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Magnetic Properties of Different Permanent Magnets

Magnetic Properties of  Sintered NdFeB Magnet

Properties

Remanence

Coercive force

Intrinsic coercive force

Maximum energy product

Working temp

Unit

kGs

T

kOe

kA/m

MGOe

kJ/m3

Nom.

Min.

Nom.

Min.

Nom.

Min.

Nom.

Min.

Nom.

Min.

Nom.

Min.

No
Grade
kOe
kA/m

1

N30

11.2

10.8

1.12

1.08

10.5

10.0

836

796

≥12

≥955

30

28

239

223

≤80

2

N35

12.0

11.7

1.20

1.17

11.3

10.8

900

860

≥12

≥955

35

33

279

263

≤80

3

N38

12.6

12.2

1.26

1.22

11.5

11.3

915

900

≥12

≥955

38

36

303

287

≤80

4

N40

12.9

12.6

1.29

1.26

11.6

11.4

924

908

≥12

≥955

40

38

318

303

≤80

5

N42

13.1

12.9

1.31

1.29

11.8

11.5

939

915

≥12

≥955

42

40

342

326

≤80

6

N45

13.6

13.3

1.36

1.33

12.0

11.6

955

924

≥12

≥955

45

43

358

342

≤80

7

N48

14.0

13.8

1.40

1.38

10.8

10.2

860

810

≥11

≥875

48

46

383

367

≤80

8

N50

14.3

14.1

1.43

1.41

10.8

10.0

860

794

≥11

≥875

50

48

398

383

≤80

9

N52

14.5

14.2

1.45

1.42

10.8

10.0

860

794

≥11

≥875

52

50

414

398

≤60

10

N30M

11.2

10.8

1.12

1.08

10.5

10.0

836

794

≥14

≥1114

30

28

239

223

≤100

11

N35M

12.0

11.7

1.20

1.17

11.3

10.9

900

868

≥14

≥1114

35

33

279

263

≤100

12

N38M

12.6

12.2

1.26

1.22

11.8

11.3

939

900

≥14

≥1114

38

36

303

287

≤100

13

N40M

12.9

12.6

1.29

1.26

12.0

11.6

955

924

≥14

≥1114

40

38

318

303

≤100

14

N42M

13.2

12.9

1.32

1.29

12.4

12.0

987

955

≥14

≥1114

42

40

342

326

≤100

15

N45M

13.5

13.3

1.35

1.33

12.6

12.2

1003

971

≥14

≥1114

45

43

358

342

≤100

16

N48M

14.0

13.8

1.40

1.38

13.3

12.9

1059

1027

≥14

≥1114

48

46

383

367

≤100

17

N50M

14.3

14.0

1.43

1.40

13.5

13.1

1074

1042

≥14

≥1114

50

48

398

383

≤100

18

N52M

14.5

14.2

1.45

1.42

13.6

13.2

1082

1050

≥14

≥1114

52

50

414

398

≤80

19

N30H

11.2

10.8

1.12

1.08

10.5

10.0

836

794

≥17

≥1353

30

28

239

223

≤120

20

N33H

11.7

11.4

1.17

1.14

11.0

10.5

876

836

≥17

≥1353

33

31

263

247

≤120

21

N35H

12.0

11.7

1.20

1.17

11.3

10.9

900

868

≥17

≥1353

35

33

279

263

≤120

22

N38H

12.6

12.2

1.26

1.22

11.8

11.3

939

900

≥17

≥1353

38

36

303

287

≤120

23

N40H

12.8

12.6

1.28

1.26

12.0

11.6

955

924

≥17

≥1353

40

38

318

303

≤120

24

N42H

13.0

12.8

1.30

1.28

12.4

12.0

987

955

≥17

≥1353

42

40

342

326

≤120

25

N45H

13.5

13.3

1.35

1.33

12.6

12.2

1003

971

≥17

≥1353

45

43

358

342

≤120

26

N48H

14.0

13.8

1.40

1.38

13.3

12.9

1059

1027

≥17

≥1353

48

46

383

367

≤120

27

N50H

14.3

14.0

1.43

1.40

13.5

13.1

1074

1042

≥17

≥1353

50

48

398

383

≤100

28

N52H

14.5

14.2

1.45

1.42

13.6

13.2

1082

1050

≥17

≥1353

52

50

414

398

≤100

29

N30SH

11.2

10.8

1.12

1.08

10.5

10.1

836

804

≥20

≥1595

30

28

239

223

≤150

30

N33SH

11.7

11.4

1.17

1.14

11.0

10.6

876

844

≥20

≥1595

33

31

263

247

≤150

31

N35SH

12.0

11.7

1.20

1.17

11.3

11.0

900

876

≥20

≥1595

35

33

279

263

≤150

32

N37SH

12.3

12.0

1.23

1.20

11.5

11.3

915

900

≥20

≥1595

37

35

295

279

≤150

33

N38SH

12.5

12.2

1.25

1.22

11.8

11.4

939

908

≥20

≥1595

38

36

303

287

≤150

34

N40SH

12.7

12.5

1.27

1.25

12.1

11.8

963

939

≥20

≥1595

40

38

318

303

≤150

35

N42SH

13.0

12.8

1.30

1.28

12.4

12.0

987

955

≥20

≥1595

42

40

342

326

≤150

36

N45SH

13.5

13.3

1.35

1.33

12.6

12.2

1003

971

≥20

≥1595

45

43

358

342

≤150

37

N48SH

14.0

13.8

1.40

1.38

13.3

12.9

1059

1027

≥20

≥1595

48

46

383

367

≤130

38

N25UH

10.0

9.6

1.00

0.96

9.6

9.2

764

732

≥25

≥1990

25

22

199

175

≤180

39

N28UH

10.8

10.4

1.08

1.04

10.2

9.8

812

780

≥25

≥1990

28

26

223

207

≤180

40

N30UH

11.2

10.8

1.12

1.08

10.6

10.1

844

804

≥25

≥1990

30

28

239

223

≤180

41

N33UH

11.5

11.3

1.15

1.13

11.0

10.6

876

844

≥25

≥1990

33

31

263

247

≤180

42

N35UH

11.9

11.7

1.19

1.17

11.3

11.0

900

876

≥25

≥1990

35

33

279

263

≤180

43

N38UH

12.5

12.2

1.25

1.22

11.8

11.4

939

908

≥25

≥1990

38

36

303

287

≤180

44

N40UH

12.7

12.5

1.27

1.25

12.2

11.8

971

939

≥25

≥1990

40

38

318

303

≤180

45

N42UH

13.0

12.8

1.30

1.28

12.4

12.0

987

955

≥25

≥1990

42

40

342

326

≤180

46

N45UH

13.5

13.3

1.35

1.33

12.6

12.2

1003

971

≥25

≥1990

45

43

358

342

≤180

47

N28EH

10.8

10.4

1.08

1.04

10.4

9.8

811

780

≥30

≥2388

28

26

223

207

≤200

48

N30EH

11.2

10.8

1.12

1.08

10.6

10.1

844

804

≥30

≥2388

30

28

239

223

≤200

49

N33EH

11.5

11.3

1.15

1.13

11.0

10.6

876

844

≥30

≥2388

33

31

263

247

≤200

50

N35EH

11.9

11.7

1.19

1.17

11.3

11.0

900

876

≥30

≥2388

35

33

279

263

≤200

51

N38EH

12.4

12.2

1.24

1.22

11.8

11.4

939

908

≥30

≥2388

38

36

303

287

≤200

52

N40EH

12.7

12.4

1.27

1.24

12.2

11.8

971

939

≥30

≥2388

40

38

318

303

≤200

53

N28AH

10.8

10.4

1.08

1.04

10.4

9.8

811

780

≥33

≥2626

28

26

223

207

≤220

54

N30AH

11.2

10.8

1.12

1.08

10.6

10.1

844

804

≥33

≥2626

30

28

239

223

≤220

55

N33AH

11.5

11.3

1.15

1.13

11.0

10.6

876

844

≥33

≥2626

33

31

263

247

≤220

56

N35AH

11.9

11.7

1.19

1.17

11.5

11.0

915

876

≥33

≥2626

35

33

279

263

≤220

57

N38AH

12.4

12.2

1.24

1.22

11.8

11.4

939

908

≥33

≥2626

37

35

294

279

≤220

58

N40AH

12.7

12.4

1.27

1.24

12.1

11.8

971

939

≥33

≥2626

39

37

310

294

≤220

Magnetic Properties of  Sintered SmCO Magnet

Grade Residual Fulx Coercive Force Intrinsic Coercive Force Max. Energy Product
Br Hcb Hcj (BH)max
KGs T KOe KA/m KOe KA/m MGOe KJ/m3
SmCO5 SM-16A 8.0-9.0 0.80-0.90 7.7-8.8 613-700 18.0-30.0 1430-2388 16±2 127±16
SM-18A 8.4-9.7 0.84-0.97 8.2-9.4 653-748 15.0-22.0 1194-1751 18±2 143±16
Sm2Co17 SM-24A 10.0-10.6 1.00-1.06 8.0-9.5 637-756 20.0-28.0 1592-2229 24±2 191±16
SM-24B 10.0-10.6 1.00-1.06 6.2-8.0 494-637 7.0-11.0 557-876 24±2 191±16
SM-26A 10.2-10.8 1.02-1.08 8.5-10.2 677-812 20.0-28.0 1592-2229 26±2 207±16
SM-26B 10.2-10.8 1.02-1.08 8.0-9.5 637-756 9.0-18.0 717-1433 26±2 207±16
SM-28A 10.5-11.0 1.05-1.10 8.5-10.3 677-812 20.0-28.0 1592-2229 28±2 223±16
SM-30A 10.7-11.5 1.07-1.15 8.5-10.5 677-836 20.0-28.0 1592-2229 29±2 231±16
SM-30B 10.7-11.5 1.07-1.15 7.5-9.5 597-756 9.0-18.0 717-1433 29±2 231±16
SM-32A 11.0-12.0 1.10-1.20 9.5-10.5 756-836 20.0-28.0 1592-2229 30±2 239±16
SM-32B 11.0-12.0 1.10-1.20 7.0-9.5 557-756 8.5-15.0 677-1195 30±2 239±16

Magnetic Propertis of Ferrite Magnets

Specifications:Chinese Standard of Ferrite Magnets  

Material
code
Remanence
Coercivity
Intrinsic
Max.Energy Product
(BH)max
Coercivity
Br
Hcb
Hcj
MT
KG
KA/m
KOe
KA/m
KOe
KJ/m3
MGOe
Y8T
200~235
2.0~2.35
125~160
1.57~2.01
210~280
2.64~3.52
6.5~9.5
0.8~1.2
Y20
320~380
3.2~3.8
135~190
1.70~2.38
140~195
1.76~2.45
18.0~22.0
2.3~2.8
Y22H
310~360
3.1~3.6
220~250
2.77~3.14
280~320
3.52~4.02
20.0~24.0
2.5~3.0
Y23
320~370
3.2~3.7
170~190
2.14~2.38
190~230
2.39~2.89
20.0~25.5
2.5~3.2
Y25
360~400
3.6~4.0
135~170
1.70~2.14
140~200
1.76~2.51
22.5~28.0
2.8~3.5
Y26H
360~390
3.6~3.9
220~250
2.77~3.14
225~255
2.83~3.21
23.0~28.0
2.9~3.5
Y27H
370~400
3.7~4.0
205~250
2.58~3.14
210~255
2.64~3.21
25.0~29.0
3.1~3.7
Y28
370~400
3.7~4.0
175~210
2.20~2.64
180~220
2.26~2.77
26.0~30.0
3.3~3.8
Y30H-1
380~400
3.8~4.0
230~275
2.89~3.46
235~290
2.95~3.65
27.0~32.0
3.4~4.1
Y30H-2
395~415
3.95~4.15
275~300
3.46~3.77
310~335
3.90~4.21
28.5~32.5
3.5~4.0
Y32
400~420
4.0~4.2
160~190
2.01~2.38
165~195
2.07~2.45
30.0~33.5
3.8~4.2
Y33
410~430
4.1~4.3
220~250
2.77~3.14
225~255
2.83~3.21
31.5~35.0
4.0~4.4

USA standard of Ferrite Magnets

Material
code
Remanence
Coercivity
Intrinsic
Coercivity
Max.Energy Product
(BH)max
Br
Hcb
Hcj
MT
KG
KA/m
KOe
KA/m
KOe
KJ/m3
MGOe
C1
230
2.3
148
1.86
258
3.5
8.36
1.05
C5
380
3.8
191
2.4
199
2.5
27
3.4
C7
340
3.4
258
3.23
318
4.00
21.9
2.75
C8A
385
3.85
235
2.95
242
3.05
27.8
3.5
C8B
420
4.2
232
2.913
236
2.96
32.8
4.12
C9
380
3.8
280
3.516
320
4.01
26.4
3.32
C10
400
4.0
288
3.617
280
3.51
30.4
3.82
C11
430
4.3
200
2.512
204
2.56
34.4
4.32


Special Ferrite Segment Magnetic Prpoperties table

Grade Mag Spring MS Y30 MS Y35H-1 MS Y35H-2 MS Y35H-3 MS Y35H-4H
MMPA C8 C8D C8B
TDK FB4B FB4D FB4G
Br Type 395(3950) 405(4050) 400(4000) 415(4150) 380(3800)
mT(Gs) min 385(3850) 395(3950) 390(3900) 405(4050) 370(3700)
Hcb Type 200(2500) 255(3200) 279(3500) 235(2950) 286(3600)
KA/m(Oe) min 176(2200) 251(3150) 236(3300) 223(2800) 270(3400)
Hcj Type 205(2570) 263(3300) 287(3600) 243(3050) 342(4300)
KA/m(Oe) min 184(2300) 255(3200) 275(3450) 231(2900) 326(4100)
(BH)max Type 29.0(3.7) 31.2(3.9) 30.4(3.87) 32.8(4.1) 27.2(3.4)
KJ/m 3
(MGOe) min 27.5(3.45) 29.6(3.7) 28.8(3.6) 30.2(3.8) 25.6(3.2)
Grade Mag spring MS Y38B MS Y38H MS Y40E MS Y40B MS Y45E MS Y45B
MMPA C12 C9
TDK FB5B FB5H FB6E FB6B FB9H FB6N
Br Type 420(4200) 405(4050) 380(3800) 420(4200) 430(4300) 440(4400)
mT(Gs) min 410(4100) 395(3950) 370(3700) 410(4100) 420(4200) 430(4300)
Hcb Type 263(3300) 298(3750) 290(3650) 302(3800) 330(4150) 259(3250)
KA/m(Oe) min 251(3150) 287(3600) 279(3500) 290(3650) 318(4000) 247(3100)
Hcj Type 267(3350) 322(4050) 398(5000) 318(4000) 398(5000) 263(3300)
KA/m(Oe) min 255(3200) 311(3900) 382(4800) 307(3850) 386(4850) 251(3150)
(BH)max Type 33.4(4.2) 31.1(3.9) 27.5(3.4) 33.5(4.2) 35.0(4.4) 36.7(4.6)
KJ/m 3
(MGOe) min 31.8(4.0) 29.5(3.7) 25.6(3.2) 32.6(4.0) 33.5(4.2) 35.1(4.4)

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