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Rare Earth
Neodymium magnets are a member of the Rare Earth magnet family and are the most powerful permanent magnets in the world. They are also referred to as NdFeB magnets, or NIB, because they are composed mainly of Neodymium (Nd), Iron (Fe) and Boron (B). They are a relatively new invention and have only recently become affordable for everyday use.
Grades of Neodymium
N35, N38, N42, N38SH...what does it all mean? Neodymium magnets are all graded by the material they are made of. As a very general rule, the higher the grade (the number following the 'N'), the stronger the magnet. The highest grade of neodymium magnet currently available is N52. Any letter following the grade refers to the temperature rating of the magnet. If there are no letters following the grade, then the magnet is standard temperature neodymium. The temperature ratings are standard (no designation) - M - H - SH - UH - EH. You find the temperature rating of each grade on our Specifications of Neodymium Magnets Page.
Performance | Customized ( N35 N40 N45 N50 N52 etc.) | |||
Coating | Customized (Zn,Ni-Cu-Ni,Ni,Gold, Silver, Copper, Epoxy, Chrome, etc) | |||
Shape | Customized (Block, Disc, Cylinder, Arc,Bar, Ring, Countersunk, Segment, Hook, Trapezoid, Irregular shapes, etc) | |||
Material | NdFeB | |||
Magnetization | Diametrally Magnetized,Axially Magnetized,Thickness Magnetized, Multi-poles magnetized, Radial Magnetized. (Customzied specific requirements magnetized) | |||
Max. Working Temperature | Grade | Max. Operating Temperatures( ºC) | ||
N35-N52 | <=80 | |||
N35M-N52M | <=100 | |||
N35H-N50H | <=120 | |||
N33SH-N45SH | <=150 | |||
N30UH-N40UH | <=180 | |||
N30EH-N35EH | <=200 | |||
N28AM-N33AM | <=230 | |||
