|
Neodymium-Iron-Boron (Nd-Fe-B)
Magnets: Magnetic Properties
|
|
GRADE
|
Residual Induction
Br
|
Coercive
Force(bHc)
|
Intrinsic Coercive
Force(iHc)
|
Energy Product
(BH)max
|
|
kGs
|
T
|
kOe
≥
|
kA/m
≥
|
kOe
≥
|
kA/m
≥
|
MGOe
|
kJ/m³
|
|
Max
|
Min
|
Max
|
Min
|
Max
|
Min
|
Max
|
Min
|
|
N-35
|
12.5
|
11.8
|
1.25
|
1.18
|
10.8
|
859
|
12
|
955
|
36
|
34
|
286
|
270
|
|
N-38
|
13
|
12.3
|
1.3
|
1.23
|
10.8
|
859
|
12
|
955
|
39
|
37
|
310
|
294
|
|
N-40
|
13.2
|
12.6
|
1.32
|
1.26
|
10.5
|
836
|
12
|
955
|
41
|
39
|
326
|
310
|
|
N-42
|
13.5
|
13
|
1.35
|
1.3
|
10.5
|
836
|
12
|
955
|
43
|
41
|
342
|
326
|
|
N-45
|
13.8
|
13.2
|
1.38
|
1.32
|
10.5
|
836
|
11
|
875
|
46
|
44
|
366
|
350
|
|
N-48
|
14.1
|
13.7
|
1.41
|
1.37
|
10.5
|
836
|
11
|
875
|
49
|
47
|
390
|
373
|
|
N-50
|
14.3
|
14
|
1.43
|
1.4
|
10.5
|
836
|
11
|
875
|
51
|
48
|
415
|
388
|
|
N-33M
|
12.2
|
11.4
|
1.22
|
1.14
|
10.7
|
851
|
14
|
1114
|
33
|
31
|
262
|
246
|
|
N-35M
|
12.5
|
11.8
|
1.25
|
1.18
|
11
|
875
|
14
|
1114
|
36
|
34
|
286
|
270
|
|
N-38M
|
13
|
12.3
|
1.3
|
1.23
|
11.5
|
915
|
14
|
1114
|
39
|
37
|
310
|
294
|
|
N-42M
|
13.5
|
13
|
1.35
|
1.3
|
12
|
955
|
14
|
1114
|
43
|
40
|
342
|
326
|
|
N-45M
|
13.8
|
13.2
|
1.38
|
1.32
|
12.2
|
955
|
14
|
1114
|
46
|
43
|
366
|
350
|
|
N-48M
|
14.1
|
13.7
|
1.41
|
1.37
|
12.4
|
950
|
14
|
1114
|
49
|
46
|
390
|
370
|
|
N-30H
|
11.7
|
10.9
|
1.17
|
1.09
|
10.2
|
812
|
17
|
1353
|
31
|
28
|
246
|
230
|
|
N-33H
|
12.2
|
11.4
|
1.22
|
1.14
|
10.7
|
851
|
17
|
1353
|
33
|
31
|
270
|
246
|
|
N-35H
|
12.5
|
11.8
|
1.25
|
1.18
|
11
|
875
|
17
|
1353
|
36
|
34
|
286
|
270
|
|
N-38H
|
13
|
12.3
|
1.3
|
1.23
|
11.5
|
915
|
17
|
1353
|
39
|
36
|
310
|
294
|
|
N-41H
|
13.2
|
12.6
|
1.32
|
1.26
|
11.8
|
939
|
16
|
1273
|
42
|
38
|
334
|
302
|
|
N-45H
|
13.7
|
13
|
1.37
|
1.3
|
12.1
|
963
|
16
|
1273
|
46
|
43
|
358
|
342
|
|
N-48H
|
14.1
|
13.6
|
1.41
|
1.36
|
12.4
|
997
|
16
|
1273
|
50
|
46
|
370
|
355
|
|
N-30SH
|
11.7
|
10.9
|
1.17
|
1.09
|
10.2
|
812
|
21
|
1592
|
31
|
28
|
255
|
223
|
|
N-33SH
|
12.2
|
11.4
|
1.22
|
1.14
|
10.7
|
851
|
21
|
1592
|
34
|
31
|
279
|
247
|
|
N-35SH
|
12.5
|
11.5
|
1.25
|
1.18
|
11
|
875
|
21
|
1592
|
36
|
34
|
295
|
279
|
|
N-39SH
|
13
|
12.5
|
1.3
|
1.25
|
11.6
|
923
|
21
|
1592
|
40
|
37
|
318
|
312
|
|
N-42SH
|
13.5
|
13
|
1.35
|
1.3
|
12
|
955
|
20
|
1562
|
43
|
39
|
325
|
318
|
|
N-25UH
|
10.7
|
9.8
|
1.07
|
0.98
|
9.8
|
732
|
25
|
1989
|
27
|
23
|
215
|
183
|
|
N-28UH
|
11.3
|
10.5
|
1.13
|
1.05
|
10.2
|
780
|
25
|
1989
|
30
|
26
|
239
|
207
|
|
N-30UH
|
11.7
|
10.9
|
1.17
|
1.09
|
10.5
|
812
|
25
|
1989
|
31
|
28
|
255
|
223
|
|
N-33UH
|
12.2
|
11.7
|
1.22
|
1.17
|
10.7
|
836
|
25
|
1989
|
34
|
31
|
262
|
246
|
|
| |
|
Nd-Fe-B Magnets : Physical Properties
|
|
Grade
|
N35~N50
|
33M~48M
|
33H~48H
|
30SH~42SH
|
25UH~33UH
|
|
Temperature
Coefficient
|
Br(%℃) |
-0.12
|
-0.12
|
-0.12
|
-0.12
|
-0.12
|
iHc(%℃) |
-0.60
|
-0.60
|
-0.60
|
-0.60
|
-0.60
|
|
Density (g/cm³)
|
7.4~7.5
|
7.4~7.5
|
7.4~7.5
|
7.4~7.5
|
7.4~7.5
|
Curie
Temperature (Tc ℃) |
310
|
320
|
320~340
|
320~340
|
330~350
|
|
Vickers Hardness (Hv)
|
500~600
|
500~600
|
500~600
|
500~600
|
500~600
|
Working
Temperature (℃) |
≤80 |
≤100 |
≤120 |
≤150 |
≤180 |
|
| |
|
Bonded Nd-Fe-B : Magnetic Properties |
|
Residual Induction
(Br) |
Coercive Force
(bHc) |
Intrinsic Coercive
Force (iHc) |
Energy Product
(BH)max |
|
B-N4
|
600~700mT |
160~240kA/m |
240~440kA/m |
29~36kJ/m³ |
|
6000~7000Gs |
2000~3000Oe |
3000~5500Oe |
3.6~4.5MGOe |
|
B-N6 |
500~600mT |
300~360kA/m |
640~800kA/m |
40~56kJ/m³ |
|
5000~6000Gs |
3800~4500Oe |
8000~10000Oe |
5~7MGOe |
|
B-N-8 |
600~670mT |
360~440kA/m |
640~880kA/m |
60~68kJ/m³ |
|
6000~6700Gs |
4500~5500Oe |
8000~11000kA/m |
7.5~8.5MGOe |
|
B-N-8H |
560~650mT |
400~464kA/m |
960~1360kA/m |
60~72kJ/m³ |
|
5600~6500Gs |
5000~5800Oe |
13000~17000Oe |
7.5~9.0MGOe |
|
B-N10 |
650~700mT |
400~440kA/m |
640~880kA/m |
68~80kJ/m³ |
|
6500~7000Gs |
5000~5500Oe |
8000~11000Oe |
8.5~10MGOe |
|
B-N12 |
700~800mT |
416~480kA/m |
640~880kA/m |
80~96kJ/m³ |
|
7000~8000Gs |
5200~6000Oe |
8000~11000Oe |
10~12MGOe |
|
| |
|
Bonded Nd-Fe-B : Physical Properties |
|
Material |
Density
g/cm³ |
Brinell
Hardness
HRB |
Temperature
Coefficient
% |
Curie
Temperature |
Working
Temperature |
Saturation
Magnetizing
Force
kA/m |
Coating
цm |
|
B-N4 |
4.5~5 |
40~45 |
-0.1 |
400 |
100 |
1600 |
20~30 |
|
B-N6 |
5.5~5.8 |
40~45 |
-0.1 |
400 |
100 |
1600 |
20~30 |
|
B-N8 |
5.8~6.0 |
35~38 |
-0.1 |
400 |
90 |
2000 |
20~30 |
|
B-N8H |
5.6~6.0 |
35~38 |
-0.13 |
305 |
100 |
2800 |
20~30 |
|
B-N10 |
6.0~6.2 |
35~38 |
-0.1 |
360 |
80 |
1600 |
20~30 |
|
B-N12 |
6.2~6.4 |
35~38 |
-0.1 |
360 |
80 |
1600 |
20~30 |
|
| |
|
Samarium-Cobalt (SmCo) : Magnetic
Properties
|
|
Material |
Grade |
Residual Induction
Br
|
Coercive Force
bHc
|
Intrinsic Coercive
Force iHc
|
Energy Product
(BH)max
|
|
T
|
kGs
|
kA/m
|
kOe
|
kA/m
|
kOe
|
kJ/m³
|
MGOe
|
|
Sintered SmCo
|
|
SmCo 1:5
|
SmCo-18
|
0.85
|
8.5
|
620
|
7.8
|
1350
|
17
|
145~150
|
17~19
|
|
SmCo-20
|
0.9~0.96
|
9~9.6
|
635~717
|
8.2~9
|
1194~1513
|
15~19
|
150~175
|
19~22
|
|
SmCo-24
|
1
|
10
|
680
|
8.5
|
1195
|
15
|
175~190
|
22~24
|
|
SmCo-26
|
1.02
|
10.2
|
750
|
9.5
|
1195
|
15
|
195~215
|
24~26
|
|
SmCo2:17
|
SmCo-24H
|
0.95~1.02
|
9.5~10.2
|
637~732
|
8~9.2
|
1433~1990
|
18~25
|
195~215
|
22~24
|
|
SmCo-26H
|
1.02~1.05
|
10.2~10.5
|
748~796
|
9.4~10
|
1433~1990
|
18~25
|
195~215
|
24~26
|
|
SmCo-28H
|
1.05~1.08
|
10.5~10.8
|
756~796
|
9.5~10
|
1433~1831
|
18~23
|
205~220
|
24~26
|
|
SmCo-30
|
1.08
|
10.8
|
780
|
9.8
|
955
|
15
|
220~240
|
28~30
|
|
Bonded SmCo
|
|
SmCo 1:5
|
B-SmCo-6
|
0.4
|
4
|
280
|
3.5
|
800
|
10
|
30~50
|
4~6
|
|
B-SmCo-8
|
0.5
|
5
|
320
|
4
|
800
|
10
|
50~65
|
6~8
|
|
SmCo2:17
|
B-SmCo-10
|
0.6
|
6
|
360
|
4.5
|
800
|
10
|
65~80
|
8~10
|
|
B-SmCo-12
|
0.7
|
7
|
400
|
5
|
800
|
10
|
80~95
|
10~12
|
|
| &n |
