Magnet Shape: Irregular / Special-Shaped / Allotype
Material: Hard Ferrite (Ceramic)
Coating: No Coating
Grade(Chinese Stardard): Y28
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 3.7-4.0 KGs (mT): 370-400 mT
Intrinsic Coercivity Force (Hcj): 2.20-3.64 KOe 175-210 KA/m
Coercivity Force (Hcb): 2.26-2.76 KOe 180-220 KA/m
Energy Density (BH)max: 3.3-3.8 MGOe 26.0-30.0 KJ/m³
Operating Temperature: -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Size:
Outside Diameter(R), Inner Diameter(r), Width, Height, Thickness (Custom design data)
Tolerance: +/-2% mm
Delivery time 7-25 days
Ferrite / Ceramic Magnets resist chemical attacks from many of the alkaline solutions, dilute acids, organic solvents, and some hydroxides. They are fine for use in salt water conditions (no corrosion issues at all). It can be etched with acids (e.g. hydrochloric acid).
They do not need a coating but have been known to be coated only in specialist applications where any ferrite surface dust is not wanted (the coating locks in any dust that may remain from the production processes – an issue which does not affect over 99% of all applications). An example where coating may be required is in medical applications (e.g. painting, nickel plating, etc).
