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Magnetic Properties of Alnico Magnets
(Aluminium-Nickel-Cobalt)
 
Magnetic Properties of Casted Alnico
Ref. No. Material
Grade
Remanence Intrinsic Coercivity Max. Energy Product
Br
(mT)
Br
(kGs)
iHc
(kA/m)
iHc
(kOe)
(BH)max
(KJ/m3)
(BH)max
(MGOe)
Alnico 3 *LN9 680 6.8 30 0.38 9.0 1.13
*LN10 600 6.0 39.8 0.50 10.0 1.20
Alnico 2 *LNG12 720 7.2 39.8 0.5 12.4 1.55
*LNG13 700 7.0 48.0 0.60 12.8 1.60
Alnico 5 LNG37 1200 12.0 48.0 0.60 37.0 4.65
LNG40 1250 12.5 48.0 0.60 40.0 5.0
LNG44 1250 12.5 52.0 0.65 44.0 5.5
Alnico 5DG LNG52 1300 13.0 56.0 0.70 52.0 6.5
Alnico 5-7 LNG60 1350 13.5 59.0 0.74 60.0 7.5
Alnico 6 LNGT28 1000 10.0 58.0 0.72 28.0 3.5
Alnico 8HC LNGT36J 700 7.0 140.0 1.75 36.0 4.5
Alnico 8 *LNGT18 580 5.8 100.0 1.25 18.0 2.2
Alnico 8 LNGT32 800 8.0 100.0 1.25 32.0 4.0
LNGT40 800 8.0 110.0 1.38 40.0 5.0
Alnico 9 LNGT60 900 9.0 110.0 1.38 60.0 7.5
LNGT75 1050 10.5 112.0 1.4 72.0 9.0
Note: * means isotropy

Magnetic Properties of Sintered Alnico
Material
Grade
Remanence Coercivity Intrinsic Coercivity Max. Energy Product
Br
(mT)
Br
(kGs)
bHc
(kA/m)
bHc
(kOe)
iHc
(kA/m)
iHc
(kOe)
(BH)max
(KJ/m3)
(BH)max
(MGOe)
*FLN8 520 5.2 40 0.5 43 0.54 8-10 1.0-1.25
*FLNG12 700 7.0 40 0.5 43 0.54 12-14 1.5-1.75
*FLNGT14 570 5.7 76 0.95 78 0.98 14-16 1.75-2.00
*FLNGT18 560 5.6 88 1.1 90 1.13 18-22 2.25-2.75
FLNG28 1050 10.5 46 0.58 47 0.59 28-33 3.5-4.15
FLNG34 1100 11.0 50 0.63 51 0.64 34-38 4.3-4.8
FLNGT28 1000 10.0 56 0.7 57 0.71 28-30 3.5-3.8
FLNGT31 780 7.8 104 1.3 90 1.13 31-36 3.9-4.5
FLNG33J 650 6.5 135 1.7 150 1.88 33-36 4.15-4.5
FLNGT38 800 8.0 123 1.55 126 1.58 38-42 4.75-5.3
FLNGT42 880 8.8 120 1.5 122 1.53 42-48 5.3-6.0
Note: * means isotropy



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