Hard Ferrite Magnets are made of Barium or Strontium Ferrite. This class of magnets, aside from good resistance to demagnetization, has the popular advantage of low cost.
Due to their low cost, Hard Ferrite magnets enjoy a very wide range of applications, from motors and loudspeakers to toys and craft, and are the most widely used permanent magnets today.
Many factors affect the choice of magnetic materials. Attached comparison table can help you select a right permanent magnet material for your application.
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