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Neodymium magnets

Description
Neodymium Iron Boron (NdFeB) magnets are high remanence, high coercive force, high energy products. It can be easily formed into various sizes, widely used in motors, sensors, meters, sound devices, magnetic separators,  automobiles, aviation, aerospace and other applications. It is easily to corrode in humid environments, so it usually needs surface treatment. Also we can do the surface treatment according to customers.
Tel:
+86 571 82839133
E-mail:
info@smi-mag.com
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  • Properties
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MAGNETIC PROPERTIES

 

Grade

Br

Hcb

Hcj

(BH)max

Working Temp

mT

Gs

kA/m

Oe

kA/m

Oe

kJ/m3

MGOe

N35

1180-1230

11800-12300

≥868

≥10900

≥955

≥12000

263-287

33-36

≤80

N38

1220-1280

12200-12800

≥899

≥11300

≥955

≥12000

287-310

36-39

N40

1260-1310

12600-13100

≥923

≥11600

≥955

≥12000

302-326

38-41

N42

1280-1340

12800-13400

≥923

≥11600

≥955

≥12000

318-342

40-43

N45

1320-1370

13200-13700

≥876

≥11000

≥955

≥12000

342-366

43-46

N48

1360-1420

13600-14200

≥836

≥10500

≥876

≥11000

358-390

45-48

N50

1390-1450

13900-14500

≥836

≥10500

≥876

≥11000

374-406

47-51

N52

1420-1480

14200-14800

≥796

≥10000

≥876

≥11000

390-422

49-53

N35M

1180-1230

11800-12300

≥868

≥10900

≥1114

≥14000

263-287

33-36

≤100

N38M

1220-1280

12200-12800

≥899

≥11300

≥1114

≥14000

287-310

36-39

N40M

1260-1310

12600-13100

≥923

≥11600

≥1114

≥14000

302-326

38-41

N42M

1280-1340

12800-13400

≥923

≥11600

≥1114

≥14000

318-342

40-43

N45M

1340-1390

13400-13900

≥876

≥11000

≥1114

≥14000

342-366

43-46

N48M

1360-1420

13600-14200

≥876

≥11000

≥1114

≥14000

366-390

46-49

N35H

1180-1230

11800-12300

≥868

≥10900

≥1353

≥17000

263-287

33-36

≤120

N38H

1220-1280

12200-12800

≥899

≥11300

≥1353

≥17000

287-310

36-39

N40H

1260-1310

12600-13100

≥923

≥11600

≥1353

≥17000

302-326

38-41

N42H

1280-1340

12800-13400

≥923

≥11600

≥1353

≥17000

318-342

40-43

N45H

1330-1390

13300-13900

≥923

≥11600

≥1353

≥17000

342-366

43-46

N48H

1360-1420

13600-14200

≥923

≥11600

≥1274

≥16000

366-390

46-49

N33SH

1140-1190

11400-11900

≥836

≥10500

≥1592

≥20000

247-270

31-34

≤150

N35SH

1180-1230

11800-12300

≥868

≥10900

≥1592

≥20000

263-287

33-36

N38SH

1220-1280

12200-12800

≥899

≥11300

≥1592

≥20000

287-310

36-39

N40SH

1260-1310

12600-13100

≥923

≥11600

≥1592

≥20000

302-326

38-41

N42SH

1280-1340

12800-13400

≥923

≥11600

≥1592

≥20000

318-342

40-43

N45SH

1330-1390

13300-13900

≥923

≥11600

≥1592

≥20000

342-366

43-46

N28UH

1030-1090

10300-10900

≥780

≥9800

≥1990

≥25000

207-231

26-29

≤180

N30UH

1090-1140

10900-11400

≥812

≥10200

≥1990

≥25000

223-247

28-31

N33UH

1130-1170

11300-11700

≥852

≥10700

≥1990

≥25000

247-263

31-33

N35UH

1180-1220

11800-12200

≥868

≥10900

≥1990

≥25000

263-287

33-36

N38UH

1220-1270

12200-12700

≥899

≥11300

≥1990

≥25000

287-310

36-39

N28EH

1030-1090

10300-10900

≥780

≥9800

≥2388

≥30000

207-231

26-29

≤200

N30EH

1080-1130

10800-11300

≥812

≥10200

≥2388

≥30000

223-247

28-31

N33EH

1130-1170

11300-11700

≥852

≥10700

≥2388

≥30000

247-263

31-33

N35EH

1180-1220

11800-12200

≥868

≥10900

≥2388

≥30000

263-287

33-36

 
Curie Temperature (°C)310-370
Maximum Operating Temperature (°C)80-240
Resistivity (μ ohm.cm)160
Hardness (Hv)560-580
Density (g/cm3)7.40
Relative Recoil Permeability (μrec)1.05
Saturation Field Strength, kOe (kA/m)30-40 (2400-3200)
Temperature Coefficient of Br (%/°C)-0.12 ~ -0.10
Temperature Coefficient of iHc (%/°C)-0.6


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