The grade explanation for Sintered Neodymium Magnet by china-magnets-source-material.com

N: general coercive force Hcj ≥12Koe, for example: N40

M: medium coercive force Hcj ≥14Koe, for example: N48M

H: high coercive force Hcj ≥17Koe, for example: N45H

SH: very high coercive force Hcj ≥20Koe, for example: N42SH

 

UH: great high coercive force Hcj ≥25Koe, for example: N438UH

EH: super high coercive force Hcj ≥30Koe, for example: N35EH

 

AH: Top high coercive force Hcj ≥35Koe, for example: N28AH

T: high requirement for corrosion resistance, for example: N45T

L-T: low temperature coefficient and high requirement for corrosion resistance, for example: L-38SHT

PS: Figure represents the max energy product