Why are some magnets stronger than others?

I believe many people have a question in their mind, that is, why are some magnets stronger than others?
1. The magnet material is not the same.
Some magnets look the same to you, but they may be made of two completely different materials. Do you know which material is the most magnetic?
2. The performance grade is not the same.
No matter what kind of material magnet, they have a variety of brands to meet the magnetic requirements of different customers, usually the higher the brand, the stronger the magnetic force, which is also the cause of the magnetic force has high and low points.
Common performance grades of NdFeB magnets are N35, N38, N40, N42, N45, N48, N50, N52.
The commonly used grades of ferrite magnets are Y10, Y25, Y30, Y30BH, Y35, Y40
3. The magnet specifications are not the same.
The larger the size of the magnet, the thicker the thickness (with the specification) their magnetic force will be stronger, NdFeB strong magnetic even if the thickness of 1mm difference in their magnetic will be significantly different Oh.
4. Magnetizing direction is not the same.
The direction of magnetization is not the same as a key factor affecting the magnetic force, originally required to use this surface, magnetization error will be another surface into a strong magnetic surface, will naturally lead to the magnetic force is not strong phenomenon.



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