Neodymium magnets have specific grade to indicate its power.such as N35 magnets or N52 magnets.or others.
The grade of a neodymium magnet is defined based on its maximum energy product (BH)max.which reflects the maximum strength after it’s magnetized. The grade usually starts with “N” followed by a number, with the higher the number indicating the higher the strength of the magnet. For example, N52 magnets have a higher maximum energy product and stronger magnetic properties than N35 magnets.
In addition to the standard grades, there are special grades of neodymium magnets that are designed to maintain higher performance at specific temperatures. These special grades include grades with letters ending, such as 38M, 40H, 45SH, etc., where the ending letter indicates the highest operating temperature that the magnet can withstand. For example, an 35M magnet can operate at 100°C, while an 45SH magnet can operate at 150°C.
Please check the grade chart of neodymium magnets below.
