Sintered NdFeB
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Neodymium Iron Boron Magnet Materials
Sintered NdFeB Magnets
Sintered NdFeB magnet is the most permanent magnet in the contemporary. Due to it have good remanence, coercivity and high performance, sintered NdFeB magnet have best magnetic, can support about 640 times of its weight. Now it have been widely used in electronics, electrical, mechanical, medical equipment and others. High Energy Density for NdFeB magnet, that can use in modern industry and electronic technology, so that the instrumentation, auto, electric, magnetic separation equipment can change to smaller, lighter, thinner
Involving the sintering of power compacts under vacuum
- Grindingand slicing possible
- Very reactive with moisture and oxygen
- Coasting may be applied depending on the expected environment
Typical Magnetic Performance for Sintered NdFeB Magnet
| grade | Remanence Br |
Coercive force Hcb |
Intrinsic Coercive force Hcj |
Maximum Energy (BH)max |
Tw. | ||||
| KGs | T | KOe | KA/m | KOe | KA/m | MGOe | KJ/m3 | (℃) | |
| N30 | 10.8-11.2 | 1.08-1.12 | ≥10.00 | ≥796 | ≥12 | ≥ 955 | 28-31 | 223-246 | ≤80 |
| N33 | 11.3-11.7 | 1.13-1.17 | ≥10.50 | ≥836 | ≥12 | ≥ 955 | 31-33 | 247-263 | ≤80 |
| N35 | 11.7-12.1 | 1.17-1.21 | ≥10.80 | ≥860 | ≥12 | ≥ 955 | 33-35 | 263-279 | ≤80 |
| N38 | 12.2-12.6 | 1.22-1.26 | ≥11.30 | ≥900 | ≥12 | ≥ 955 | 36-38 | 287-303 | ≤80 |
| N40 | 12.5-12.8 | 1.25-1.28 | ≥11.40 | ≥908 | ≥12 | ≥ 955 | 38-40 | 303-318 | ≤80 |
| N42 | 12.8-13.2 | 1.28-1.32 | ≥11.50 | ≥915 | ≥12 | ≥ 955 | 40-42 | 326-342 | ≤80 |
| N45 | 13.2-13.7 | 1.32-1.37 | ≥11.60 | ≥924 | ≥12 | ≥ 955 | 43-45 | 342-358 | ≤80 |
| N48 | 13.7-14.2 | 1.37-1.42 | ≥11.60 | ≥923 | ≥12 | ≥ 955 | 46-48 | 367-383 | ≤80 |
| N50 | 14.1-14.5 | 1.41-1.45 | ≥10.00 | ≥796 | ≥11 | ≥ 875 | 48-50 | 383-398 | ≤80 |
| N52 | 14.3-14.8 | 1.43-1.48 | ≥10.00 | ≥796 | ≥11 | ≥ 875 | 50-53 | 398-422 | ≤80 |
| N30M | 10.8-11.2 | 1.08-1.12 | ≥10.00 | ≥796 | ≥14 | ≥1114 | 28-31 | 223-246 | ≤100 |
| N33M | 11.3-11.7 | 1.13-1.17 | ≥10.50 | ≥836 | ≥14 | ≥1114 | 31-33 | 247-263 | ≤100 |
| N35M | 11.7-12.0 | 1.17-1.20 | ≥10.90 | ≥868 | ≥14 | ≥1114 | 33-35 | 263-279 | ≤100 |
| N38M | 12.2-12.6 | 1.22-1.26 | ≥11.30 | ≥900 | ≥14 | ≥1114 | 36-38 | 287-303 | ≤100 |
| N40M | 12.6-12.9 | 1.26-1.29 | ≥11.60 | ≥924 | ≥14 | ≥1114 | 38-40 | 303-318 | ≤100 |
| N42M | 12.9-13.2 | 1.29-1.32 | ≥12.00 | ≥955 | ≥14 | ≥1114 | 40-42 | 326-342 | ≤100 |
| N45M | 13.3-13.5 | 1.33-1.35 | ≥12.20 | ≥971 | ≥14 | ≥1114 | 43-45 | 342-358 | ≤100 |
| N48M | 13.8-14.0 | 1.38-1.40 | ≥12.90 | ≥1027 | ≥14 | ≥1114 | 46-48 | 367-383 | ≤100 |
| N30H | 10.8-11.2 | 1.08-1.12 | ≥10.00 | ≥794 | ≥17 | ≥1353 | 28-30 | 223-239 | ≤120 |
| N33H | 11.4-11.7 | 1.14-1.17 | ≥10.50 | ≥836 | ≥17 | ≥1353 | 31-33 | 247-263 | ≤120 |
| N35H | 11.7-12.0 | 1.17-1.20 | ≥10.90 | ≥868 | ≥17 | ≥1353 | 33-35 | 263-279 | ≤120 |
| N38H | 12.2-12.6 | 1.22-1.26 | ≥11.30 | ≥900 | ≥17 | ≥1353 | 36-38 | 287-303 | ≤120 |
| N40H | 12.6-12.8 | 1.26-1.28 | ≥11.60 | ≥824 | ≥17 | ≥1353 | 38-40 | 303-318 | ≤120 |
| N42H | 12.8-13.0 | 1.28-1.30 | ≥12.00 | ≥955 | ≥17 | ≥1353 | 40-42 | 326-342 | ≤120 |
| N45H | 13.3-13.5 | 1.33-1.35 | ≥12.20 | ≥971 | ≥17 | ≥1353 | 43-45 | 342-358 | ≤120 |
| N30SH | 10.8-11.2 | 1.08-1.12 | ≥10.10 | ≥804 | ≥20 | ≥1595 | 28-30 | 223-239 | ≤150 |
| N33SH | 11.4-11.7 | 1.14-1.17 | ≥10.60 | ≥844 | ≥20 | ≥1595 | 31-33 | 247-263 | ≤150 |
| N35SH | 11.7-12.0 | 1.17-1.20 | ≥11.00 | ≥876 | ≥20 | ≥1595 | 33-35 | 263-279 | ≤150 |
| N38SH | 12.2-12.5 | 1.22-1.25 | ≥11.40 | ≥908 | ≥20 | ≥1595 | 36-38 | 287-303 | ≤150 |
| N40SH | 12.5-12.7 | 1.25-1.27 | ≥11.80 | ≥939 | ≥20 | ≥1595 | 38-40 | 303-318 | ≤150 |
| N42SH | 12.8-13.0 | 1.28-1.30 | ≥12.00 | ≥955 | ≥20 | ≥1595 | 40-42 | 326-342 | ≤150 |
| N45SH | 13.3-13.5 | 1.33-1.35 | ≥12.20 | ≥971 | ≥20 | ≥1595 | 43-45 | 342-358 | ≤150 |
| N28UH | 10.4-10.8 | 1.04-1.08 | ≥ 9.80 | ≥780 | ≥25 | ≥1990 | 26-28 | 207-223 | ≤180 |
| N30UH | 10.8-11.2 | 1.08-1.12 | ≥10.10 | ≥804 | ≥25 | ≥1990 | 28-30 | 223-239 | ≤180 |
| N33UH | 11.3-11.5 | 1.13-1.15 | ≥10.60 | ≥844 | ≥25 | ≥1990 | 31-33 | 247-263 | ≤180 |
| N35UH | 11.7-11.9 | 1.17-1.19 | ≥11.00 | ≥876 | ≥25 | ≥1990 | 33-35 | 263-279 | ≤180 |
| N38UH | 12.2-12.5 | 1.22-1.25 | ≥11.40 | ≥908 | ≥25 | ≥1990 | 36-38 | 287-303 | ≤180 |
| N40UH | 12.5-12.7 | 1.25-1.27 | ≥11.80 | ≥939 | ≥25 | ≥1990 | 38-40 | 303-318 | ≤180 |
| N42UH | 12.8-13.0 | 1.28-1.30 | ≥12.00 | ≥955 | ≥25 | ≥1990 | 40-42 | 326-342 | ≤180 |
| N28EH | 10.4-10.8 | 1.04-1.08 | ≥ 9.80 | ≥780 | ≥30 | ≥2388 | 26-28 | 207-223 | ≤200 |
| N30EH | 10.8-11.2 | 1.08-1.12 | ≥10.10 | ≥804 | ≥30 | ≥2388 | 28-30 | 223-239 | ≤200 |
| N33EH | 11.3-11.5 | 1.13-1.15 | ≥10.60 | ≥844 | ≥30 | ≥2388 | 31-33 | 247-263 | ≤200 |
| N35EH | 11.7-11.9 | 1.17-1.19 | ≥11.00 | ≥876 | ≥30 | ≥2388 | 33-35 | 263-279 | ≤200 |
| N28AH | 10.4-10.8 | 1.04-1.08 | ≥ 9.80 | ≥780 | ≥35 | ≥2785 | 26-29 | 207-231 | ≤220 |
| N30AH | 10.8-11.2 | 1.08-1.12 | ≥10.10 | ≥804 | ≥35 | ≥2785 | 28-31 | 223-246 | ≤220 |
| N33AH | 11.3-11.7 | 1.13-1.17 | ≥10.30 | ≥820 | ≥35 | ≥2785 | 31-33 | 247-263 | ≤220 |
| N35AH | 11.7-12.1 | 1.17-1.21 | ≥10.80 | ≥860 | ≥35 | ≥2785 | 31-35 | 247-279 | ≤220 |
Note: Curie temperature and temperature coefficient are for reference only, but not as inspection base.
