Are permanent ferrite magnets prone to rusting?

Are ferrite magnets prone to rusting?

The main component of ferrite magnet is Fe3O4, which is already an oxide of iron, so it is very difficult to be oxidized again.
Other magnets (mainly composed of iron) are made from magnetized metal iron or other elements. Like other iron and steel, they can be oxidized and rust, the magnetism of the oxidized part will disappear.

What are the advantages of choosing a Permanent Ferrite Magnet?

1. Low cost, low price. The raw material cost is cheap and the manufacturing process is simple.
2. It has good temperature stability and can be used at temperatures of -40 degrees Celsius and+350 degrees Celsius.
3. High Coercivity Hc (between aluminum nickel alloy material and rare earth permanent magnetic material)
4. Just mentioned, it doesn't rust.

At present, Permanent Ferrite Magnets have been widely used in various industries such as electroacoustics, motors, electrical appliances, toys, hardware, plastics, etc.

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