Le NdFeb a les meilleures performances parmi les aimants permanents en terres rares. C'est l'aimant permanent en terres rares avec la propriété magnétique la plus forte actuellement. Il a un BH max extrêmement élevé et un bon Hcj, et une grande usinabilité. C'est le matériau magnétique permanent le plus largement utilisé dans le domaine industriel et connu sous le nom de "Roi des aimants".
Propriétés magnétiques et physiques de l'aimant NdFeB fritté | |||||||||||||
Grade | |||||||||||||
Induction Résiduelle (Br) | Force coercitive (Hcb) | Force coercitive intrinsèque (Hcj) | Produit d'énergie maximale (BH)max | Coef. 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 |