China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Neodymium magnets, a kind of magnetic powerful permanent magnets, also become death magnets. There are some customers who are not familiar with magnets may not know which type of magnet they have in their hands, the following xiaofu introduction for you to determine whether it is neodymium magnets several ways, if you know, please ignore.
1, Look at the appearance
Neodymium magnets because of corrosion resistance is not good, through the electroplating protection, so it usually has a silver-white metallic luster appearance, of course, this method is not very reliable, because other magnets can be surface plating, such as ferrite, samarium cobalt and so on.
Following picture shows the common appearance colors of rare earth neodymium segment magnets
2, Measure the strength
Neodymium magnets have very strong magnetic field strength, you can use a magnetic field strength tester or magnet test card to test the magnetic field strength. If the magnetic field strength is very high, it may be a neodymium magnet.
Recommended learning: What determines a magnets strength？
3, Material composition test
The material composition of neodymium magnet is mainly neodymium (Nd), iron (Fe) and boron (B), which can be tested by element analyzer or X-ray fluorescence spectrometer. If the test result shows that the magnet's material composition contains neodymium, iron and boron, then it is neodymium magnet.
More detail: Main composition and proportion of rare earth neodymium magnets
4, Curie temperature test
The Curie temperature of a neodymium magnet is about 310°C. A thermal analyzer can be used to test the Curie temperature of the magnet.
Curie temperature values for each grade of neodymium magnets: Neodymium Temperature Range (Rating)
5, Density test
The density of neodymium magnet is high, you can judge by weighing and measuring the volume to calculate the density, the density of neodymium magnet is about 7.5g/cm³.
Above is the introduction of judging whether a magnet is made of neodymium, have you learned it? If you have any questions about magnets or need a quote, make a sample you can contact us through the online message.
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