Cast AlNiCo Magnets

AlNiCo material is comprised of aluminum,nickel,cobalt and iron with varying additions of other elements.There are two different manufacturing processes for AlNiCo:Cast and sintered.
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Cast AlNiCo Magnets

AlNiCo material is comprised of aluminum,nickel,cobalt and iron with varying additions of other elements.There are two different manufacturing processes for AlNiCo:Cast and sintered.

Alnico magnets can be made into many shapes and sizes during manufacturing process by using the casting processing method. Cast Alnico magnets are manufactured by pouring the molten metal alloy of Alnico into a mold and then further processing it through heat treated and cooled alternatively. The solidified material has a dark gray appearance on the exterior and may be roughly ground. Magnets that have been polished using machines, may have a shiny gray surface similar to that of steel.

Attributes of Alnico Magnets:

  • high flux density
  • superior temperature stability
  • economical and suitable for the manufacture of magnet of relatively large size
  • excellent temperature characteristics of any standard production magnet material available

Applications of Alnico Magnets:

  • precision instruments
  • advanced electrical meters
  • water meters
  • mobile odometers
  • eletricity motor switch
  • sensors
  • electroacooustic and telecommunication devices
  • spinning topes and microwave devices
Grades Equivalent
MMPA
Class
Remanence
Br
Coercive
Force
Hcb
Maximum
Energy
Product
(BH)max
Density Reversible
Temp.
Coefficient
а(Br)
Reversible
Temp.
Coefficient
а(Hc)
Curie
Temp.
TC
Temp.
Coefficient
TW
Remark
mT Gs KA/m Oe KJ/m3 MGOe g/cm3 %/℃ %/℃
LN10 ALNICO3 600 6000 40 500 10 1.2 6.9 -0.03 -0.02 810 450 Isotropy
LNG13 ALNICO2 700 7000 48 600 12.8 1.6 7.2 -0.03 +0.02 810 450
LNGT18 ALNICO8 580 5800 100 1250 18 2.2 7.3 -0.025 +0.02 860 550
LNG37 ALNICO5 1200 12000 48 600 37 4.65 7.3 -0.02 +0.02 850 525 Anisotropy
LNG40 1250 12500 48 600 40 5 7.3
LNG44 1250 12500 52 650 44 5.5 7.3
LNG52 ALNIC05DG 1300 13000 56 700 52 6.5 7.3
LNG60 ALNICO5-7 1350 13500 59 740 60 7.5 7.3
LNGT28 ALNICO6 1000 10000 57.6 720 28 3.5 7.3 -0.02 +0.03 850 525
LNGT36J ALNICO8HC 700 7000 140 1750 36 4.5 7.3 -0.025 +0.02 860 550
LNGT38 ALNICO8 800 8000 110 1380 38 4.75 7.3 -0.025 +0.02 860 550
LNGT40 820 8200 110 1380 40 5 7.3 -0.025 860 550
LNGT60 ALNICO9 950 9500 110 1380 60 7.5 7.3 -0.025 +0.02 860 550
LNGT72 1050 10500 112 1400 72 9 7.3 -0.025 860 550