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Alnico Magnet Magnet Material Specs & Technical Data

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Alnico (aluminum–nickel–cobalt) magnets are produced in both cast and sintered forms and offer energy products typically ranging from approximately 2 to 9 MGOe. These materials are characterized by excellent thermal stability, low temperature coefficients, and strong resistance to corrosion, making them well suited for applications operating at elevated temperatures. Common grades include cast Alnico 5 and Alnico 8, with higher-performance grades such as Alnico 5-7 and Alnico 9 used when increased magnetic output is required.

Please refer to the table below for Alnico materials specs. Click any grade to view its demagnetization (B-H) curve. 

Download Alnico Materials Chart (PDF) - click here

Grade Remanence Flux Density Coercivity Max Energy Density Temperature
Coefficient		 Operating
Temperature		 MMPA
Br HcB HcJ (BH)max TK(Br) %/°C TK(HcJ) %/°C TwMax
T kGs kA/m kOe kA/m kOe kJ/m³ MGOe %/°C %/°C °C
Isotropic Cast ALNiCo
LN10 0.65 6.5 38 0.48 40 0.5 10 1.25 -0.035 -0.025 450 AlNiCo 3
LNG12 0.75 7.5 45 0.56 46 0.58 12 1.5 -0.03 -0.02 450 AlNiCo 2
LNGT18 0.55 5.5 90 1.13 97 1.21 18 2.25 -0.025 +0.01 550 AlNiCo 8
Anisotropic Cast ALNiCo
LNG34 1.1 11 50 0.63 52 0.65 34 4.25 -0.02 +0.01 525 AlNiCo 5
LNG37 1.18 11.8 49 0.61 51 0.64 37 4.63 -0.02 +0.01 525
LNG40 1.2 12 50 0.63 52 0.65 40 5 -0.02 +0.01 525
LNG44 1.25 12.5 52 0.65 54 0.68 44 5.5 -0.02 +0.01 525
LNGT28 1.05 10.5 56 0.7 58 0.73 28 3.5 -0.02 +0.03 525 AlNiCo 6
LNG52 1.3 13 56 0.7 58 0.73 52 6.5 -0.02 +0.03 525 AlNiCo 5DG
LNG60 1.35 13.5 58 0.73 60 0.75 60 7.5 -0.02 +0.03 525 AlNiCo 5-7
LNGT34 0.8 8 104 1.31 106 1.33 34 4.25 -0.025 +0.01 550 AlNiCo 8
LNGT38 0.8 8 110 1.38 112 1.4 38 4.75 -0.025 +0.01 550
LNGT40 0.85 8.5 115 1.44 117 1.46 40 5 -0.025 +0.01 550
LNGT44 0.9 9 115 1.44 117 1.46 44 5.5 -0.025 +0.01 550
LNGT36J 0.72 7.2 150 1.88 144 1.8 36 4.5 -0.025 +0.01 550 AlNiCo 8HC
LNGT40J 0.75 7.5 144 1.8 159 2 40 5 -0.025 +0.01 550
LNGT60 1 10 110 1.38 112 1.4 60 7.5 -0.025 +0.01 550 AlNiCo 9
LNGT72 1.05 10.5 115 1.44 117 1.46 72 9 -0.025 +0.01 550
LNGT80 1.08 10.8 120 1.5 122 1.53 80 10 -0.025 +0.01 550
LNGT96 1.1 11 128 1.6 122 1.53 96 12 -0.025 +0.01 550
Isotropic Sintered ALNiCo
FLNG10 0.65 6.5 40 0.5 42 0.53 10 1.25 -0.035 -0.02 450 AlNiCo 2
FLNG12 0.75 7.5 45 0.56 46 0.58 12 1.5 -0.035 -0.025 450 AlNiCo 3
FLNGT18 0.6 6 95 1.19 98 1.23 18 2.25 -0.025 +0.01 550 AlNiCo 8
FLNGT20 0.62 6.2 100 1.25 105 1.31 20 2.5 -0.025 +0.01 550
Anisotropic Sintered ALNiCo
FLNG34 1.1 11 50 0.63 52 0.65 34 4.25 -0.02 +0.01 525 AlNiCo 5
FLNG37 1.18 11.8 49 0.61 51 0.64 37 4.63 -0.02 +0.01 525
FLNGT28 1.05 10.5 56 0.7 58 0.73 28 3.5 -0.02 +0.03 525 AlNiCo 6
FLNGT36J 0.72 7.2 150 1.88 144 1.8 36 4.5 -0.025 +0.01 550 AlNiCo 8HC
FLNGT38 0.8 8 104 1.31 106 1.33 38 4.25 -0.025 +0.01 550 AlNiCo 8
FLNGT40J 0.75 7.5 144 1.8 159 2 40 5 -0.025 +0.01 550
FLNGT44 0.9 9 115 1.44 117 1.46 44 5.5 -0.025 +0.01 550
FLNGT48 0.92 9.2 115 1.44 117 1.46 48 6 -0.025 +0.01 550
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