By Grade

NEODYMIUM IRON BORON MAGNETS – Magnet Grade

Magnet Grade – Known as third generation of Rare Earth magnets, Neodymium Iron Boron (NdFeB) magnets are the most powerful and advanced commercialized permanent magnet today. Since they are made from Neodymium, one of the most plentiful rare earth elements, and inexpensive iron, NdFeB magnets offer the best value in cost and performance.

Sintered NdFeB Magnets By Grade

Sintered NdFeB Magnets By Grade

NdFeB magnets are available in both sintered and bonded forms. Sintered NdFeB offers the highest magnetic properties (28 MGOe to 50 MGOe) while Bonded NdFeB offers lower energy properties. Although bonded magnets do not possess magnetic properties as advanced as those of sintered magnets, they can be made in shapes and sizes that are difficult to achieve with sintering.

A variety of coatings can be applied to the magnets’ surface to overcome the principle drawback of neodymium-based magnets, their tendency to corrode easily.

Neodymium Magnet Grade: N27-N52, 30M-50M, 30H-48H, 30SH-45SH, 28UH-40UH, 28EH-38EH, 28AH~35AH;

Sintered NdFeB Magnets By Grade

N Material NdFeB

M Material NdFeB

H Material NdFeB

SH Material NdFeB

UH Material NdFeB

EH Material NdFeB

AH Material NdFeB

Typical Magnetic Properties / Magnet Grade

Grade

Max. Energy Product

Remanence

Coercive Force

Rev. Temp. Coeff.

Curie Temp.

Max. Working Temp.

(BH)max

Br

Hc

Hci

Bd

Hd

Tc

Tw

MGOe

kJ/m3

kG

mT

kOe

kA/m

kOe

kA/m

%/°C

%/°C

°C

°C

N27

25-29

199-231

10.50

1050

>10.0

>796

>12.0

>955

-0.12

-0.60

310

80

N30

28-31

223-247

11.00

1100

>10.2

>812

>12.0

>955

-0.12

-0.60

310

80

N33

31-33

247-263

11.50

1150

>10.5

>836

>12.0

>955

-0.12

-0.60

310

80

N35

33-36

263-287

12.00

1200

>10.9

>868

>12.0

>955

-0.12

-0.60

310

80

N38

36-39

287-310

12.40

1240

>11.3

>899

>12.0

>955

-0.12

-0.60

310

80

N40

38-41

302-326

12.70

1270

>11.4

>907

>12.0

>955

-0.12

-0.60

310

80

N42

40-43

318-342

13.00

1300

>11.5

>915

>12.0

>955

-0.12

-0.60

310

80

N45

43-46

342-366

13.50

1350

>11.6

>923

>12.0

>955

-0.12

-0.60

310

80

N48

46-49

366-390

14.00

1400

>11.6

>923

>12.0

>955

-0.12

-0.60

310

80

N50

48-51

382-406

14.30

1430

>10.3

>820

>12.0

>955

-0.12

-0.60

310

80

N52

50-53

398-422

14.50

1450

>10.3

>820

>11.0

>877

-0.12

-0.60

310

80

N30M

28-31

223-247

11.00

1100

>10.2

>812

>14.0

>1114

-0.12

-0.59

320

100

N33M

31-33

247-263

11.50

1150

>10.5

>836

>14.0

>1114

-0.12

-0.59

320

100

N35M

33-36

263-287

12.00

1200

>10.9

>868

>14.0

>1114

-0.12

-0.59

320

100

N38M

36-39

287-310

12.40

1240

>11.4

>907

>14.0

>1114

-0.12

-0.59

320

100

N40M

38-41

302-326

12.70

1270

>11.6

>923

>14.0

>1114

-0.12

-0.59

320

100

N42M

40-43

318-342

13.00

1300

>12.0

>955

>14.0

>1114

-0.12

-0.59

320

100

N45M

43-46

342-366

13.50

1350

>12.5

>995

>14.0

>1114

-0.12

-0.59

320

100

N48M

46-49

366-390

14.00

1400

>12.9

>1027

>14.0

>1114

-0.12

-0.59

320

100

N50M

48-51

382-406

14.30

1430

>13.1

>1043

>14.0

>1114

-0.11

-0.58

320-350

100

N30H

28-31

223-247

11.00

1100

>10.2

>812

>17.0

>1353

-0.11

-0.58

320-350

120

N33H

31-34

247-271

11.50

1150

>10.5

>836

>17.0

>1353

-0.11

-0.58

320-350

120

N35H

33-36

263-287

12.00

1200

>10.9

>868

>17.0

>1353

-0.11

-0.58

320-350

120

N38H

36-39

287-310

12.40

1240

>11.4

>907

>17.0

>1353

-0.11

-0.58

320-350

120

N40H

38-41

302-326

12.70

1270

>11.6

>923

>17.0

>1353

-0.11

-0.58

320-350

120

N42H

40-43

318-342

13.00

1300

>12.0

>955

>17.0

>1353

-0.11

-0.58

320-350

120

N45H

43-46

342-366

13.50

1350

>12.5

>999

>17.0

>1353

-0.11

-0.58

320-350

120

N48H

46-49

366-390

14.00

1400

>12.9

>1027

>17.0

>1353

-0.11

-0.55

340-360

120

N30SH

28-31

223-247

11.00

1100

>10.2

>812

>20.0

>1592

-0.11

-0.55

340-360

150

N33SH

31-34

247-271

11.50

1150

>10.6

>844

>20.0

>1592

-0.11

-0.55

340-360

150

N35SH

33-36

263-287

12.00

1200

>11.0

>876

>20.0

>1592

-0.11

-0.55

340-360

150

N38SH

36-39

287-310

12.40

1240

>11.4

>907

>20.0

>1592

-0.11

-0.55

340-360

150

N40SH

38-41

302-326

12.70

1270

>11.8

>939

>20.0

>1592

-0.11

-0.55

340-360

150

N42SH

40-43

318-342

13.00

1300

>12.4

>987

>20.0

>1592

-0.11

-0.55

340-360

150

N45SH

43-46

342-366

13.50

1350

>12.6

>1003

>20.0

>1592

-0.11

-0.51

350-380

150

N28UH

26-29

207-231

10.60

1060

>9.6

>764

>25.0

>1990

-0.11

-0.51

350-380

180

N30UH

28-31

223-247

11.00

1100

>10.2

>812

>25.0

>1990

-0.11

-0.51

350-380

180

N33UH

31-34

247-271

11.50

1150

>10.8

>860

>25.0

>1990

-0.11

-0.51

350-380

180

N35UH

33-36

263-287

12.00

1200

>11.3

>899

>25.0

>1990

-0.11

-0.51

350-380

180

N38UH

36-39

287-310

12.40

1240

>11.5

>915

>25.0

>1990

-0.11

-0.51

350-380

180

N40UH

38-41

302-326

12.70

1270

>11.8

>939

>25.0

>1990

-0.11

-0.51

350-380

180

N28EH

26-29

207-231

10.70

1070

>9.8

>780

>30.0

>2388

-0.11

-0.51

350-380

200

N30EH

28-31

223-247

11.10

1110

>10.2

>812

>30.0

>2388

-0.11

-0.51

350-380

200

N33EH

31-34

227-271

11.50

1150

>10.8

>860

>30.0

>2388

-0.11

-0.51

350-380

200

N35EH

33-36

263-287

12.00

1200

>11.1

>884

>30.0

>2388

-0.11

-0.51

350-380

200

N38EH

36-39

287-310

12.40

1240

>11.5

>915

>30.0

>2388

-0.11

-0.51

350-380

200

N28AH

26-29

207-231

10.70

1070

>9.8

>780

>35.0

>2786

-0.11

-0.51

350-380

220

N30AH

28-31

223-247

11.10

1110

>10.2

>812

>35.0

>2786

-0.11

-0.51

350-380

220

N33AH

31-34

227-271

11.50

1150

>10.8

>860

>35.0

>2786

-0.11

-0.51

350-380

220

N35AH

33-36

263-287

12.00

1200

>11.1

>884

>35.0

>2786

-0.11

-0.51

350-380

220

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