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Hard Ferrite Magnet
Ferrite Material grade
Demagnetization Curves
Dimension Range/Nominal Tolerance
Ferrite Block Magnets
Ferrite Ring Magnets
Ferrite Segment Magnets
Ferrite Assembly
Customer Specific Ferrite Magnets
Magnetization Direction of Ferrite Magnets
More Information on Ferrite Magnets
Catalogue of Ferrite Magnets (PDF)
Other Magnetic Materials
Magnetic Devices

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Pull force between two disc magnets
Pull force between disc magnet and flat
Pull force between two block magnets
Pull force between block magnet and flat
Magnetic field of a Disc magnet
Magnetic field of a block magnet

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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