Hard Ferrite Magnet

Material Grade

HF Block

HF Ring

HF Segment

Assembly

Catalog

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Hard Ferrite Magnets, Ceramic Magnets

 

Catalogue of Sintered Hard Ferrite Magnets (pdf) Magnetic Properties (Material Grades) of Ferrite/Ceramic Magnets Typical Demagnetization Curves Dimension Range / Nominal Tolerance Block Magnets for Different Applications Ring Magnets for Applications to Loudspeakers and Woofers Arc/Segment Magnets for Applictions to Motors and Generators Customer Specific Magnets Direction of Magnetization More Information on Ferrite/Ceramic Magnets Other Magnetic Materials Purchase Order Form für Ferrite Magnets (Doc File) Payment Terms (PDF Datei) Form for Payment with Credit Card (Doc Datei)

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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