Sintered NdFeb Magnets
   

NdFeB magnet is mainly made of Neodymium Iron and Boron,with excellent magnetic property abundant raw material and reasonable prices,NdFeB Magnet can be used as an ideal magnet in mini-motor Permanent magnetic resonance sound device magnetic suspension system,magnetic transmission machine and iatrical apparatus and etc.For NdFeB,its surface is usually treatd with some special methods.The surface treatment method include Zine Nickel Tin Silver Gold plating Phosphor and Spray Epoxy Resin etc.

Wide Applications
With its excellent magnetic property, abundant raw material and reasonable prices, rare-earth permanent magnet can be used as an ideal magnet in mini-motor, permanent-magnet instrument,electronic industry, auto industry, petro-chemical industry,nuclear magnetic resonance,sound device, magnetic suspension system, magnetic transmission machine and magnetotherapy apparatus etc.
NdFebB Other Physical Properites:
Temp.Coeff.Of Br: -0.11%/°C
Density: 7.4g/cm 3
Vickers Hardness: 600Hv
Tensile Strength: 8.0kg/mm 2
Specific Heat: 0.12k Cak(kg°C)
Young’s Modulus: 1.6×10 11 N/m 2
Poisson’s Ratio: 0.24
Curie Temperature: 310-340°C
Electrical Resistivity: 144O.cm
Flexural Strength: 25kg/mm 2
Coeff.of Thermal Expansion: 4×10 -6 /°C
Thermal conductivity: 7.7cal/m.h.°C
Rigidity: 0.64N/m 2
Compressibility: 9.8×10 -12 m 2 /N
Temp.Coeff.Of iHc: -0.60%/°C
Surface Treatment Method:
Zinc Nickel Tin Phosphor Silver or Gold Plating Spray Coating Epoxy Resin

牌号

Grade

Br

Hcj最小值

Hcb最小值

(BH)max

最高工作温度

Max working temperatue(℃)

T

kGs

kA/m

kOe

kA/m

kOe

kJ/m3

MGOe

N30

1.08～1.13

10.8～11.3

955

12.0

796

10.0

223～247

28～31

80

N33

1.13～1.17

11.3～11.7

955

12.0

836

10.5

247～263

31～33

80

N35

1.17～1.22

11.7～12.2

955

12.0

868

10.9

263～287

33～36

80

N38

1.22～1.25

12.2～12.5

955

12.0

899

11.3

287～310

36～39

80

N40

1.25～1.28

12.5～12.8

955

12.0

923

11.6

302～326

38～41

80

N42

1.28～1.32

12.8～13.2

955

12.0

923

11.6

318～342

40～43

80

N45

1.32～1.38

13.2～13.8

955

12.0

876

11.0

342～366

43～46

80

N48

1.37～1.42

13.7～14.2

955

12.0

892

11.2

366～390

46～49

80

N50

1.39～1.44

13.9～14.4

876

11.0

836

10.5

374～406

47～51

60

N52

1.42～1.47

14.2～14.7

876

11.0

836

10.5

390～422

49～53

60

30M

1.08～1.13

10.8～11.3

1114

14.0

796

10.0

223～247

28～31

100

33M

1.13～1.17

11.3～11.7

1114

14.0

836

10.5

247～263

31～33

100

35M

1.17～1.22

11.7～12.2

1114

14.0

868

10.9

263～287

33～36

100

38M

1.22～1.25

12.2～12.5

1114

14.0

899

11.3

287～310

36～39

100

40M

1.25～1.28

12.5～12.8

1114

14.0

923

11.6

302～326

38～41

100

42M

1.28～1.32

12.8～13.2

1114

14.0

955

12.0

318～342

40～43

100

45M

1.32～1.38

13.2～13.8

1114

14.0

995

12.5

342～366

43～46

100

48M

1.36～1.42

13.6～14.2

1114

14.0

1019

12.8

358～390

45～49

100

50M

1.39～1.44

13.9～14.4

1114

14.0

1035

13.0

374～406

47～51

100

30H

1.08～1.13

10.8～11.3

1353

17.0

796

10.0

223～247

28～31

120

33H

1.13～1.17

11.3～11.7

1353

17.0

836

10.5

247～271

31～34

120

35H

1.17～1.22

11.7～12.2

1353

17.0

868

10.9

263～287

33～36

120

38H

1.22～1.25

12.2～12.5

1353

17.0

899

11.3

287～310

36～39

120

40H

1.25～1.28

12.5～12.8

1353

17.0

923

11.6

302～326

38～41

120

42H

1.28～1.32

12.8～13.2

1353

17.0

955

12.0

318～342

40～43

120

45H

1.32～1.38

13.2～13.8

1353

17.0

971

12.2

342～366

43～46

120

48H

1.36～1.42

13.6～14.2

1353

17.0

1027

12.9

358～390

45～49

120

30SH

1.08～1.13

10.8～11.3

1592

20.0

804

10.1

223～247

28～31

150

33SH

1.13～1.17

11.3～11.7

1592

20.0

844

10.6

247～271

31～34

150

35SH

1.17～1.22

11.7～12.2

1592

20.0

876

11.0

263～287

33～36

150

38SH

1.22～1.25

12.2～12.5

1592

20.0

907

11.4

287～310

36～39

150

40SH

1.25～1.28

12.5～12.8

1592

20.0

939

11.8

302～326

38～41

150

42SH

1.28～1.32

12.8～13.2

1592

20.0

971

12.2

318～342

40～43

150

45SH

1.32～1.38

13.2～13.8

1592

20.0

979

12.3

342～366

43～46

150

28UH

1.02～1.08

10.2～10.8

1990

25.0

764

9.6

207～231

26～29

180

30UH

1.08～1.13

10.8～11.3

1990

25.0

812

10.2

223～247

28～31

180

33UH

1.13～1.17

11.3～11.7

1990

25.0

852

10.7

247～271

31～34

180

35UH

1.17～1.22

11.7～12.2

1990

25.0

860

10.8

263～287

33～36

180

38UH

1.22～1.25

12.2～12.5

1990

25.0

876

11.0

287～310

36～39

180

40UH

1.25～1.28

12.5～12.8

1990

25.0

915

11.5

302～326

38～41

180

28EH

1.04～1.09

10.4～10.9

2388

30.0

780

9.8

207～231

26～29

200

30EH

1.08～1.13

10.8～11.3

2388

30.0

812

10.2

223～247

28～31

200

33EH

1.13～1.17

11.3～11.7

2388

30.0

820

10.3

247～271

31～34

200

35EH

1.17～1.22

11.7～12.2

2388

30.0

836

10.5

263～287

33～36

200

38EH

1.20～1.25

12.0～12.5

2388

30.0

915

11.5

279～310

35～39

200