Properties[edit]
Neodymium magnets (small cylinders) lifting steel spheres. Such magnets can easily lift thousands of times their own weight.
Grades[edit]
Neodymium magnets are graded according to their maximum energy product, which relates to the magnetic flux output per unit volume. Higher values indicate stronger magnets and range from N35 up to N52. Letters following the grade indicate maximum operating temperatures (often the Curie temperature), which range from M (up to 100 degrees Celsius) to EH (200 degrees Celsius).[11]
Grades of Neodymium magnets:[12]
N35-N52
33M-48M
30H-45H
30SH-42SH
30UH-35UH
28EH-35EH