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SEC PRODUCT
Magnet Series

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> SEC PRODUCTS > Alnico Magnet
Alnico Magnet
SEC Magnet Series
Summary

AlNiCo magnet is divided into two types. Both types contain Aluminum, Nickel, and Cobalt, but they are categorized based on the purpose of use. At first, cast AlNiCo magnet has high flux density and stability against temperature to be used widely for a long time, and it has been applied in various fields. Sintered AlNiCo magnet has been used for small products and products with many criteria. Although sintered AlNiCo magnet is weak and few properties, it is mechanically stronger than cast AlNiCo magnet. Sintered AlNiCo magnet is used in all types of sensors, calibrators, controllers, etc. AlNiCo magnet is used in isotropic and anisotropic; the magnetic direction shall be designated at the design state for isotropic materials, while the magnetic direction may be set after design for anisotropic materials. AlNiCo magnet is mostly used when the loss of magnetic force due to temperature is significant, and it is also used when the configuration is complex or when the work temperature is high.


Property

  Due to high stability against temperature, loss of magnetic force does not occur even under high temperature.
  Due to high gradient, cast magnet is processed mainly through grinding.
  Brittleness is fairly low compare to oxide magnet, and isotropic AlNiCo is able to have multipolar magnetization.
  Weak coercivity compare to high magnetic flux density.
  Sintered AlNiCo is comparatively expensive to cast AlNiCo.
  Mass production, injection, and heteromorphy available for sintered AlNiCo.


Use

Speaker, Calibrators, Microphone, Lead Switch, Amplifier, etc.


Magnetic Properties

Grade Br Hc (BH)max Curie Temp. Temp.Coe US standard IEC sandard
[mT]
[Gs]		 [KA/m]
[Oe]		 [KJ/㎥]
[MGOe]		 [℃] [%/℃] MVPA
Equivaient		 IEC
Equivaient
FLN8 550
5500		 42
530		 9.0
1.13		 760 0.022 [S.Alnico 3] Alnico 9/3
FLNG12 700
7000		 50
620		 12.4
1.55		 810 0.014 S.Alnico 2 Alnico 12/6
FLNGT18 580
5800		 90
1130		 18.0
2.20		 860 0.020 [S.Alnico 3] Alnico 17/9
FLNG34 1100
11000		 48
600		 34.0
4.25		 890 0.016 S.Alnico 5 Alnico 37/5
FLNGT28 1000
10000		 57
710		 28.0
3.50		 850 0.020 S.Alnico 6 Alnico 37/5
FLNGT38 800
8000		 120
1500		 38.0
4.75		 850 0.020 S.Alnico 8 Alnico 36/6
FLNGT38 800
8000		 122
1530		 42.0
5.25		 850 0.020 Alnico 38/11
FLNGT33J 700
7000		 140
1750		 33.0
4.13		 860 0.020 S.Alnico 8HC Alnico 36/15