Compare Magnet Strength With Temperature Resistance. That considered, all neodymium magnets will lose a certain amount of performance for every degree rise in temperature even if the temperature is below their maximum operating. A neodymium magnets strength with no letter after the grade, i.e.
Below 200 degrees celsius, ndfeb is the strongest magnet, far more powerful than other rare earth permanent magnets. Then touch the end of the paper clip hanging from the magnet to a second paper clip. \$\begingroup\$ strongest magnetism for the lowest current.