Type Material Qualified standard of magnetic property Rate of shrintage
%
Average size Water content of fine powder
%
Name used before
Br(m T) bHc(KA/m) iHc(KJ/m) (BH)max(KJ/m3) Testing direction Spheric (mm) Coarse powder (um) Fine powder
(um)
BMS-1 Ferroxdure 220 139 199 7.56 151 6-12 3-6 0.80-0.90 0.5 Normal isomorphism barium
BMS-1R Ferroxdure 210 131 239 7.16 151 6-12 3-6 0.80-0.90 0.5 Radial barium
BMS-1A Ferroxdure 230 143 239 8.36 151 6-12 3-6 0.80-0.90 0.5 High performance isomorphism barium
BMS-3 Strontian ferrite 380 151 155 26.3 121 6-12 - 0.90-1.00 0.5 Baric isomerism
BMS-4 Strontian ferrite 380 215 223 27.1 131 6-12 3-6 0.80-0.90 0.5 Strontium isomerism
BMS-5 Strontian ferrite 400 223 231 30.2 131 6-12 3-6 0.70-0.80 0.5 Y35
BMS-5H Strontian ferrite 380 267 290 27.1 131 6-12 3-6 0.70-0.78 0.5 Y34