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Magnets Home > Magnet University > Neodymium Magnets Grades

Neodymium Magnets Grades

Grade of Neodymium Magnets:

Neodymium magnets come in different grades such as N42, N52 or N42SH.

It all starts with the letter 'N', all the names of neodymium magnets begin with 'N' for neodymium. The number that follows is a little more technical as this represents the maximum energy product of the magnet in 'Mega-Gauss Oersteds' (MGOe). This is the primary indicator of a magnets 'strength'. In general, higher numbers indicate a stronger magnet.

According to strength of coercive force of sintered neodymium permanent magnet products, products can be classified into different types:
normal coercive force (N), medium coercive force (M), high coercive force (H), super high coercive force (SH), ultra high coercive force (UH), extremely high coercive force (EH) and advanced high (AH).

Type Grade Residual Induction /BR(Gauss) Coercive Force/Hc (Oe) Intrinsic Coercive Force/Hci (Koe) Max.Energy Product/Bhmax (MGOe) Maximum Operating Temp (°C/°F) Curie Temp (°C/°F)
N N35 11700 10900 12 35 80/176 310/590
N N38 12200 11300 12 38 80/176 310/590
N N40 12500 11400 12 40 80/176 310/590
N N42 12800 11500 12 42 80/176 310/590
N N45 13200 11600 12 45 80/176 310/590
N N48 13800 11600 12 48 80/176 310/590
N N50 14000 10000 11 50 60/140 310/590
N N52 14300 10000 11 52 60/140 310/590
               
M N33M 11300 10500 14 33 100/212 340/644
M N35M 11700 10900 14 35 100/212 340/644
M N38M 12200 11300 14 38 100/212 340/644
M N40M 12500 11600 14 40 100/212 340/644
M N42M 12800 12000 14 42 100/212 340/644
M N45M 13200 12500 14 45 100/212 340/644
M N48M 13600 12900 14 48 100/212 340/644
M N50M 14000 13000 14 50 100/212 340/644
               
H N35H 11700 10900 17 35 120/248 340/644
H N38H 12200 11300 17 38 120/248 340/644
H N40H 12500 11600 17 40 120/248 340/644
H N42H 12800 12000 17 42 120/248 340/644
H N45H 13200 12100 17 45 120/248 340/644
H N48H 13700 12500 17 48 120/248 340/644
               
SH N35SH 11700 11000 20 35 150/302 340/644
SH N38SH 12200 11400 20 38 150/302 340/644
SH N40SH 12500 11800 20 40 150/302 340/644
SH N42SH 12800 12400 20 42 150/302 340/644
SH N45SH 13200 12600 20 45 150/302 340/644
               
UH N28UH 10200 9600 25 28 180/356 350/662
UH N30UH 10800 10200 25 30 180/356 350/662
UH N33UH 11300 10700 25 33 180/356 350/662
UH N35UH 11800 10800 25 35 180/356 350/662
UH N38UH 12200 11000 25 38 180/356 350/662
UH N40UH 12500 11300 25 40 180/356 350/662
UH N42UH 12800 11300 25 42 180/356 350/662
               
EH N28EH 10400 9800 30 28 200/392 350/662
EH N30EH 10800 10200 30 30 200/392 350/662
EH N33EH 11300 10500 30 33 200/392 350/662
EH N35EH 11700 11000 30 35 200/392 350/662
EH N38EH 12200 11300 30 38 200/392 350/662
EH N40EH 12500 11300 30 40 200/392 350/662
               
AH N28AH 10400 9900 33 28 230/446 350/662
AH N30AH 10800 10300 33 30 230/446 350/662
AH N33AH 11300 10600 33 33 230/446 350/662
AH N35AH 11700 11000 33 35 230/446 350/662
AH N38AH 12200 11300 33 38 230/446 350/662

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