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Products Showroom >> Ndfeb Magnet
Magnetic properties of Sintered NdFeB Magnets

Sintered Magnet: is one of the high performance rare earth permanent magnets, which use neodymium (Nd), iron (Fe), and boron (B) as their main ingredients and is susceptible to demagnetization when exposed to elevated temperatures. There are many grades which can withstand high temperatures, but several factors will dictate the performance of the Neodymium magnet. There are Sintered NdFeB, Sintered AlNiCo, Sintered SmCo and Sintered Ferrite.

NdFeB Magnet
Type
Remanence Br
Coercive Force Hcb
Intrinsic Coercive force Hci
Max Energy Product
(BH) max
Working Temp
No
Material
KG
T
KOe
KA/m
KOe
KA/m
MGOe
KJ/m
℃
1
N-33
11.4-11.8
1.14-1.18
≥10.5
≥836
≥12
≥955
31-33
247-263
80
2
N-35
11.4-11.8
1.18-1.28
≥10.8
≥836
≥12
≥955
33-36
263-287
80
3
N-38
11.8-12.3
1.18-1.28
≥10.8
≥860
≥12
≥955
36-39
287-310
80
4
N-40
12.7-12.9
1.27-1.29
≥11.0
≥876
≥12
≥955
38-41
303-326
80
5
N-42
12.9-13.3
1.29-1.33
≥10.5
≥836
≥12
≥955
40-43
318-342
80
6
N-45
13.3-13.8
1.33-1.38
≥9.5
≥756
≥12
≥955
43-46
342-366
80
7
N48
13.7-14.2
1.37-1.42
10.5-13
836-1035
≥11
≥875
46-49
366-390
80
8
N50
13.9-14.5
1.39-1.45
10.5-13
836-1035
≥11
≥875
47-51
374-406
60
9
N52
14.2-14.7
1.42-1.47
10.5-13
836-1035
≥11
≥875
48-53
406-430
60
10
N-30M
10.8-11.4
1.08-1.14
≥9.8
≥780
≥14
≥1114
28-31
223-247
100
11
N-33M
11.4-11.8
1.14-1.18
≥10.3
≥820
≥14
≥1114
31-33
247-263
100
12
N-35M
11.8-12.3
1.18-1.23
≥10.8
≥860
≥14
≥1114
33-36
263-287
100
13
N-38M
12.3-12.7
1.23-1.27
≥11.0
≥876
≥14
≥1114
38-41
303-326
100
14
N-40M
12.7-12.9
1.27-1.29
≥11.4
≥907
≥14
≥1114
38-41
303-326
100
15
N42M
12.8-13.4
1.28-1.34
10.8-11.4
859-907
≥14
≥1114
40-43
319-343
100
16
N45M
13.3-13.8
1.33-1.38
12.4-13.4
987-1066
≥14
≥1114
43-46
343-366
100
17
N48M
13.7-14.2
1.37-1.42
12.8-13.8
1020-1098
≥14
≥1114
46-49
366-390
100
18
N-30H
10.8-11.4
1.08-1.14
≥10.2
≥812
≥17
≥1353
28-31
223-247
120
19
N-33H
11.4-11.8
1.14-1.18
≥10.6
≥844
≥17
≥1353
31-33
247-263
120
20
N-35H
11.8-12.3
1.18-1.28
≥11.0
≥876
≥17
≥1353
33-36
263-287
120
21
N-38H
12.3-12.7
1.23-1.27
≥11.2
≥890
≥17
≥1353
36-39
287-310
120
22
N-40H
12.7-12.9
1.27-1.29
≥11.5
≥915
≥17
≥1353
38-41
303-326
120
23
N-42H
12.8-13.4
1.28-1.34
≥12
≥955
≥17
≥1353
40-43
318-342
120
24
N-45H
13.3-13.8
1.33-1.38
≥12.4
≥986
≥17
≥1353
43-46
342-366
120
25
N-48H
13.6-14.2
1.36-1.42
≥12.8
≥1018
≥16
≥1273
45-49
358-390
120
26
N-30SH
10.8-11.4
1.081.14
≥10.0
≥796
≥21
≥1672
28-31
223-247
150
27
N-33SH
11.4-11.8
1.14-1.18
≥10.5
≥836
≥21
≥1672
31-34
247-276
150
28
N-35SH
11.8-12.3
1.18-1.23
≥11.0
≥876
≥21
≥1672
33-36
263-278
150
29
N-38SH
12.3-12.7
1.23-1.27
≥11.4
≥907
≥21
≥1672
36-39
278-310
150
30
N-42SH
12.8-13.4
1.28-1.34
≥12
≥955
≥20
≥1592
39-42
310-334
150
31
N-28UH
10.5-10.8
1.05-1.08
≥9.5
≥756
≥21
≥1672
26-29
207-231
180
32
N-30UH
10.8-11.4
1.08-1.14
≥9.5
≥756
≥25
≥1990
28-31
223-247
180
33
N-33UH
11.4-12.1
1.14-1.21
≥10.1
≥804
≥25
≥1990
31-34
247-271
180
34
N-35UH
11.7-12.4
1.17-1.24
≥10.5
≥836
≥25
≥1990
33-36
263-287
180
35
N-38UH
12.2-12.9
1.22-1.29
≥11
≥875
≥25
≥1990
36-39
287-310
180
36
N-40UH
12.5-13.3
1.25-1.33
≥11.3
≥899
≥25
≥1990
38-41
302-326
180
37
N-28EH
10.5-10.8
1.05-1.08
≥9.5
≥756
≥25
≥2388
26-29
207-231
200
38
N-30EH
10.8-11.4
1.08-1.14
≥9.5
≥756
≥30
≥2388
28-31
223-241
200
39
N-33EH
11.4-12.1
1.14-1.21
≥10.7
≥852
≥30
2388
31-35
247-379
200
40
N-35EH
11.7-12.4
1.17-1.24
≥10.9
≥868
≥30
≥2388
33-37
263-295
200
41
N-38EH
12.2-12.9
1.22-1.29
≥11.5
≥915
≥30