Le NdFeb a les meilleures performances parmi les aimants permanents aux terres rares. C'est l'aimant permanent aux terres rares avec la propriété magnétique la plus forte actuellement. Il a une BH max extrêmement élevée et une bonne Hcj, et une grande usinabilité. C'est le matériau d'aimant permanent le plus largement utilisé dans le domaine industriel et connu sous le nom de "Roi de l'aimant".
Propriétés magnétiques et physiques de l'aimant NdFeB fritté | |||||||||||||
Grade | |||||||||||||
Rétention d'induction (Br) | Force coercitive (Hcb) | Force coercitive intrinsèque (Hcj) | Produit énergétique maximal (BH)max | Coefficient de température Tk | Température de travail maximale | Température de Curie | |||||||
T | kGs | kA/m | kOe | kA/m | kOe | kJ/m³ | MGOe | %/ºC(Br) | %/ºC(Hcj) | ºC | ºC | ||
N35 | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥955 | ≥12 | 263-287 | 33-36 | -0.12 | -0.70 | 80 | 310 | |
N38 | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥955 | ≥12 | 287-310 | 36-39 | -0.12 | -0.70 | 80 | 310 | |
N40 | 1.25-1.28 | 12.5-12.8 | ≥907 | ≥11.4 | ≥955 | ≥12 | 302-326 | 38-41 | -0.12 | -0.70 | 80 | 310 | |
N42 | 1.28-1.32 | 12.8-13.2 | ≥915 | ≥11.5 | ≥955 | ≥12 | 318-342 | 40-43 | -0.12 | -0.70 | 80 | 310 | |
N45 | 1.32-1.38 | 13.2-13.8 | ≥923 | ≥11.6 | ≥955 | ≥12 | 342-366 | 43-46 | -0.12 | -0.70 | 80 | 310 | |
N48 | 1.38-1.42 | 13.8-14.2 | ≥923 | ≥11.6 | ≥955 | ≥12 | 366-390 | 46-49 | -0.12 | -0.70 | 80 | 310 | |
N50 | 1.40-1.45 | 14.0-14.5 | ≥796 | ≥10.0 | ≥876 | ≥11 | 382-406 | 48-51 | -0.12 | -0.70 | 80 | 310 | |
N52 | 1.43-1.48 | 14.3-14.8 | ≥796 | ≥10.0 | ≥876 | ≥11 | 398-422 | 50-53 | -0.12 | -0.70 | 80 | 310 | |
35M | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥1114 | ≥14 | 263-287 | 33-36 | -0.12 | -0.70 | 100 | 310 | |
38M | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥1114 | ≥14 | 287-310 | 36-39 | -0.12 | -0.70 | 100 | 310 | |
40M | 1.25-1.28 | 12.5-12.8 | ≥923 | ≥11.6 | ≥1114 | ≥14 | 302-326 | 38-41 | -0.12 | -0.70 | 100 | 310 | |
42M | 1.28-1.32 | 12.8-13.2 | ≥955 | ≥12.0 | ≥1114 | ≥14 | 318-342 | 40-43 | -0.12 | -0.70 | 100 | 310 | |
45M | 1.32-1.38 | 13.2-13.8 | ≥995 | ≥12.5 | ≥1114 | ≥14 | 342-366 | 43-46 | -0.12 | -0.70 | 100 | 310 | |
48M | 1.37-1.43 | 13.7-14.3 | ≥1027 | ≥12.9 | ≥1114 | ≥14 | 366-390 | 46-49 | -0.12 | -0.70 | 100 | 310 | |
50M | 1.40-1.45 | 14.0-14.5 | ≥1033 | ≥13 | ≥1114 | ≥14 | 382-406 | 48-51 | -0.12 | -0.70 | 100 | 310 | |
35H | 1.17-1.22 | 11.7-12.2 | ≥868 | ≥10.9 | ≥1353 | ≥17 | 263-287 | 33-36 | -0.12 | -0.70 | 120 | 310 | |
38H | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥1353 | ≥17 | 287-310 | 36-39 | -0.12 | -0.70 | 120 | 310 | |
40H | 1.25-1.28 | 12.5-12.8 | ≥923 | ≥11.6 | ≥1353 | ≥17 | 302-326 | 38-41 | -0.12 | -0.70 | 120 | 310 | |
42H | 1.28-1.32 | 12.8-13.2 | ≥955 | ≥12.0 | ≥1353 | ≥17 | 318-342 | 40-43 | -0.12 | -0.70 | 120 | 310 | |
45H | 1.32-1.36 | 13.2-13.6 | ≥963 | ≥12.1 | ≥1353 | ≥17 | 342-366 | 43-46 | -0.12 | -0.70 | 120 | 310 | |
48H | 1.37-1.43 | 13.7-14.3 | ≥995 | ≥12.5 | ≥1353 | ≥17 | 366-390 | 46-49 | -0.12 | -0.70 | 120 | 310 | |
35SH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥1592 | ≥20 | 263-287 | 33-36 | -0.11 | -0.65 | 150 | 320 | |
38SH | 1.22-1.25 | 12.2-12.5 | ≥907 | ≥11.4 | ≥1592 | ≥20 | 287-310 | 36-39 | -0.11 | -0.65 | 150 | 320 | |
40SH | 1.25-1.28 | 12.5-12.8 | ≥939 | ≥11.8 | ≥1592 | ≥20 | 302-326 | 38-41 | -0.11 | -0.65 | 150 | 320 | |
42SH | 1.28-1.32 | 12.8-13.2 | ≥987 | ≥12.4 | ≥1592 | ≥20 | 318-342 | 40-43 | -0.11 | -0.65 | 150 | 320 | |
45SH | 1.32-1.38 | 13.2-13.8 | ≥1003 | ≥12.6 | ≥1592 | ≥20 | 342-366 | 43-46 | -0.11 | -0.65 | 150 | 320 | |
28UH | 1.04-1.08 | 10.4-10.8 | ≥764 | ≥9.6 | ≥1990 | ≥25 | 207-231 | 26-29 | -0.11 | -0.60 | 180 | 330 | |
30UH | 1.08-1.13 | 10.8-11.3 | ≥812 | ≥10.2 | ≥1990 | ≥25 | 223-247 | 28-31 | -0.11 | -0.60 | 180 | 330 | |
33UH | 1.13-1.17 | 11.3-11.7 | ≥852 | ≥10.7 | ≥1990 | ≥25 | 247-271 | 31-34 | -0.11 | -0.60 | 180 | 330 | |
35UH | 1.17-1.22 | 11.7-12.2 | ≥860 | ≥10.8 | ≥1990 | ≥25 | 263-287 | 33-36 | -0.11 | -0.60 | 180 | 330 | |
38UH | 1.22-1.25 | 12.2-12.5 | ≥876 | ≥11.0 | ≥1990 | ≥25 | 287-310 | 36-39 | -0.11 | -0.60 | 180 | 330 | |
40UH | 1.25-1.28 | 12.5-12.8 | ≥899 | ≥11.3 | ≥1990 | ≥25 | 302-326 | 38-41 | -0.11 | -0.60 | 180 | 330 | |
42UH | 1.28-1.32 | 12.8-13.2 | ≥899 | ≥11.3 | ≥1990 | ≥25 | 318-342 | 40-43 | -0.11 | -0.60 | 180 | 330 | |
28EH | 1.04-1.08 | 10.4-10.8 | ≥780 | ≥9.8 | ≥2388 | ≥30 | 207-231 | 26-29 | -0.11 | -0.55 | 200 | 330 | |
30EH | 1.08-1.13 | 10.8-11.3 | ≥812 | ≥10.2 | ≥2388 | ≥30 | 223-247 | 28-31 | -0.11 | -0.55 | 200 | 330 | |
33EH | 1.13-1.17 | 11.3-11.7 | ≥836 | ≥10.5 | ≥2388 | ≥30 | 247-271 | 31-34 | -0.11 | -0.55 | 200 | 330 | |
35EH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥2388 | ≥30 | 263-287 | 33-36 | -0.11 | -0.55 | 200 | 330 | |
38EH | 1.22-1.25 | 12.2-12.5 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 287-310 | 36-39 | -0.11 | -0.55 | 200 | 330 | |
40EH | 1.25-1.28 | 12.5-12.8 | ≥899 | ≥11.3 | ≥2388 | ≥30 | 302-326 | 38-41 | -0.11 | -0.55 | 200 | 330 | |
28AH | 1.04-1.08 | 10.4-10.8 | ≥787 | ≥9.9 | ≥2624 | ≥33 | 207-231 | 26-29 | -0.10 | -0.50 | 230 | 350 | |
30AH | 1.08-1.13 | 10.8-11.3 | ≥819 | ≥10.3 | ≥2624 | ≥33 | 223-247 | 28-31 | -0.10 | -0.50 | 230 | 350 | |
33AH | 1.13-1.17 | 11.3-11.7 | ≥843 | ≥10.6 | ≥2624 | ≥33 | 247-271 | 31-34 | -0.10 | -0.50 | 230 | 350 | |
35AH | 1.17-1.22 | 11.7-12.2 | ≥876 | ≥11.0 | ≥2624 | ≥33 | 263-287 | 33-36 | -0.10 | -0.50 | 230 | 350 |