Neodymium permanent magnets are used in sensor, mini-motor, permanent magnet instrument, electronic industry, automobile industry, petrochemical industry, nuclear magnetic resonance devices, hi-fi equipment, suspension system, magnetic transmission machine and magnetic devices, etc., can also be used for motorcycles, magnetic circuit of motor vehicles in order to achieve the purpose of fuel-efficient. The third generation of NdFeB is the strongest magnets in the permanent magnet, it not only has high remanence, high coercivity, high energy product, high characteristics, and easily processed into various sizes, has been widely used in aviation, aerospace, electronics, electro-acoustic, mechanical and electrical products, instruments, meters, medical technology and other devices which required the permanent magnetic field, especially suitable for the development of high-performance, small size, light products
Grade | Br mT (kGs) | Hcb kA/m (kOe) | Hcj kA/m (kOe) | (BH)max kJ/m3 | Working Temperature (Tw) |
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 ℃ |
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