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Sintered NdFeB
Permanent Magnetic Material
(1) Characteristics and
Typical Applications
 This kind of magnetic
materials provides the highest available magnetic energies of any
material. It enjoys high energy product, residual induction and
coercive force. And its price is comparatively low. Despite all
those advantages, its temperature coefficient is bad compared with
the AlNiCo and SmCo magnet.
Sintered NdFeB is being
used to produce magnetic motors, sensors, automobile meters,
magnetic machines, electroacooustic and telecommunication devices.
(2)
Magnetic Properties
|
Grade |
Remanence Br |
Coercivity Hcb |
Intrinsic Coercivity
Hcj |
Max. Energy Product
(BH)max |
Max. Working Temp. |
|
mT |
kGs |
kA/m |
kOe |
kA/m |
kOe |
kJ/m3 |
MGOe |
¡æ |
|
N30 |
1080-1150 |
10.8-11.5 |
796-860 |
10.0-10.8 |
¡Ý995 |
¡Ý12.0 |
223-247 |
28-31 |
80 |
|
N33 |
1130-1170 |
11.3-11.7 |
844-884 |
10.6-11.1 |
¡Ý995 |
¡Ý12.0 |
247-263 |
31-33 |
80 |
|
N35 |
1170-1220 |
11.7-12.2 |
876-915 |
11.0-11.5 |
¡Ý995 |
¡Ý12.0 |
263-279 |
33-35 |
80 |
|
N37 |
1200-1280
|
12.0-12.8 |
900-955
|
11.2-12.0
|
¡Ý995 |
¡Ý12.0 |
279-303
|
35-38
|
80 |
|
N40 |
1250-1300
|
12.5-13.0
|
900-955
|
11.2-12.5 |
¡Ý995 |
¡Ý12.0 |
294-318
|
37-40
|
80 |
|
N42 |
1300-1350 |
13.0-13.4
|
900-955
|
11.2-12.5 |
¡Ý995 |
¡Ý12.0 |
318-342
|
40-43
|
80 |
|
N30H |
1080-1150
|
10.8-11.5
|
796-860
|
10.0-10.8
|
¡Ý1353
|
¡Ý17.0
|
223-247
|
28-31
|
120 |
|
N33H |
1120-1160
|
11.2~11.6 |
820-907
|
10.3-11.4 |
¡Ý1353
|
¡Ý17.0
|
247-263
|
31-33
|
120 |
|
N35H |
1170-1210
|
11.7-12.1
|
860-915 |
10.8-11.5
|
¡Ý1353
|
¡Ý17.0
|
263-279
|
33-35
|
120 |
|
N38H |
1240-1280
|
12.4-12.8
|
900-995
|
11.2-12.5
|
¡Ý1353
|
¡Ý17.0
|
286-310
|
36-39
|
120 |
|
N27SH |
1120-1100
|
10.2-11.0 |
764-836
|
9.6-10.5
|
¡Ý1592
|
¡Ý20.0
|
199-223
|
25-28
|
150 |
|
N30SH |
1080-1150
|
10.8-11.5
|
796-860 |
10.0-10.8
|
¡Ý1592
|
¡Ý20.0
|
223-247
|
28-31
|
150 |
|
N33SH |
1140-1170
|
11.4-11.7
|
820-876
|
10.3-11.0
|
¡Ý1592
|
¡Ý20.0
|
247-263
|
31-33 |
150 |
|
N25UH |
970-1050
|
9.7-10.5
|
708-812 |
8.9-10.2
|
¡Ý1910
|
¡Ý24.0 |
183-207
|
23-26
|
180 |
|
N28UH |
1020-1100 |
10.2-11.0
|
708-812
|
8.9-10.2
|
¡Ý1910
|
¡Ý24.0 |
207-231
|
26-29
|
180 |
|
N30T |
1080-1130
|
10.8-11.3
|
812-860
|
10.2-10.8
|
¡Ý1200
|
¡Ý15.0
|
223-240
|
28-30
|
150 |
¡¡
|
