Do Neodymium magnets lose their strength over time?
Neodymium magnets are the strongest and most permanent magnets that are currently available. As long as they are not used above their maximum operating temperature they should only lose about 1% of their strength over 10 years. Nothing really noticeable unless you have very sensitive measuring equipment. [Back To Top] • What is the “N rating” of a magnet? Simply put the “N rating” or grade of the magnet is its maximum strength. It takes into account the Maximum Energy Product of the material used to make the magnet, and the maximum strength that it can be magnetised to. In the case of neodymium magnets grade is mostly measured in units millions of Gauss Oersted (MGOe), so if you see that a magnet has a grade of N42 then it has a Maximum Energy Product of 42 MGOe. In layman’s terms the higher the grade, the stronger the magnet. [Back To Top] • What goes into a neodymium magnet and how do you make one? Funnily enough neodymium magnets are actually composed of neodymium -mixed with iron a
