Magnet Shape: Disc / Disk / Round
Material: Hard Ferrite (Ceramic)
Coating: No Coating
Grade(Chinese Stardard): Y33
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 4.4-4.6 KGs (mT): 440-460 mT
Intrinsic Coercivity Force (Hcj): 3.58-3.83 KOe 285-305 KA/m
Coercivity Force (Hcb): 3.69-3.89 KOe 294-310 KA/m
Energy Density (BH)max: 4.6-5.1 MGOe 36.6-40.6 KJ/m³
Operating Temperature: -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Size (Can be customized according to customer drawings):
Outside Diameter(D): 25 mm
Thickness(T): 15 mm
Tolerance: +/-2% mm
Delivery time 7-25 days
Measurements
The most common hard ferrites are:
Strontium ferrite, SrFe12O19 (SrO·6Fe2O3), a common material for permanent magnet applications.
Barium ferrite, BaFe12O19 (BaO·6Fe2O3), a common material for permanent magnet applications. Barium ferrites are robust ceramics that are generally stable to moisture and corrosion-resistant. They are used in e.g. subwoofer magnets and as a medium for magnetic recording, e.g. onmagnetic stripe cards.
Cobalt ferrite, CoFe2O4 (CoO·Fe2O3), used in some media for magnetic recording.
