Sintered NdFeB
| NdFeB magnet is a new product, surpassing the SmCo magnet. The main raw materials are Neodymium, Iron and boron, Its magnetic characteristics at the mass production level reach 45 MGOe in maximum energy product (BH) max, achieving 50%higher performance with 10% reduction in specific gravity compared with SmCo (Samarium-Cobalt) magnets. It not |
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only achieves better cost-efficiency, but also has superior performance which was appraised as being the highest in the world. |
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| Grade | Br(KG) | Hcb(KOe) | Hcj(KOe) | (BH)max | Max.Opet.Temp | |
| N33 | 11.3 ~ 11.7 | >10.5 | >12.0 | 31 ~ 33 | <80 | |
| N35 | 11.7 ~ 12.1 | >10.9 | >12.0 | 33 ~ 36 | <80 | |
| N38 | 12.1 ~ 12.5 | >11.3 | >12.0 | 36 ~ 39 | <80 | |
| N40 | 12.5 ~ 12.8 | >11.6 | >12.0 | 38 ~ 41 | <80 | |
| N42 | 12.8 ~ 13.2 | >11.6 | >12.0 | 40 ~ 43 | <80 | |
| N45 | 13.2 ~ 13.8 | >11.0 | >12.0 | 43 ~ 46 | <80 | |
| N48 | 13.8 ~ 14.2 | >10.5 | >11.0 | 46 ~ 49 | <80 | |
| N30M | 10.8 ~ 11.2 | >9.8 | >14 | 28 ~ 30 | <100 | |
| N33M | 11.3 ~ 11.7 | >10.5 | >14 | 31 ~ 33 | <100 | |
| N35M | 11.8 ~ 12.2 | >11.0 | >14 | 33 ~ 36 | <100 | |
| N38M | 12.2 ~ 12.6 | >11.0 | >14 | 36 ~ 38 | <100 | |
| N40M | 12.6 ~ 12.9 | >11.0 | >14 | 38~40 | <100 | |
| N42M | 13.0 ~ 13.3 | >11.0 | >14 | 40 ~ 42 | <100 | |
| N45M | 13.3 ~ 13.7 | >11.0 | >14.0 | 43 ~ 45 | <100 | |
| N30H | 10.8 ~ 11.3 | >10.0 | >17 | 28 ~ 31 | <120 | |
| N33H | 11.3 ~ 11.7 | >10.5 | >17 | 31 ~ 34 | <120 | |
| N35H | 11.7 ~ 12.1 | >10.9 | >17 | 33 ~ 36 | <120 | |
| N38H | 12.1 ~ 12.5 | >11.3 | >17 | 36 ~ 39 | <120 | |
| N40H | 12.5 ~ 12.8 | >11.6 | >17 | 38 ~ 41 | <120 | |
| N42H | 12.8 ~ 13.2 | >12.0 | >17 | 40 ~ 43 | <120 | |
| N27SH | 10.2 ~ 10.8 | >9.6 | >20 | 25 ~ 27 | <150 | |
| N30SH | 10.8 ~ 11.3 | >10.1 | >20 | 28 ~ 31 | <150 | |
| N33SH | 11.3 ~ 11.7 | >10.6 | >20 | 31 ~ 34 | <150 | |
| N35SH | 11.7 ~ 12.1 | >11.0 | >20 | 33 ~ 36 | <150 | |
| N38SH | 12.1 ~ 12.5 | >11.4 | >20 | 36 ~ 39 | <150 | |
| N40SH | 12.5 ~ 12.8 | >11.8 | >20 | 38 ~ 41 | <150 | |
| N25UH | 9.6 ~ 10.2 | >9.3 | >25 | 23 ~ 25 | <180 | |
| N28UH | 10.2 ~ 10.8 | >9.6 | >25 | 26 ~ 29 | <180 | |
| N30UH | 10.8 ~ 11.3 | >10.2 | >25 | 28 ~ 31 | <180 | |
| N33UH | 11.3 ~ 11.7 | >10.7 | >25 | 31 ~ 34 | <180 | |
| N28EH | 10.4 ~ 10.9 | >9.8 | >30 | 26 ~ 29 | <200 | |
| N30EH | 10.8 ~ 11.3 | >10.2 | >30 | 28 ~ 31 | <200 |
Physical and Mechanical Charateristics
| Temperature coefficient of Hcj | %/°C | -0.50~0.65 | |
| Temperature coefficient of Br | %/°C | -0.11~0.13 | |
| Recoil Permeability | mrec | 1.05~1.10 | |
| Curie Point | °C | 310 | |
| Electric Resistivity | mW.cm | 144 | |
| Density | g/cm3 | 7.4~7.5 | |
| Vicker Hardness | Hv | 550~600 |
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