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Rare Earth Magnets, Neodymium Magnet, Neodymium-Iron-Boron, Sintered NdFeB magnets, NdFeB magnets

Magnetic properties of Sintered NdFeB magnet:

Grade

Remanence Coercive Force Intrinsic Coercive Force Max. energy product Max.
Operating
Temperature

Br
mT
(kGs)

Hcb
kA/m
(kOe)

Hcj
kA/m
(kOe)

( BH )max kJ/m3
(MGOe)

Tw

N27

1030-1080
(10.3-10.8)

≥ 796
( ≥ 10.0)

≥ 955
( ≥ 12)

199-231
(25-29)

80 ℃

N30

1080-1130
(10.8-11.3)

≥ 796
( ≥ 10.0)

≥ 955
( ≥ 12)

223-247
(28-31)

80 ℃

N33

1130-1170
(11.3-11.7)

≥ 836
( ≥ 10.5)

≥ 955
( ≥ 12)

247-271
(31-34)

80 ℃

N35

1170-1220
(11.7-12.2)

≥ 868
( ≥ 10.9)

≥ 955
( ≥ 12)

263-287
(33-36)

80 ℃

N38

1220-1250
(12.2-12.5)

≥ 899
( ≥ 11.3)

≥ 955
( ≥ 12)

287-310
(36-39)

80 ℃

N40

1250-1280
(12.5-12.8)

≥ 907
( ≥ 11.4)

≥ 955
( ≥ 12)

302-326
(38-41)

80 ℃

N42

1280-1320
(12.8-13.2)

≥ 915
( ≥ 11.5)

≥ 955
( ≥ 12)

318-342
(40-43)

80 ℃

N45

1320-1380
(13.2-13.8)

≥ 923
( ≥ 11.6)

≥ 955
( ≥ 12)

342-366
(43-46)

80 ℃

N48

1380-1420
(13.8-14.2)

≥ 923
( ≥ 11.6)

≥ 876
( ≥ 12)

366-390
(46-49)

80 ℃

N50

1400-1450
(14.0-14.5)

≥ 796
( ≥ 10.0)

≥ 876
( ≥ 11)

382-406
(48-51)

60 ℃

N52

1430-1480
(14.3-14.8)

≥ 796
( ≥ 10.0)

≥ 876
( ≥ 11)

398-422
(50-53)

60 ℃

30M

1080-1130
(10.8-11.3)

≥ 796
( ≥ 10.0)

≥ 1114
( ≥ 14)

223-247
(28-31)

100 ℃

33M

1130-1170
(11.3-11.7)

≥ 836
( ≥ 10.5)

≥ 1114
( ≥ 14)

247-263
(31-33)

100 ℃

35M

1170-1220
(11.7-12.2)

≥ 868
( ≥ 10.9)

≥ 1114
( ≥ 14)

263-287
(33-36)

100 ℃

38M

1220-1250
(12.2-12.5)

≥ 899
( ≥ 11.3)

≥ 1114
( ≥ 14)

287-310
(36-39)

100 ℃

40M

1250-1280
(12.5-12.8)

≥ 923
( ≥ 11.6)

≥ 1114
( ≥ 14)

302-326
(38-41)

100 ℃

42M

1280-1320
(12.8-13.2)

≥ 955
( ≥ 12.0)

≥ 1114
( ≥ 14)

318-342
(40-43)

100 ℃

45M

1320-1380
(13.2-13.8)

≥ 995
( ≥ 12.5)

≥ 1114
( ≥ 14)

342-366
(43-46)

100 ℃

48M

1360-1430
(13.6-14.3)

≥ 1027
( ≥ 12.9)

≥ 1114
( ≥ 14)

366-390
(46-49)

100 ℃

50M

1400-1450
(14.0-14.5)

≥ 1033
( ≥ 13.0)

≥ 1114
( ≥ 14)

382-406
(48-51)

100 ℃

30H

1080-1130
(10.8-11.3)

≥ 796
( ≥ 10.0)

≥ 1353
( ≥ 17)

223-247
(28-31)

120 ℃

33H

1130-1170
(11.3-11.7)

≥ 836
( ≥ 10.5)

≥ 1353
( ≥ 17)

247-271
(31-34)

120 ℃

35H

1170-1220
(11.7-12.2)

≥ 868
( ≥ 10.9)

≥ 1353
( ≥ 17)

263-287
(33-36)

120 ℃

38H

1220-1250
(12.2-12.5)

≥ 899
( ≥ 11.3)

≥ 1353
( ≥ 17)

287-310
(36-39)

120 ℃

40H

1250-1280
(12.5-12.8)

≥ 923
( ≥ 11.6)

≥ 1353
( ≥ 17)

302-326
(38-41)

120 ℃

42H

1280-1320
(12.8-13.2)

≥ 955
( ≥ 12.0)

≥ 1353
( ≥ 17)

318-342
(40-43)

120 ℃

45H

1300-1360
(13-13.6)

≥ 963
( ≥ 12.1)

≥ 1353
( ≥ 17)

326-358
(43-46)

120 ℃

48H

1370-1430
(13.7-14.3)

≥ 995
( ≥ 12.5)

≥ 1353
( ≥ 17)

366-390
(46-49)

120 ℃

30SH

1080-1130
(10.8-11.3)

≥ 804
( ≥ 10.1)

≥ 1592
( ≥ 20)

223-247
(28-31)

150 ℃

33SH

1130-1170
(11.3-11.7)

≥ 844
( ≥ 10.6)

≥ 1592
( ≥ 20)

247-271
(31-34)

150 ℃

35SH

1170-1220
(11.7-12.2)

≥ 876
( ≥ 11.0)

≥ 1592
( ≥ 20)

263-287
(33-36)

150 ℃

38SH

1220-1250
(12.2-12.5)

≥ 907
( ≥ 11.4)

≥ 1592
( ≥ 20)

287-310
(36-39)

150 ℃

40SH

1240-1280
(12.5-12.8)

≥ 939
( ≥ 11.8)

≥ 1592
( ≥ 20)

302-326
(38-41)

150 ℃

42SH

1280-1320
(12.8-13.2)

≥ 987
( ≥ 12.4)

≥ 1592
( ≥ 20)

318-342
(40-43)

150 ℃

45SH

1320-1380
(13.2-13.8)

≥ 1003
( ≥ 12.6)

≥ 1592
( ≥ 20)

342-366
(43-46)

150 ℃

28UH

1020-1080 (10.2-10.8)

≥ 764
( ≥ 9.6)

≥ 1990
( ≥ 25)

207-231
(26-29)

180 ℃

30UH

1080-1130 (10.8-11.3)

≥ 812
( ≥ 10.2)

≥ 1990
( ≥ 25)

223-247
(28-31)

180 ℃

33UH

1130-1170
(11.3-11.7)

≥ 852
( ≥ 10.7)

≥ 1990
( ≥ 25)

247-271
(31-34)

180 ℃

35UH

1180-1220
(11.8-12.2)

≥ 860
( ≥ 10.8)

≥ 1990
( ≥ 25)

263-287
(33-36)

180 ℃

38UH

1220-1250
(12.2-12.5)

≥ 876
( ≥ 11.0)

≥ 1990
( ≥ 25)

287-310
(36-39)

180 ℃

40UH

1240-1280
(12.5-12.8)

≥ 899
( ≥ 11.3)

≥ 1990
( ≥ 25)

302-326
(38-41)

180 ℃

28EH

1040-1090
(10.4-10.9)

≥ 780
( ≥ 9.8)

≥ 2388
( ≥ 30)

207-231
(26-29)

200 ℃

30EH

1080-1130 (10.8-11.3)

≥ 812
( ≥ 10.2)

≥ 2388
( ≥ 30)

223-247
(28-31)

200 ℃

33EH

1130-1170
(11.3-11.7)

≥ 836
( ≥ 10.5)

≥ 2388
( ≥ 30)

247-271
(31-34)

200 ℃

35EH

1170-1220
(11.7-12.2)

≥ 876
( ≥ 11.0)

≥ 2388
( ≥ 30)

263-287
(33-36)

200 ℃

38EH

1220-1250
(12.2-12.5)

≥ 899
( ≥ 11.3)

≥ 2388
( ≥ 30)

287-310
(36-39)

200 ℃

Physical and Mechanical Properties of Sintered NdFeB magnet :

Thermal Conductivity

7.7 kcal/m-h-°C

Young’s Modulus

1.7 x 104 kg/mm2

Bending Strength

24 kg/mm2

Compressive Strength

80 kg/mm2

Electrical Resistivity

160 µ-ohm-cm/cm2

Density

7.4-7.55 g/cm3

Vickers Hardness

500 - 600

Available coatings for Sintered NdFeB magnet :

  Available Coatings:

Su rface

Coating

Thickness (Microns)

Color

Resistance

Passivation

 

1

Silver Grey

Temporary Protection

Nickel

Ni+Ni

10-20

Bright Silver

Excellent against Humidity

Ni+Cu+Ni

Zinc

Zn

8-20

Bright Blue

Good Against Salt Spray

C-Zn

Shinny Color

Excellent Against Salt Spray

Tin

Ni+Cu+Sn

15-20

Silver

Superior Against Humidity

Gold

Ni+Cu+Au

10-20

Gold

Superior Against Humidity

Copper

Ni+Cu

10-20

Gold

Temporary Protection

Epoxy

Epoxy

15-25

Black, Red, Grey

Excellent Against Humidity
& Salt Spray

Ni+Cu+Epoxy

Zn+Epoxy

Chemical

Ni

10-20

Silver Grey

Excellent Against Humidity

Parylene

Parylene

5-20

Grey

Excellent Against Humidity, Salt Spray. Superior Against Solvents, Gases, Fungi and Bacteria.
FDA Approved.

 

 

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