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How Does Temperature Affect Samarium Cobalt Magnets


Samarium cobalt magnets certainly come into their own at high operating temperatures and will begin to outperform special high-temperature neodymium magnets from 150℃. While not as powerful as other rare-earth magnets such as neodymium magnets, they maintain their magnetism in temperatures much higher than the threshold for neodymium magnets, withstanding temperatures up to 350°C.

Did you know? Samarium cobalt magnets can operate in temperatures up to 350°C.

The temperature coefficient for Samarium Cobalt is 0.2% per degree C rise in temperature and this loss is fully recovered if the maximum operating temperature is not exceeded.

Because of their thermal stability, samarium cobalt magnets are the magnet of choice for many demanding applications such as motors and generators in the manufacturing, automotive and aerospace industries where high operating temperatures are prevalent.

Did you know? Samarium cobalt magnets can even be used in temperatures as low as -273℃ (known as absolute zero). That’s mighty cold!

Samarium cobalt magnets do not just excel at high temperatures, they maintain their magnetic properties even at temperatures below absolute zero (-273℃) making them popular for cryogenic applications.

MAGNET TYPE SUFFIX Max. Working Temperature(based on High working point)
1:5 250℃
2:17 350℃