Zhu Zhou Summit New Material Co. Ltd
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Alnico Magnets Overview
Alnico magnetic material is an alloy of aluminum-nickel-cobalt which possesses an excellent temperature stability and high residual induction. However, its low coercive force limits its applications in many cases. Casting and sintering are two major processes used to manufacture the Alnico magnets.
Performance of Cast Alnico Magnets
|
CharacterIstics |
Max. Energy Product |
Br |
Hcb |
Hcj |
Density |
Temp.Coeffienct of Br. |
Curie point |
Remark |
|
|
(MGOe) |
(KGs) |
(KOe) |
(KOe) |
g/cm3 |
%/K |
°C |
Isotropic |
|
SAlNiCo4/1 |
0.40-0.60 |
8.7-8.9 |
0.11-0.14 |
0.13-0.15 |
6.8 |
-0.02 |
750 |
|
|
SAlNiCo8/5 |
1.07-1.19 |
5.3-6.2 |
0.57-0.63 |
0.59-0.65 |
6.8 |
-0.02 |
750 |
|
|
SAlNiCo10/5 |
1.19-1.38 |
6.3-7.0 |
0.63-0.73 |
0.63-0.73 |
6.8 |
-0.02 |
780 |
|
|
SAlNiCo12/5 |
1.38-1.63 |
7.0-7.5 |
0.62-0.70 |
0.66-0.73) |
7.0 |
-0.02 |
800 |
|
|
SAlNiCo14/5 |
1.63-1.88 |
7.3-8.0 |
0.59-0.63 |
0.63-0.67 |
7.1 |
-0.02 |
790 |
|
|
SAlNiCo14/6 |
1.76-2.00 |
6.2-8.1 |
0.70-0.81 |
0.73-0.83 |
7.1 |
-0.02 |
790 |
|
|
SAlNiCo14/8 |
1.76-2.00 |
5.5-6.1 |
0.94-1.11 |
1.00-1.16 |
7.1 |
-0.01 |
850 |
|
|
SAlNiCo18/10 |
2.00-2.39 |
5.7-6.2 |
1.16-1.26 |
1.24-1.34 |
7.2 |
-0.01 |
860 |
|
|
SAlNiCo29/6 |
3.64-4.15 |
9.7-12 |
0.73-0.80 |
0.75-0.83 |
7.2 |
-0.02 |
860 |
Anisotropic |
|
SAlNiCo30/6 |
3.77-4.27 |
10-11 |
0.73-0.80 |
0.75-0.83 |
7.2 |
-0.02 |
860 |
|
|
SAlNiCo42/10 |
5.27-5.77 |
9.5-11 |
1.26-1.38 |
1.30-1.43 |
7.2 |
-0.01 |
860 |
|
|
SAlNiCo33/11 |
4.14-4.77 |
7-8 |
1.34-1.45 |
1.39-1.50 |
7.2 |
-0.01 |
860 |
|
|
SANiCo35/5 |
4.40-4.90 |
11-12 |
0.60-0.65 |
0.63-0.68 |
7.2 |
-0.02 |
850 |
|
|
SAlNiCo37/15 |
4.65-5.15 |
7.0-8.0 |
1.76-1.85 |
1.88-1.98 |
7.2 |
-0.01 |
870 |
|
|
SAlNiCo39/12 |
4.90-5.40 |
8.3-9.0 |
1.45-1.54 |
1.50-1.60 |
7.25 |
-0.01 |
860 |
|
|
SAlNiCo44/12 |
5.53-6.03 |
9-9.5 |
1.50-1.60 |
1.56-1.66 |
7.25 |
-0.01 |
860 |
|
|
SAlNiCo40/15 |
5.02-6.03 |
7.5-8.5 |
1.80-1.90 |
1.95-2.05 |
7.2 |
-0.01 |
870 |
|
|
SAlNiCo44/15 |
5.53-6.03 |
8.0-8.8 |
1.86-2.00 |
1.95-2.05 |
7.2 |
-0.01 |
870 |
Performance of Cast Alnico Magnets
|
Characteristics |
Max. Energy Product |
Br |
Hcb |
Hcj |
Density |
Temp.Coeffienct of Br. |
Curie point |
Remarks |
|
|
(MGOe) |
(KGs) |
(KOe) |
(KOe) |
g/cm³ |
%/K |
°c |
Isotropic |
|
AlNiCo12/6 |
1.50 |
6.4 |
0.65 |
0.70 |
7.0 |
-0.03 |
810 |
|
|
AlNiCo13/6 |
1.63 |
7.5 |
0.65 |
0.70 |
7.0 |
-0.03 |
810 |
|
|
AlNiCo18/10 |
2.26 |
5.3 |
1.13 |
1.22 |
7.1 |
-0.01 |
860 |
|
|
AlNiCo20/11 |
2.51 |
6.0 |
1.26 |
1.36 |
7.3 |
-0.01 |
860 |
|
|
AlNiCo36/6 |
4.52 |
11.5 |
0.75 |
0.78 |
7.3 |
-0.02 |
850 |
Anisotropic |
|
AlNiCo38/5 |
4.77 |
12.0 |
0.63 |
0.65 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo40/5 |
5.03 |
12.5 |
0.62 |
0.63 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo44/5 |
5.53 |
12.7 |
0.65 |
0.67 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo52/6 |
6.53 |
13.0 |
0.71 |
0.72 |
7.3 |
-0.02 |
850 |
|
|
AlNiCo60/6 |
7.54 |
13.5 |
0.74 |
0.75 |
7.3 |
-0.02 |
860 |
|
|
AlNiCo38/11 |
4.77 |
8.5 |
1.38 |
1.41 |
7.3 |
-0.01 |
860 |
|
|
AlNiCo40/17 |
5.02 |
7.5 |
1.96 |
2.11 |
7.3 |
-0.01 |
870 |
|
|
AlNiCo46/12 |
5.78 |
9.3 |
1.51 |
1.56 |
7.3 |
-0.015 |
860 |
|
|
AlNiCo48/16 |
6.03 |
8.2 |
1.81 |
1.98 |
7.3 |
-0.01 |
870 |
|
|
AlNiCo72/12 |
9.04 |
10.5 |
1.43 |
1.46 |
7.3 |
-0.015 |
850 |
|
|
AlNiCo80/12 |
10.04 |
10.8 |
1.51 |
1.53 |
7.3 |
-0.015 |
850 |
Key Advantages
Sintered Alnico Magnets:
Cast Alnico Magnets:
Quick Leads
Common Applications
Holding magnets Separators Sensors Security systems MRI Relays Magnetos