Ferrite magnets are permanent magnets mainly made of SrO or BaO and Fe2O3. Ferrite magnets are not easy to be demagnetized, not easy to be corroded, their production process is simple, and their price is relatively low. Therefore, the output of ferrite magnets is the highest in the entire magnet industry, and they are widely used in industrial production. Although we often use ferrite magnets in our daily lives, many people are still not clear about the grades of ferrite magnets. So in this article, let’s take a look at the ferrite magnet grades.
There are 27 grades of permanent ferrite magnets on the market today, and they all have different ferromagnetic properties. Ferrite magnets, also called ceramic magnets, are commonly used in motors and generators because of their resistance to demagnetization-they have a high inherent coercivity!
The chemical compound of ferrite magnet is SrO-6 (Fe2O3), which is a mixture of strontium carbonate and iron oxide. And some grades also include other chemicals, like cobalt and lanthanum, to improve magnetic properties.
Previously, the grades of ferrite magnets were marked with the letter “C” and then marked with numbers, such as C1, C2, C3. Now, this system has been replaced by a similar one with all grades starting with the letter “Y” followed by a number or a series of numbers and letters. The numbers after the letter define the maximum energy product of the magnet, and the letter after the numbers is used to further distinguish different grades with different characteristics.
Among all the grades of ferrite magnets, the most popular grade is the Y30. You can purchase these magnets right now from the Stanford Magnets in the form of a block, disc, ring, hook, channel, or pot.
The following is a table about the ferrite magnet grades and their magnetic properties for your reference.
Thank you for reading our article and we hope it can help you to have a better understanding of the grades of ferrite magnets. If you want to know more about ferrite magnets or other types of magnets, we would like to advise you to visit Stanford Magnets for more information.