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Hard Ferrite Magnet
Ferrite Material grade
Demagnetization Curves
Dimension Range/Nominal Tolerance
Ferrite Block Magnets
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Magnetization Direction of Ferrite Magnets
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Hard Ferrite Magnets (Ceramic Magnets)
 

Material Information
  • Produced by powder metallurgical method with chemical compostition of Ba/SrO.6 Fe2 O3
  • Relativly brittle & hard
  • Good resistance to demangnetization
  • Excellent corrosion resistance
  • Raw material is readily available and low in cost
  • Good temperature stability
  • high coercive force and high electric resistance
  • Most widely used permanent magnets.

Typical Physical Properties
Curie Temperature (C) 450
Maximum Operating Temperature (C) 250
Hardness (Hv) 480-580
Density (g/cm3) 4.8 - 4.9
Relative Recoil Permeability (µrec) 1.05 - 1.20
Saturation Field Strength, kOe (kA/m) 10 (800)
Temperature Coefficient of Br (%/C) -0.2
Temperature Coefficient of iHc (%/C) 0.3
Tensile Strength (N/mm) <100
Transverse Rupture Strength (N/mm) 300




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