Alliance Ferrite C-8



Ferrite or Ceramic magnets are commonly used as arcs in DC motors or rings in loudspeakers



Density ρ

4.8 - 5 g/cm³ at 20 °C


Coercive force Hc

239000 - 271000 A/m at 20 °C

Intrinsic coercivity Hc,i

243000 - 275000 A/m at 20 °C

Maximum energy product BHmax

27.1 - 31.2 kJ/m³ at 20 °C

Remanence Br

0.38 - 0.41 T at 20 °C

Reversible temperature coefficient coercivity βHc

-0.04 %/ °C at 20 °C

Reversible temperature coefficient remanence αBr

0.18 %/ °C at 20 °C


Elastic modulus E

150 GPa at 20 °C

Flexural strength σbend

55 MPa at 20 °C

Tensile strength Rm

20 - 50 MPa at 20 °C


Max service temperature Tmax

350 °C

Technological properties

Application areas

Motors, Loudspeakers


Most common and least expensive magnet in industry

This material data has been provided by Alliance LLC.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.