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Difference between high temperature resistant magnets and ordinary magnets

When we talk about magnets, we often come across two main types: ordinary magnets and high temperature resistant magnets, there are netizens eager to know what is the difference between them, the following China magnet factory Courage small Fu will be introduced.

Ordinary magnets are usually one of the types we are most familiar with, such as ferrite permanent magnets, neodymium-iron-boron, they are able to produce a stable magnetic field at room temperature, and they are widely used in electronic products, medical equipment, and daily necessities. However, ordinary magnets show vulnerability in the face of high temperatures, and their magnetic properties are weakened or even lost as the temperature rises.

High-temperature resistant magnets refer to permanent magnetic materials, such as samarium cobalt magnets, alnico, etc., which are suitable for high-temperature working environments.

The following pictures show various combinations of neodymium magnet shapes.

various combinations of neodymium magnet shapes

What are the differences between high temperature resistant magnets and ordinary magnets?

1, Temperature resistance performance difference;

Ordinary magnets can generally withstand ambient temperatures of 80-250 degrees Celsius, while high-temperature-resistant magnets can withstand high-temperature environments of up to 300 degrees Celsius or more.

2, The difference in magnetic properties;

Ordinary magnets are able to produce a strong magnetic field at room temperature, but their magnetic properties may be significantly weakened or disappeared in high-temperature environments. High-temperature magnets have higher heat resistance, can maintain stable magnetic properties at high temperatures, not easy to lose magnetism.

3, The use of different environments

Ordinary magnets are suitable for many general applications, such as electronic products, packaging, handbags, toys, medical equipment and other areas that do not need to withstand high temperatures. High-temperature magnets are more suitable for the need to work in a high-temperature environment, such as automobile engines, aerospace technology and high-temperature industrial production areas.

4, Difference in oxidation resistance

High-temperature magnets also have better oxidation resistance, can resist the oxidation of air in the high-temperature environment, to extend its service life, while the ordinary magnets are susceptible to oxidation and corrosion at high temperatures.


5, Difference in cost

High-temperature magnets cost a little higher.

To summarize, high-temperature magnets relative to ordinary magnets, in a high-temperature environment with superior performance, to maintain stable magnetic properties, so more suitable for the need to work at high temperatures for long periods of time in specific applications.

Content that may be of interest to you;

List of high temperature resistance permanent magnets

Neodymium magnets of high temperature resistance also will demagneti

Temperature Characteristics and Coefficients of Ferrite Magnets

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