NdFeB

SmCo

Alnico

Ferrite or Ceramic

Rubber Magnets

The Magnetic Component

   
 

Alnico

   
 
Sintered Alnico   Cast Alnico
 
 
 
                          
  Brief introduction
 

The Alnico (Aluminum, Nickel, Cobalt) family was introduced in the 1930's. It's characterized by excellent temperature stability, high residual induction, relatively high energies and resistant to corrosion. These were the first materials specifically designed for permanent magnets to be used in meters and instruments commercially.

Alnico is vailable in both cast and sintered forms. Sintered Alnico offer slightly lower magnetic properties but better mechanical characteristics than cast Alnico. These materials are brittle, hard and cannot effectively be machined by conventional techniques other than by grinding.

   
 

Sintered Alnico

 
 

Grade

(BH)max Br Hcj Hcb D α(Br) Tc REMARK
KJ/CM3 MGOe MT Gs KA/m Oe KA/m Oe g/cm3 %/K
FLN8 8-10 1.0-1.25 520 5200 43 540 40 500 6.7 -0.020 760 Isotropic
FLNG12 12-14 1.5-1.75 700 7000 43 540 40 500 7.0 -0.014 810
FLNGT14 14-16 1.75-2.0 570 5700 78 980 76 950 7.1 -0.020 850
FLNGT18 18-22 2.25-2.75 600 6000 107 1350 95 1200 7.2 -0.020 850
FLNGT28 28-33 3.5-4.15 1050 10500 47 590 46 580 7.2 -0.016 850 Anisotropic
FLNG34 34-38 4.3-4.8 1100 11000 51 640 50 630 7.2 -0.016 890
FLNGT28 28-30 3.5-3.8 1000 10000 57 710 56 700 7.2 -0.020 850
FLNG38J 38-40 4.75-5.0 730 7300 163 2050 151 1900 7.2 -0.200 850
FLNGT38 38-42 4.75-5.3 800 8000 126 1580 123 1550 7.2 -0.020 850
FLNGT42 42-48 5.3-6.0 880 8800 122 1530 120 1500 7.25 -0.020 850
   
 

   

 

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