Temperature chart for magnets

Magnets are most optimal at room temperature, but sometimes you need to use magnetism in machines and ovens, where the temperatures can fluctuate quite a bit.

< h2>Can magnets withstand heat?

Here you will find an arrangement of max. heat degrees for the different magnet types. However, there are usually always exceptions to the rules - this also applies to magnets. And we list the exceptions further down the page.

Temperature chart

Max. heat:

• Neodymium: 80°C
• Ferrit: 250°C
• Magnetic tape: 85°C< /li>

Max. cold: 

• Neodymium: withstands extreme cold*
• Ferrite: -40°C
• Magnetic tape: -20°C

*Neodymium as such does not have a max. cold temperature. They are tested to be able to withstand liquid nitrogen, which makes them perfect for e.g. cold and freezer rooms.

Since ferrite magnets withstand much higher heat than neodymium, we recommend you look in this direction for e.g. wood stoves. But if it is industrial use, where the heat comes very close to or quite a bit above 250°C, you need a specially developed ferrite magnet for your project.

Exceptions to the rule - neodymium

The thinner a magnet is, the more fragile it is - not only in relation to breaking but also in relation to heat and how much heat it can withstand.

1 mm magnets. in thickness will be able to lose magnetism already at 60°C, while magnets with the same thickness as diameter (e.g. 10x10 mm.) will be able to withstand up to 140°C under ideal circumstances. As this is a bit of a gray area, and it will be too cumbersome for us to test all sizes of magnets, it requires that you test the magnets yourself before starting a larger production, as there may be various parameters that we cannot calculate in your project - e.g. stability, possibly blows, violent temperature changes, etc. So therefore this is just an indicator of what you are dealing with in temperature range for magnets made of neodymium.