The main advantages are the extremely competitive cost, combined with resistance to rust and corrosion, as well as a maximum operating temperature of 250 °C.
SM-CO: It combines an adhesive force almost comparable to neodymium with a temperature resistance up to 350 °C, while also ensuring magnetic field stability up to -150 °C. Good corrosion resistance.
AL-NI-CO: It has the highest maximum operating temperature of all other materials, 650 °C. The production method also allows for a variety of forms.