AlNiCo Magnet

AlNiCo magnets are the oldest permanent mangets, including Aluminium, Nickel、Cobalt、Ferrum and other Micro metal elements. According to different technology, AlNiCo magnet can be divided into Sintered AlNiCo and Cast AlNiCo.

The shapes of AlNiCo magnet are mainly round and rectangle. Foundry technique can realize different shapes. Comparing with foundry technique, Cast AlNiCo is limited to small specifications. Among different permanent materials,

Cast AlNiCo is with the lowest reversible temperature coefficient and its max. working temperature can be up to 600 Celsius degree. AlNiCo magnets are widely used in various instruments and meters and other fields.

Alnico Magnets include Sintered Alnico magnets and Case Alnico magnets.

Cast Alnico Magnets

Cast Alnico magnets, which are alumium nickel-cobaltiron alloys, are the most established and windely used magnet materials.Because of their high flux density and superior temperature stability, cast alnico have been accepted in the widest range of application. Alnico magnets can be both anisotropic and isotropic. Anisotropic grades are oriented in the manufacturing direction and must be magnetize in the direction of orientation. Isotropic grades are not oriented and can be magnetized in any direction.

Sintered Alnico Magnets

Sintered Alnico magnet ,which are also alumium nickel-cobaltiron alloys, is usually restricted to smaller sizes. it has slightly lower magnetic properties, but better mechanical strength than cast alnico magnet. Sintered Alnico magnet is widely used in all kinds of sensors, meters, controller speedometer and other applications.

Typical Magnetic Performance for Sintered Alnico

• Grade Br
  mT Gs
  Min Max Hc
  kA/m kOe
  Min Max (BH)max
  kJ/m3 MGOe
  Min Max D
  g/cm3 Curie Temp
  °C US standard
  MMPA Equivalent Remark
• *FLN8 520
  580 5.2
  5.8 43
  47 540
  590 8
  10 1.00
  1.25 6.8 760 Alnico 3
• *FLNG12 700
  780 7.0
  7.8 40
  50 540
  650 12
  14 1.50
  1.75 7.0 810 Alnico 2
• *FLNGT14 570
  630 5.7
  6.3 76
  86 980
  1100 14
  16 1.75
  2.00 7.1 850 Alnico 8
• *FLNGT18 560
  620 5.6
  6.2 88
  100 1130
  1280 18
  22 2.25
  2.75 7.2 850 Alnico 8
• FLNG28 1050
  1100 10.5
  11.0 46
  50 590
  640 28
  33 3.50
  4.15 7.2 850 Alnico 5
• FLNG34 1100
  1180 11.0
  11.8 50
  54 640
  690 34
  38 4.30
  4.80 7.2 890 Alnico 5
• FLNGT28 1000
  1050 10
  10.5 56
  61 710
  770 28
  30 3.50
  3.80 7.2 850 Alnico 6
• FLNGT31 780
  830 7.8
  8.3 104
  115 1130
  1480 31
  36 3.90
  4.50 7.2 850 Alnico 6
• FLNGT33 650
  680 6.5
  6.8 136
  143 1880
  2000 33
  36 4.15
  4.50 7.2 850 Alnico 8
• FLNGT38 800
  850 8.0
  8.5 123
  129 1580
  1660 38
  42 4.75
  5.30 7.2 850 Alnico 8
• FLNGT42 880
  920 8.0
  8.5 120
  131 1530
  1680 42
  48 5.30
  6.00 7.2 850 Alnico 8

If special Method Applied,customized properties can be achieved. *=Isotropic other=Anisotropic