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China Rare Earth Magnet Limited supplies neodymium magnet (NdFeB) – sintered neodymium & bonded neodymium
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| Neodymium Magnet: Neodymium Magnet is Neodymium Iron Boron magnet. It is the third generation of rare earth magnet and has been commercially available since the mid -1980's. It is the most powerful rare earth magnet today possessing high energy product from 8MGOe to 52MGOe and Neodymium Iron Boron has good resistance to external demagnetization fields because of its high Intrinsic Coercive Force (Hci). This resistance makes Neodymium magnets an excellent choice for electromechanical applications. With abundant raw material, NdFeB cost less. Also the density of NdFeB products is about 13% smaller than SmCo products, because NdFeB magnets are more prone to oxidation than any other magnet alloy, so for most applications, coating or plating the magnets is recommended.
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Sintered NdFeB Magnet |
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| MAGNETIC CHARACTERISTICS AND PHYSICAL PROPERTIES OF SINTERED NdFeB |
Grade |
Br
mT
(kGs) |
Hcb
kA/m
(kOe) |
Hcj
kA/m
(kOe) |
（ BH ）max kJ/m3
(MGOe) |
(Tw) |
N27 |
1030-1080
(10.3-10.8) |
≥ 796
( ≥ 10.0) |
≥ 955
( ≥ 12) |
199-231
(25-29) |
80 ℃ |
N30 |
1080-1130
(10.8-11.3) |
≥ 796
( ≥ 10.0) |
≥ 955
( ≥ 12) |
223-247
(28-31) |
80 ℃ |
N33 |
1130-1170
(11.3-11.7) |
≥ 836
( ≥ 10.5) |
≥ 955
( ≥ 12) |
247-271
(31-34) |
80 ℃ |
N35 |
1170-1220
(11.7-12.2) |
≥ 868
( ≥ 10.9) |
≥ 955
( ≥ 12) |
263-287
(33-36) |
80 ℃ |
N38 |
1220-1250
(12.2-12.5) |
≥ 899
( ≥ 11.3) |
≥ 955
( ≥ 12) |
287-310
(36-39) |
80 ℃ |
N40 |
1250-1280
(12.5-12.8) |
≥ 907
( ≥ 11.4) |
≥ 955
( ≥ 12) |
302-326
(38-41) |
80 ℃ |
N42 |
1280-1320
(12.8-13.2) |
≥ 915
( ≥ 11.5) |
≥ 955
( ≥ 12) |
318-342
(40-43) |
80 ℃ |
N45 |
1320-1380
(13.2-13.8) |
≥ 923
( ≥ 11.6) |
≥ 955
( ≥ 12) |
342-366
(43-46) |
80 ℃ |
N48 |
1380-1420
(13.8-14.2) |
≥ 923
( ≥ 11.6) |
≥ 876
( ≥ 12) |
366-390
(46-49) |
80 ℃ |
N50 |
1400-1450
(14.0-14.5) |
≥ 796
( ≥ 10.0) |
≥ 876
( ≥ 11) |
382-406
(48-51) |
60 ℃ |
N52 |
1430-1480
(14.3-14.8) |
≥ 796
( ≥ 10.0) |
≥ 876
( ≥ 11) |
398-422
(50-53) |
60 ℃ |
30M |
1080-1130
(10.8-11.3) |
≥ 796
( ≥ 10.0) |
≥ 1114
( ≥ 14) |
223-247
(28-31) |
100 ℃ |
33M |
1130-1170
(11.3-11.7) |
≥ 836
( ≥ 10.5) |
≥ 1114
( ≥ 14) |
247-263
(31-33) |
100 ℃ |
35M |
1170-1220
(11.7-12.2) |
≥ 868
( ≥ 10.9) |
≥ 1114
( ≥ 14) |
263-287
(33-36) |
100 ℃ |
38M |
1220-1250
(12.2-12.5) |
≥ 899
( ≥ 11.3) |
≥ 1114
( ≥ 14) |
287-310
(36-39) |
100 ℃ |
40M |
1250-1280
(12.5-12.8) |
≥ 923
( ≥ 11.6) |
≥ 1114
( ≥ 14) |
302-326
(38-41) |
100 ℃ |
42M |
1280-1320
(12.8-13.2) |
≥ 955
( ≥ 12.0) |
≥ 1114
( ≥ 14) |
318-342
(40-43) |
100 ℃ |
45M |
1320-1380
(13.2-13.8) |
≥ 995
( ≥ 12.5) |
≥ 1114
( ≥ 14) |
342-366
(43-46) |
100 ℃ |
48M |
1360-1430
(13.6-14.3) |
≥ 1027
( ≥ 12.9) |
≥ 1114
( ≥ 14) |
366-390
(46-49) |
100 ℃ |
50M |
1400-1450
(14.0-14.5) |
≥ 1033
( ≥ 13.0) |
≥ 1114
( ≥ 14) |
382-406
(48-51) |
100 ℃ |
30H |
1080-1130
(10.8-11.3) |
≥ 796
( ≥ 10.0) |
≥ 1353
( ≥ 17) |
223-247
(28-31) |
120 ℃ |
33H |
1130-1170
(11.3-11.7) |
≥ 836
( ≥ 10.5) |
≥ 1353
( ≥ 17) |
247-271
(31-34) |
120 ℃ |
35H |
1170-1220
(11.7-12.2) |
≥ 868
( ≥ 10.9) |
≥ 1353
( ≥ 17) |
263-287
(33-36) |
120 ℃ |
38H |
1220-1250
(12.2-12.5) |
≥ 899
( ≥ 11.3) |
≥ 1353
( ≥ 17) |
287-310
(36-39) |
120 ℃ |
40H |
1250-1280
(12.5-12.8) |
≥ 923
( ≥ 11.6) |
≥ 1353
( ≥ 17) |
302-326
(38-41) |
120 ℃ |
42H |
1280-1320
(12.8-13.2) |
≥ 955
( ≥ 12.0) |
≥ 1353
( ≥ 17) |
318-342
(40-43) |
120 ℃ |
45H |
1300-1360
(13-13.6) |
≥ 963
( ≥ 12.1) |
≥ 1353
( ≥ 17) |
326-358
(43-46) |
120 ℃ |
48H |
1370-1430
(13.7-14.3) |
≥ 995
( ≥ 12.5) |
≥ 1353
( ≥ 17) |
366-390
(46-49) |
120 ℃ |
30SH |
1080-1130
(10.8-11.3) |
≥ 804
( ≥ 10.1) |
≥ 1592
( ≥ 20) |
223-247
(28-31) |
150 ℃ |
33SH |
1130-1170
(11.3-11.7) |
≥ 844
( ≥ 10.6) |
≥ 1592
( ≥ 20) |
247-271
(31-34) |
150 ℃ |
35SH |
1170-1220
(11.7-12.2) |
≥ 876
( ≥ 11.0) |
≥ 1592
( ≥ 20) |
263-287
(33-36) |
150 ℃ |
38SH |
1220-1250
(12.2-12.5) |
≥ 907
( ≥ 11.4) |
≥ 1592
( ≥ 20) |
287-310
(36-39) |
150 ℃ |
40SH |
1240-1280
(12.5-12.8) |
≥ 939
( ≥ 11.8) |
≥ 1592
( ≥ 20) |
302-326
(38-41) |
150 ℃ |
42SH |
1280-1320
(12.8-13.2) |
≥ 987
( ≥ 12.4) |
≥ 1592
( ≥ 20) |
318-342
(40-43) |
150 ℃ |
45SH |
1320-1380
(13.2-13.8) |
≥ 1003
( ≥ 12.6) |
≥ 1592
( ≥ 20) |
342-366
(43-46) |
150 ℃ |
28UH |
1020-1080 (10.2-10.8) |
≥ 764
( ≥ 9.6) |
≥ 1990
( ≥ 25) |
207-231
(26-29) |
180 ℃ |
30UH |
1080-1130 (10.8-11.3) |
≥ 812
( ≥ 10.2) |
≥ 1990
( ≥ 25) |
223-247
(28-31) |
180 ℃ |
33UH |
1130-1170
(11.3-11.7) |
≥ 852
( ≥ 10.7) |
≥ 1990
( ≥ 25) |
247-271
(31-34) |
180 ℃ |
35UH |
1180-1220
(11.8-12.2) |
≥ 860
( ≥ 10.8) |
≥ 1990
( ≥ 25) |
263-287
(33-36) |
180 ℃ |
38UH |
1220-1250
(12.2-12.5) |
≥ 876
( ≥ 11.0) |
≥ 1990
( ≥ 25) |
287-310
(36-39) |
180 ℃ |
40UH |
1240-1280
(12.5-12.8) |
≥ 899
( ≥ 11.3) |
≥ 1990
( ≥ 25) |
302-326
(38-41) |
180 ℃ |
28EH |
1040-1090
(10.4-10.9) |
≥ 780
( ≥ 9.8) |
≥ 2388
( ≥ 30) |
207-231
(26-29) |
200 ℃ |
30EH |
1080-1130 (10.8-11.3) |
≥ 812
( ≥ 10.2) |
≥ 2388
( ≥ 30) |
223-247
(28-31) |
200 ℃ |
33EH |
1130-1170
(11.3-11.7) |
≥ 836
( ≥ 10.5) |
≥ 2388
( ≥ 30) |
247-271
(31-34) |
200 ℃ |
35EH |
1170-1220
(11.7-12.2) |
≥ 876
( ≥ 11.0) |
≥ 2388
( ≥ 30) |
263-287
(33-36) |
200 ℃ |
38EH |
1220-1250
(12.2-12.5) |
≥ 899
( ≥ 11.3) |
≥ 2388
( ≥ 30) |
287-310
(36-39) |
200 ℃ |
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Magnetic characteristics and physical properterties of bonded compression moulding NdFeB magnet |
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Performance |
BNP-6 |
BNP-8L |
BNP-8 |
BNP-8SR |
BNP-8H |
BNP-9 |
BNP-10 |
BNP-11 |
BNP-11L |
BNP-12L |
B r T(Gs) |
0.55-0.62 |
0.60-0.64 |
0.62-0.69 |
0.62-0.66 |
0.61-0.65 |
0.65-0.70 |
0.68-0.72 |
0.70-0.74 |
0.70-0.74 |
0.74-0.80 |
H CB kA/m(kOe) |
285-370 (3.6-4.6) |
360-400 (4.5-5.0) |
385-445 (4.8-5.6) |
410-465 (5.2-5.8) |
410-455 (5.2-5.7) |
400-440 (5.0-5.5) |
420-470 (5.3-5.9) |
445-480 (5.6-6.0) |
400-440 (5.0-5.5) |
420-455 (5.3-5.7) |
H CJ kA/m(kOe) |
600-755 (7.5-9.5) |
715-800 (9-10) |
640-800 (8-10) |
880-1120 (11-14) |
1190-1440 (15-18) |
640-800 (8-10) |
640-800 (8-10) |
680-800 (8.5-10) |
520-640 (6.5-8) |
520-600 (6.5-7.5) |
(BH) max kJ/m 3 (MGOe) |
44-56 （ 5.5-7 ） |
56-64 （ 7.0-8.0 ） |
64-72 （ 8.0-9.0 ） |
64-72 （ 8.0-9.0 ） |
64-72 （ 8.0-9.0 ） |
70-76 （ 8.8-9.5 ） |
76-84 （ 9.5-10.5 ） |
80-88 （ 10.0-11.0 ） |
78-84 （ 9.8-10.5 ） |
84-92 （ 10.5-11.5 ） |
D g/cm 3 |
5.5-6.1 |
5.6-6.1 |
5.8-6.1 |
5.8-6.1 |
5.9-6.2 |
5.8-6.1 |
5.8-6.1 |
5.8-6.1 |
5.8-6.1 |
5.8-6.1 |
μ r |
1.15 |
1.15 |
1.15 |
1.13 |
1.15 |
1.22 |
1.22 |
1.22 |
1.26 |
1.26 |
α（ B r ） %/ ℃ |
-0.13 |
-0.13 |
-0.13 |
-0.13 |
-0.07 |
-0.12 |
-0.11 |
-0.11 |
-0.11 |
-0.08 |
T w ℃ |
100 |
110 |
120 |
150 |
125 |
120 |
120 |
120 |
110 |
110 |
1.The characteristics in this table are measured on CREM's standard test samples and not guaranteed values. |
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| Demagnetization curves of Sintered NdFeB N40 at different temperature |
Demagnetization curves of Sintered NdFeB N42 at different temperature |
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| Demagnetization curves of Sintered NdFeB N33SH at different temperature |
Demagnetization curves of Sintered NdFeB N38SH at different temperature |
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| Demagnetization curves of Sintered NdFeB N30UH at different temperature |
Demagnetization curves of Sintered NdFeB N30SH at different temperature |
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E-mail: magnetndfeb@china-ncc.com
Fax: (86)755 26915592
Tel: (86)755 26923096
Online
Order
Address: China Rare Earth Magnet Limited
Room No. 705-707, Tower A Century Holiday Plaza,No.9030 Shennan Rd., OCT, Nanshan District, Shenzhen , China .
Post Code: 518053
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Copyright © 2010 China Rare Earth Magnet Limited All Rights Reserved |
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We manufacture Ndfeb magnet, Neodymium Magnet & Neodymium Iron Boron magnets,
NdFeB magnet & Nd-Fe-B magnet, sintered NdFeB & Bonded NdFeB,china magnet, china magnets |
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