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Alnico - Aluminum Nickel Cobalt

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First used in the 1930's, Alnico is the oldest family of permanent magnets. Its energy products range from 2.0 to 9.0 MGOe and it is produced in both cast and sintered forms. The most common grades are cast Alnico 5 & 8 with Alnico 5-7 and 9 being premium grades. Sintered Alnico materials are used for applications where the geometrics are smaller and more complex. 

Alnico magnets are easy to magnetize and have high resistance to corrosion. They are used where high temperatures exist and/or where very stable properties are required. 

Please refer to the below table for Alnico materials specs:

To view the demag curves click the grades in the chart.

Download Alnico Materials Chart - Click Here

Grade Remanence Flux Density Coercivity Max Energy Density Temperature Coefficient Operating Temperature MMPA
Br HcB HcJ (BH)max TK(Br) %K TK(HcJ) %K TwMax
kGs mT kA/m kOe kA/m kOe kJ/m³ MGOe ° C
Isotropic Cast ALNiCo
LN10 6.5 650 38 0.48 40 0.5 10 1.25 -0.035 -0.025 450 AlNiCo 3
LNG12 7.5 750 45 0.56 46 0.58 12 1.5 -0.03 -0.02 450 AlNiCo 2
LNGT18 5.5 550 90 1.13 97 1.21 18 2.25 -0.025 0.01 550 AlNiCo 8
Anisotropic Cast ALNiCo
LNG34 11 1100 50 0.63 52 0.65 34 4.25 -0.02 0.01 525 AlNiCo 5
LNG37 11.8 1180 49 0.61 51 0.64 37 4.63 -0.02 0.01 525
LNG40 12 1200 50 0.63 52 0.65 40 5 -0.02 0.01 525
LNG44 12.5 1250 52 0.65 54 0.68 44 5.5 -0.02 0.01 525
LNGT28 11.5 1150 58 0.73 60 0.75 28 3.5 -0.02 0.03 525 AlNiCo 6
LNG52 13 1300 56 0.7 58 0.73 52 6.5 -0.02 0.03 525 AlNiCo 5DG
LNG60 13.5 1350 58 0.73 60 0.75 60 7.5 -0.02 0.03 525 AlNiCo 5-7
LNGT38 8 800 110 1.38 112 1.4 38 4.75 -0.025 0.01 550 AlNiCo 8
LNGT40 8.5 850 115 1.44 117 1.46 40 5 -0.025 0.01 550
LNGT44 9 900 115 1.44 117 1.46 44 5.5 -0.025 0.01 550
LNGT36J 7.2 720 150 1.88 152 1.9 36 4.5 -0.025 0.01 550 AlNiCo 8HC
LNGT60 10 1000 110 1.38 112 1.4 60 7.5 -0.025 0.01 550 AlNiCo 9
LNGT72 10.5 1050 115 1.44 117 1.46 72 9 -0.025 0.01 550
LNGT80 10.8 1080 120 1.5 122 1.53 80 10 -0.025 0.01 550
Isotropic Sintered ALNiCo
FLNG10 6.5 650 40 0.5 42 0.53 10 1.25 -0.03 -0.02 450 AlNiCo 2
FLNG12 7.5 750 45 0.56 46 0.58 12 1.5 -0.035 -0.025 450 AlNiCo 3
FLNGT18 6 600 95 1.19 98 1.23 18 2.25 -0.025 0.01 550 AlNiCo 8
FLNGT20 6.2 620 100 1.25 105 1.31 20 2.5 -0.025 0.01 550
Anisotropic Sintered ALNiCo
FLNG34 11.5 1150 48 0.6 50 0.63 34 4.25 -0.02 0.01 525 AlNiCo 5
FLNGT28 11 1100 58 0.73 60 0.75 28 3.5 -0.02 0.03 525 AlNiCo 6
FLNGT36J 7.2 720 150 1.88 152 1.9 36 4.5 -0.025 0.01 550 AlNiCo 8HC
FLNGT38 8 800 110 1.38 112 1.4 38 4.75 -0.025 0.01 550 AlNiCo 8
FLNGT44 8.5 850 120 1.5 122 1.53 44 5.5 -0.025 0.01 550
FLNGT48 9.2 920 125 1.56 127 1.59 48 6 -0.025 0.01 550
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