Sintered NdFeB magnets originated in 1983 and are currently among the highest-performance magnetic materials available. Due to their susceptibility to oxidation, surface anti-corrosion coatings are typically applied, such as zinc, nickel-copper-nickel, chromium, or epoxy. With excellent machinability, they can be manufactured into various shapes and sizes according to customer requirements.
| Grade | Residual Induction | Coercive Force | Intrinsic Coercive Force | Maximum Energy Product | Working Temp | ||||
| Br | Hcb | Hcj | （ BH ） max | Tw | |||||
| mT | KGs | kA/m | (kOe) | kA/m | (kOe) | kJ/m3 | (MGOe) | ||
| N30 | 1080-1130 | (10.8-11.3) | ≥ 796 | ( ≥ 10.0) | ≥ 955 | ( ≥ 12) | 223-247 | (28-31) | ≤80 ℃ |
| N33 | 1130-1180 | (11.3-11.8) | ≥ 836 | ( ≥ 10.5) | ≥ 955 | ( ≥ 12) | 247-271 | (31-34) | ≤80 ℃ |
| N35 | 1180-1220 | (11.8-12.2) | ≥ 868 | ( ≥ 10.9) | ≥ 955 | ( ≥ 12) | 263-287 | (33-36) | ≤80 ℃ |
| N38 | 1230-1260 | (12.3-12.6) | ≥ 876 | ( ≥ 11.0) | ≥ 955 | ( ≥ 12) | 287-310 | (36-39) | ≤80 ℃ |
| N40 | 1260-1290 | (12.6-12.9) | ≥ 876 | ( ≥ 11.0) | ≥ 955 | ( ≥ 12) | 302-326 | (38-41) | ≤80 ℃ |
| N42 | 1290-1320 | (12.9-13.2) | ≥ 876 | ( ≥ 11.0) | ≥ 955 | ( ≥ 12) | 318-342 | (40-43) | ≤80 ℃ |
| N45 | 1320-1370 | (13.2-13.7) | ≥ 876 | ( ≥ 11.0) | ≥ 955 | ( ≥ 12) | 342-366 | (43-46) | ≤80 ℃ |
| N48 | 1370-1430 | (13.7-14.3) | ≥ 876 | ( ≥ 11.0) | ≥ 955 | ( ≥ 12) | 358-390 | (45-49) | ≤80 ℃ |
| N50 | 1400-1450 | (14.0-14.5) | ≥ 876 | ( ≥ 11.0) | ≥ 955 | ( ≥ 12) | 374-406 | (47-51) | ≤80 ℃ |
| N52 | 1420-1480 | (14.2-14.8) | ≥ 836 | ( ≥ 10.5) | ≥ 876 | ( ≥ 11) | 390-422 | (49-53) | ≤80 ℃ |
| N54 | 1450-1500 | (14.5-15.0) | ≥ 836 | ( ≥ 10.5) | ≥ 876 | ( ≥ 11) | 406-438 | (51-55) | ≤80 ℃ |
| N56 | 1470-1500 | (14.7-15.0) | ≥ 836 | ( ≥ 10.5) | ≥ 876 | ( ≥ 11) | 422-454 | (53-57) | ≤80 ℃ |
| N35M | 1180-1230 | (11.8-12.3) | ≥ 860 | ( ≥ 10.8) | ≥ 1114 | ( ≥ 14) | 263-287 | (33-36) | ≤100 ℃ |
| N38M | 1230-1260 | (12.3-12.6) | ≥ 876 | ( ≥ 11.0) | ≥ 1114 | ( ≥ 14) | 287-310 | (36-39) | ≤100 ℃ |
| N40M | 1260-1290 | (12.6-12.9) | ≥ 907 | ( ≥ 11.4) | ≥ 1114 | ( ≥ 14) | 302-326 | (38-41) | ≤100 ℃ |
| N42M | 1290-1320 | (12.9-13.2) | ≥ 939 | ( ≥ 11.8) | ≥ 1114 | ( ≥ 14) | 318-342 | (40-43) | ≤100 ℃ |
| N45M | 1320-1370 | (13.2-13.7) | ≥ 971 | ( ≥ 12.2) | ≥ 1114 | ( ≥ 14) | 342-366 | (43-46) | ≤100 ℃ |
| N48M | 1370-1430 | (13.7-14.3) | ≥ 1011 | ( ≥ 12.7) | ≥ 1114 | ( ≥ 14) | 358-390 | (45-49) | ≤100 ℃ |
| N50M | 1400-1450 | (14.0-14.5) | ≥ 1035 | ( ≥ 13.0) | ≥ 1114 | ( ≥ 14) | 374-406 | (47-51) | ≤100 ℃ |
| N52M | 1420-1480 | (14.2-14.8) | ≥ 1051 | ( ≥ 13.2) | ≥ 1114 | ( ≥ 14) | 390-422 | (49-53) | ≤100 ℃ |
| N54M | 1440-1500 | (14.4-15.0) | ≥ 1059 | ( ≥ 13.3) | ≥ 1114 | ( ≥ 14) | 398-438 | (50-55) | ≤100 ℃ |
| N33H | 1130-1180 | (11.3-11.8) | ≥ 844 | ( ≥ 10.6) | ≥ 1353 | ( ≥ 17) | 247-271 | (31-34) | ≤120 ℃ |
| N35H | 1180-1230 | (11.8-12.3) | ≥ 876 | ( ≥ 11.0) | ≥ 1353 | ( ≥ 17) | 263-287 | (33-36) | ≤120 ℃ |
| N38H | 1230-1260 | (12.3-12.6) | ≥ 907 | ( ≥ 11.4) | ≥ 1353 | ( ≥ 17) | 287-310 | (36-39) | ≤120 ℃ |
| N40H | 1260-1290 | (12.6-12.9) | ≥ 931 | ( ≥ 11.7) | ≥ 1353 | ( ≥ 17) | 302-326 | (38-41) | ≤120 ℃ |
| N42H | 1290-1320 | (12.9-13.2) | ≥ 955 | ( ≥ 12.0) | ≥ 1353 | ( ≥ 17) | 318-342 | (40-43) | ≤120 ℃ |
| N45H | 1320-1370 | (13.2-13.7) | ≥ 995 | ( ≥ 12.5) | ≥ 1353 | ( ≥ 17) | 342-366 | (43-46) | ≤120 ℃ |
| N48H | 1370-1430 | (13.7-14.3) | ≥ 1019 | ( ≥ 12.8) | ≥ 1353 | ( ≥ 17) | 358-390 | (45-49) | ≤120 ℃ |
| N50H | 1400-1450 | (14.0-14.5) | ≥ 1035 | ( ≥ 13.0) | ≥ 1274 | ( ≥ 16) | 374-406 | (47-51) | ≤120 ℃ |
| N52H | 1420-1480 | (14.2-14.8) | ≥ 1043 | ( ≥ 13.1) | ≥ 1274 | ( ≥ 16) | 390-422 | (49-53) | ≤120 ℃ |
| N54H | 1440-1490 | (14.4-14.9) | ≥ 1051 | ( ≥ 13.2) | ≥ 1274 | ( ≥ 16) | 398-438 | (50-55) | ≤120 ℃ |
| Grade | Residual Induction | Coercive Force | Intrinsic Coercive Force | Maximum Energy Product | Working Temp | ||||
| Br | Hcb | Hcj | （ BH ） max | Tw | |||||
| mT | KGs | kA/m | (kOe) | kA/m | (kOe) | kJ/m3 | (MGOe) | ||
| N33SH | 1130-1180 | (11.3-11.8) | ≥ 836 | ( ≥ 10.5) | ≥ 1592 | ( ≥ 20) | 247-271 | (31-34) | ≤150 ℃ |
| N35SH | 1180-1230 | (11.8-12.3) | ≥ 876 | ( ≥ 11.0) | ≥ 1592 | ( ≥ 20) | 263-287 | (33-36) | ≤150 ℃ |
| N38SH | 1230-1260 | (12.3-12.6) | ≥ 884 | ( ≥ 11.1) | ≥ 1592 | ( ≥ 20) | 287-310 | (36-39) | ≤150 ℃ |
| N40SH | 1260-1290 | (12.6-12.9) | ≥ 915 | ( ≥ 11.5) | ≥ 1592 | ( ≥ 20) | 302-326 | (38-41) | ≤150 ℃ |
| N42SH | 1290-1320 | (12.9-13.2) | ≥ 955 | ( ≥ 12.0) | ≥ 1592 | ( ≥ 20) | 318-342 | (40-43) | ≤150 ℃ |
| N45SH | 1320-1370 | (13.2-13.7) | ≥ 995 | ( ≥ 12.5) | ≥ 1592 | ( ≥ 20) | 342-366 | (43-46) | ≤150 ℃ |
| N48SH | 1370-1430 | (13.7-14.3) | ≥ 1019 | ( ≥ 12.8) | ≥ 1512 | ( ≥ 19) | 358-390 | (45-49) | ≤150 ℃ |
| N50SH | 1400-1450 | (14.0-14.5) | ≥ 1035 | ( ≥ 13.0) | ≥ 1512 | ( ≥ 19) | 374-406 | (47-51) | ≤150 ℃ |
| N52SH | 1420-1480 | (14.2-14.8) | ≥ 1043 | ( ≥ 13.1) | ≥ 1512 | ( ≥ 19) | 390-422 | (49-53) | ≤150 ℃ |
| N54SH | 1440-1500 | (14.4-15.0) | ≥ 1059 | ( ≥ 13.3) | ≥ 1512 | ( ≥ 19) | 398-438 | (50-55) | ≤150 ℃ |
| N30UH | 1080-1130 | (10.8-11.3) | ≥ 756 | ( ≥ 9.5) | ≥ 1990 | ( ≥ 25) | 223-247 | (28-31) | ≤180 ℃ |
| N33UH | 1130-1180 | (11.3-11.8) | ≥ 820 | ( ≥ 10.3) | ≥ 1990 | ( ≥ 25) | 247-271 | (31-34) | ≤180 ℃ |
| N35UH | 1180-1230 | (11.8-12.3) | ≥ 844 | ( ≥ 10.6) | ≥ 1990 | ( ≥ 25) | 263-287 | (33-36) | ≤180 ℃ |
| N38UH | 1230-1260 | (12.3-12.6) | ≥ 884 | ( ≥ 11.1) | ≥ 1990 | ( ≥ 25) | 287-310 | (36-39) | ≤180 ℃ |
| N40UH | 1260-1290 | (12.6-12.9) | ≥ 915 | ( ≥ 11.5) | ≥ 1990 | ( ≥ 25) | 302-326 | (38-41) | ≤180 ℃ |
| N42UH | 1290-1320 | (12.9-13.2) | ≥ 939 | ( ≥ 11.8) | ≥ 1990 | ( ≥ 25) | 318-342 | (40-43) | ≤180 ℃ |
| N45UH | 1320-1360 | (13.2-13.6) | ≥ 971 | ( ≥ 12.2) | ≥ 1990 | ( ≥ 25) | 342-366 | (43-46) | ≤180 ℃ |
| N48UH | 1360-1430 | (13.6-14.3) | ≥ 1019 | ( ≥ 12.8) | ≥ 1990 | ( ≥ 25) | 358-390 | (45-49) | ≤180 ℃ |
| N50UH | 1400-1450 | (14.0-14.5) | ≥ 1035 | ( ≥ 13.0) | ≥ 1990 | ( ≥ 25) | 374-406 | (47-51) | ≤180 ℃ |
| N52UH | 1420-1480 | (14.2-14.8) | ≥ 1043 | ( ≥ 13.1) | ≥ 1990 | ( ≥ 25) | 390-422 | (49-53) | ≤180 ℃ |
| N54UH | 1440-1500 | (14.4-15.0) | ≥ 1059 | ( ≥ 13.3) | ≥ 1990 | ( ≥ 25) | 398-438 | (50-55) | ≤180 ℃ |
| N28EH | 1040-1080 | (10.4-10.8) | ≥ 756 | ( ≥ 9.5) | ≥ 2388 | ( ≥ 30) | 207-231 | (26-29) | ≤200 ℃ |
| N30EH | 1080-1130 | (10.8-11.3) | ≥ 756 | ( ≥ 9.5) | ≥ 2388 | ( ≥ 30) | 223-247 | (28-31) | ≤200 ℃ |
| N33EH | 1130-1180 | (11.3-11.8) | ≥ 820 | ( ≥ 10.3) | ≥ 2388 | ( ≥ 30) | 247-271 | (31-34) | ≤200 ℃ |
| N35EH | 1180-1220 | (11.8-12.2) | ≥ 884 | ( ≥ 11.1) | ≥ 2388 | ( ≥ 30) | 263-287 | (33-36) | ≤200 ℃ |
| N38EH | 1220-1260 | (12.2-12.6) | ≥ 923 | ( ≥ 11.6) | ≥ 2388 | ( ≥ 30) | 279-310 | (35-39) | ≤200 ℃ |
| N40EH | 1260-1290 | (12.6-12.9) | ≥ 947 | ( ≥ 11.9) | ≥ 2388 | ( ≥ 30) | 295-326 | (37-41) | ≤200 ℃ |
| N42EH | 1290-1320 | (12.9-13.2) | ≥ 971 | ( ≥ 12.2) | ≥ 2308 | ( ≥ 29) | 310-342 | (39-43) | ≤200 ℃ |
| N45EH | 1320-1360 | (13.2-13.6) | ≥ 979 | ( ≥ 12.3) | ≥ 2308 | ( ≥ 29) | 342-366 | (43-46) | ≤200 ℃ |
| N48EH | 1360-1430 | (13.6-14.3) | ≥ 987 | ( ≥ 12.4) | ≥ 2308 | ( ≥ 29) | 358-390 | (45-49) | ≤200 ℃ |
| N28AH | 1040-1080 | (10.4-10.8) | ≥ 756 | ( ≥ 9.5) | ≥ 2786 | ( ≥ 35) | 207-231 | (26-29) | ≤230 ℃ |
| N30AH | 1080-1130 | (10.8-11.3) | ≥ 804 | ( ≥ 10.1) | ≥ 2786 | ( ≥ 35) | 223-247 | (28-31) | ≤230 ℃ |
| N33AH | 1130-1180 | (11.3-11.8) | ≥ 812 | ( ≥ 10.2) | ≥ 2786 | ( ≥ 35) | 247-271 | (31-34) | ≤230 ℃ |
| N35AH | 1180-1220 | (11.8-12.2) | ≥ 844 | ( ≥ 10.6) | ≥ 2786 | ( ≥ 35) | 263-287 | (33-36) | ≤230 ℃ |
| N38AH | 1220-1260 | (12.2-12.6) | ≥ 860 | ( ≥ 10.8) | ≥ 2786 | ( ≥ 35) | 287-310 | (36-39) | ≤230 ℃ |
| N40AH | 1260-1290 | (12.6-12.9) | ≥ 876 | ( ≥ 11.0) | ≥ 2786 | ( ≥ 35) | 295-326 | (37-41) | ≤230 ℃ |
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Sintered NdFeB magnets are widely used in new energy vehicles, wind power generators, industrial motors, consumer electronics, hard disk drives, audio equipment, automation equipment, medical devices, and smart home appliances, offering high magnetic performance for efficient and compact designs.
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