Why does temperature matter?
Explain:
-
magnetic domain structure,
-
reversible vs irreversible demagnetization,
-
why strength does not recover.
Temperature limits by magnet type
| Magnet type | Max operating temperature |
|---|---|
| Neodymium (N) | ~80°C |
| Neodymium (H) | ~120°C |
| Neodymium (SH) | ~150°C |
| Ferrite | ~250°C |
How to choose the right magnet for high temperatures
Bullet points:
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continuous vs peak temperature,
-
environment,
-
safety margin.
Practical use cases
-
motors and housings,
-
workshops,
-
home applications.
Common mistakes
-
choosing strength over suitability,
-
ignoring safety margins,
-
misunderstanding grade markings.
FAQ
Can a neodymium magnet recover after overheating?
Usually no – the loss is permanent.
Can neodymium magnets melt?
No, but they can lose magnetization.
Which magnet works above 100°C?
High-temperature grades such as H or SH.