Neodymium Magnet Grades
Neodymium Magnet Grades
Neodymium magnet, also known as NdFeB magnet, has excellent magnetic properties and is widely used in electronics, medical equipment, toys, packaging, hardware machinery, aerospace, and other fields. However, many people, especially those who are new to neodymium magnets, are confused about the meaning of the different letters and numbers in a grade’s name. Therefore, in this article, we will explain the difference in neodymium magnet grades.
Neodymium Magnet Grades
It all starts with the letter “N”. The names of all neodymium magnets begin with “N”, which means neodymium. The number that follows is a little more technical because it represents the maximum energy product of a magnet in “Mega-Gauss Oersteds” (MGOe), which is the main indicator of magnet strength. In short, the higher the maximum energy product value, the larger the magnetic field that the magnet will generate in a particular application.
The grades that can usually be purchased range from N30 to N52, because low-grade neodymium magnets are usually no longer produced. At Stanford Magnets, we do not make any compromises on quality. Most of our magnets are grade N42 or above. Compared with many cheaper N35 grade neodymium magnets, their magnetism is 20% higher.
N42 grade provides high performance at an economical price. Grades above N42 tend to be more expensive and the increase in price is not proportionate to the improvement in performance. A good example is the N52 grade, which is 20% more powerful than the N42 grade, but at twice the price.
When a higher performance neodymium magnet is required and the available space for the magnet is limited and cannot be increased, then a higher grade should be used. Otherwise, using two N42 magnets will be more advantageous than using one N52 magnet.
Sometimes, you may also see one or two letters tagged onto the end of a grade. They determine the temperature rating and represent the highest operating temperature the magnet can withstand before it starts to lose magnetism permanently. These ratings should always be regarded as guide values, as other factors (such as size and shape) also have an impact on magnet performance at high temperatures. For more information, you can visit our “How does temperature affect the neodymium magnets” page.
The following is a table about the neodymium magnet grades and their magnetic properties for your reference.
Neodymium Magnet Grades
Neodymium Magnet Grades
Neodymium Magnet Grades
Neodymium Magnet Grades
Conclusion
Thank you for reading our article and we hope it can help you to have a better understanding of the Neodymium Magnet Grades. If you want to know more about neodymium magnets or other types of magnets, we would like to advise you to visit Stanford Magnets for more information.
As a leading magnet supplier across the world, Stanford Magnets has been involved in R&D, manufacturing, and sales of magnets since the 1990s. It provides customers with high-quality permanent magnets like neodymium magnets, SmCo magnets, AlNiCo magnets, and ferrite magnets (ceramic magnets) at a very competitive price.