AlNiCo Magnets
AlNiCo (Aluminium-Nickel-Cobalt) magnets are used for applications requiring high temperature resistance, such as in awe or sensing furnaces.
AlNiCo Magnets
AlNiCo (Aluminium-Nickel-Cobalt) magnets are used for applications requiring high temperature resistance, such as in awe or sensing furnaces.
AlNiCo Permanent Magnets
Magnets made of AlNiCo (Aluminium-Nickel-Cobalt) are commonly used in many industries, such as in electric motors, sensors, loudspeakers, guitar pickups, pianos and magnetic lifters. They are generally chosen in special applications that require high temperature resistance, such as inside furnaces that perform the function of awe or sensing.
The properties of cast isotropic AlNiCo
The properties of cast anisotropic AlNiCo
The properties of sintered isotropic AlNiCo
The properties of sintered anisotropic AlNiCo
Magnetization geometries
Areas of applications





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In-depth — AlNiCo Magnets
Anisotropic or Isotropic
AlNiCo magnets can be produced through sintering or casting processes; through the latter, they not only provide better magnetic performance but also allow the creation of special shapes that cannot be achieved with the standard sintering process. On the other hand, sintering provides excellent mechanical properties, although with lower magnetic performance compared to the magnet obtained through casting.
There is a distinction between anisotropic or isotropic AlNiCo magnets: the forms are treated and cooled in a way that maximizes magnetic strength in a preferred direction, with the flux orientation achieved during production. Isotropic magnets, on the other hand, can be magnetized in any direction while maintaining their magnetic properties, which, however, will be inferior to those of anisotropic magnets.
AlNiCo magnets are very brittle and hard, which is why they cannot be drilled or processed except with specific machines and procedures. They must also be handled with care since, with a low coercivity compared to other types of magnets, they are more easily demagnetized when placed near other magnetic fields. However, this type of magnet has high corrosion resistance and therefore does not require surface coating.
Although AlNiCo magnets are often replaced by cheaper and more easily available Neodymium magnets, they remain the best choice when high magnetic properties are needed (in fact, superior to those of ferrite), and when high-temperature resistance is required (the Curie temperature is around 800°C), which Neodymium magnets cannot provide.
For more information about this type of magnetism, or if you would like to send us your project and discuss it together, contact us at vendite@odbmagneti.com.
Questions & Answers about AlNiCo Magnets
What are Alnico magnets?
Alnico magnets are alloys of aluminium, nickel and cobalt, to which other metals such as copper and titanium can also be added. These magnets are known for their resistance to temperature and corrosion.