Item No.: C10-Ceramic-2  
Magnet Shape: Ring / Tube          
Material: Hard Ferrite (Ceramic)
Composite:      Fe2O3 (BaCo3 or SrO3), Fe3O4 (SrCo3, SiO2) 
Type: anisotropic or isotropic
Style:         Sintered Permanent Magnet
Grade(USA Stardard):         C10
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 4.00 KGs (mT):  400 mT
Intrinsic Coercivity Force (Hcj):    3.62 KOe    288 KA/m
Coercivity Force (Hcb):              3.51 KOe    280 KA/m
Energy Density (BH)max:              3.82 MGOe   30.4 KJ/m³
Operating Temperature:               -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Size Can be customized according to customer drawings:
Tolerance:         +/-2% mm
Delivery time           7-25 days
Hard ferrites consist of oxidized metals and are thus included in the ceramic materials group. They consist of approx. 90% iron oxide (Fe2O3) and 10% alkaline earth oxide (BaO or SrO) – raw materials which are plentiful and inexpensive. Today, they represent the largest proportion of permanent magnets produced. As is typical of oxide ceramics, hard ferrite magnets display relatively resistant behavior towards moisture, solvents, alkaline solutions, weak acids, salts, lubricants and gas pollutants. Generally, hard ferrite magnets can therefore be used without additional corrosion protection. Isotropic magnets are shaped by compressing. Anisotropic magnets are compressed within a magnetic field. This provides the magnet with a preferential direction and triples its energy density.