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Comparison of Properties of Neodymium-Iron-Boron and Samarium Cobalt

How to select the suitable working temperature, magnets, reduce costs, improve product quality, has always been a difficulty in many designers,if the magnet can't resist  high temperature will cause problems in use.Choose the high-temperature magnet will add unnecessary costs ?

Neodymium Iron Boron VS Samarium Cobalt

Let's do the performance comparison of  samarium cobalt  and NdFeB magnet under the high temperature:

  • Below 150 degrees Celsius, NdFeB performance is the strongest , its magnetic force  is much stronger than others.
  • Above 150 degrees Celsius, NdFeB magnetic force were lower than samarium cobalt.
  • The highest working temperature of NdFeB is 230 degrees Celsius,  samarium cobalt can be stable in 300 to 350 degrees Celsius.