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alnico1alnico2

The Alnico material (composed predominantly of aluminum, nickel, and cobalt with minor amounts of other elements including titanium and copper) is manufactured through either a casting or sintering process. Compared to modern materials alnico has a low coercivity. The main advantage of alnico is the very low temperature coefficient and the wide temperature range from -273 oC to more than +400 oC for practical use.



Sintered AlNiCo magnet
grade Br Hcj Hcb (BH)max density temperature
coefficient % change per C
curie temperature
Tc
remark
mT Gs KA/m Oe KA/m Oe KJ/m3 MGOe g/cm3 %/K
FLN8 520 5200 43 540 40 500 8-10 1.0-1.25 6.8 -0.022 760 isotropic
FLNG12 700 7000 43 540 40 500 12-14 1.5-1.75 7.0 -0.014 810
FLNGT14 570 5700 78 980 76 950 14-16 1.75-2.0 7.1 -0.020 850
FLNGT18 560 5600 90 1130 88 1100 18-22 2.25-2.75 7.2 -0.020 850
FLNG28 1050 10500 47 590 46 580 28-33 3.5-4.15 7.2 -0.016 850 anisotropic
FLNG34 1100 11000 51 640 50 630 34-38 4.3-4.8 7.2 -0.016 890
FLNGT28 1000 10000 57 710 56 700 28-30 3.5-3.8 7.2 -0.020 850
FLNGT31 780 7800 106 1130 104 1300 33-36 3.9-4.5 7.2 -0.020 850
FLNG33J 650 6500 150 1880 136 1700 31-36 4.15-4.5 7.2 -0.020 850
FLNGT38 800 8000 126 1580 123 1550 38-42 4.75-5.3 7.2 -0.020 850
FLNGT42 880 8800 122 1530 120 1500 42-48 5.3-6.0 7.25 -0.020 850

1.Any size is available on request.

2.Customized properties can be achieved if special method applied.

NOTE: 1mT=10Gs 1KA/m=4лOe 1KJ/m3=4л?0MGOe

Cast AlNiCo magnets,which are aluminum nickei-cobalt-iron alloys,are the most established and widely used permanent magnet materials. Because of their high flux density and superior temperature stability,cast magnets have been accepted
in the widest range of application.


Magnetic Characteristic of cast AlNiCo


Cast AlNiCo magnet
material Equivalent MMPA class Br Hcj BHmax Density temperature
coefficient
curie temp.
Tc
working temp.
Tw
mT Gs KA/m Oe KJ/m3 MGOe g/cm3 Near Br %/℃ Near Hcj %/℃
LN9 AlNiCo 3 680 6800 30 380 9.0 1.13 6.9 -0.03 -0.02 810 450
LN10 600 6000 40 500 10.0 1.20 6.9 -0.03 -0.02 810 450
LNG12 AlNiCo 2 720 7200 45 500 12.4 1.55 7.0 -0.03 -0.02 810 450
LNG13 700 7000 48 600 12.8 1.60 7.0 -0.03 -0.02 810 450
LNG37 AlNiCo 5 1200 12000 48 600 37.0 4.65 7.3 -0.02 +0.02 860 525
LNG40 1250 12500 48 600 40.0 5.00 7.3 -0.02 +0.02 860 525
LNG44 1250 12500 52 650 44.0 5.50 7.3 -0.02 +0.02 860 525
LNG52 AlNiCo 5DG 1300 13000 56 700 52.0 6.50 7.3 -0.02 +0.02 860 525
LNG60 AlNiCo 5-7 1350 13500 59 740 60.0 7.5 7.3 -0.02 +0.02 860 525
LNGT28 AlNiCo 6 1000 10000 58 720 28.0 3.50 7.3 -0.02 +0.03 860 525
LNGT36J AlNiCo 8HC 700 7000 140 1750 36.0 4.50 7.3 -0.025 +0.02 860 550
LNGT18 AlNiCo 8 580 5800 100 1250 18.0 2.2 7.3 -0.025 +0.02 860 550
LNGT32 AlNiCo 8 800 8000 100 1250 32.0 4.0 7.3 -0.025 +0.02 860 550
LNGT40 800 8000 110 1380 40.0 5.0 7.3 -0.025 +0.02 860 550
LNGT60 AlNiCo 9 900 9000 110 1380 60.0 7.50 7.3 -0.025 +0.02 860 550
LNGT72 1050 10500 112 1400 72.0 9.00 7.3 -0.025 +0.02 860 550

 

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