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Magnetic Properties of Ferrite Magnets


Images Ferrite Magnet Grade Surface Coating Dimension Range Magnetizaton orientation Applications

Grade of Ferrite Magnets ( also called Ceramic Magnet)

Grade   Br HcB HcJ (BH)max
mT KG KA/m KOe KA/m KOe Kj/m3 MGOe
Y8T 200~235 2.00~2.35 125~160 1.57~2.01 210~280 2.64~3.51 6.50~9.50 0.8~1.2
Y22H 310~360 3.10~3.60 220~250 2.77~3.14 280~320 3.51~4.02 20.0~24.0 2.5~3.0
Y25 360~400 3.60~4.00 135~170 1.70~2.14 140~200 1.76~2.51 22.5~28.0 2.8~3.5
Y26H-1 360~390 3.60~3.90 220~250 2.51~3.14 225~255 2.83~3.20 23.0~28.0 2.9~3.5
Y26H-2 360~380 3.60~3.80 263~288 3.30~3.62 318~350 3.99~4.40 24.0~28.0 3.0~3.5
Y27H 350~380 3.50~3.80 225~240 2.83~3.01 235~260 2.95~3.27 25.0~29.0 3.1~3.6
Y28 370~400 3.70~4.00 175~210 2.20~3.64 180~220 2.26~2.76 26.0~30.0 3.3~3.8
Y28H-1 380~400 3.80~4.00 240~260 3.01~3.27 250~280 3.14~3.52 27.0~30.0 3.3~3.8
Y28H-2 360~380 3.60~3.80 271~295 3.40~3.70 382~405 4.80~5.08 26.0~32.5 3.4~3.8
Y30H-1 380~400 3.80~4.00 230~275 2.89~3.46 235~290 2.95~3.64 27.0~32.5 3.3~3.8
Y30H-2 395~415 3.95~4.15 275~300 3.45~3.77 310~335 3.89~4.20 27.0~32.0 3.4~4.1
Y32 400~420 4.00~4.20 160~190 2.01~2.37 165~195 2.07~2.45 30.0~33.5 3.4~4.0
Y32H-1 400~420 4.00~4.20 190~230 2.39~2.89 230~250 2.89~3.14 31.5~35.0 3.9~4.4
Y32H-2 400~440 4.00~4.40 224~240 2.80~3.01 230~250 2.89~3.14 31.0~34.0 3.9~4.3
Y33 410~430 4.10~4.30 220~250 2.76~3.14 225~255 2.83~3.20 31.5~35.0 3 .9~4.4
Y33H 410~430 4.10~4.30 250~270 3.14~3.39 250~275 3.14~3.45 31.5~35.0 3 .9~4.4
Y34 420~440 4.20~4.40 200~230 2.51~2.89 205~235 2.57~2.95 32.5~36.0 4.1~4.4
Y35 430~450 4.30~4.50 215~239 2.70~3.00 217~241 2.73~3.03 33.1~38.2 4 .1~4.8
Y36 430~450 4.30~4.50 247~271 3.10~3.40 250~274 3.14~3.44 35.1~38.3 4 .4~4.8
Y38 440~460 4.40~4.60 285~305 3.58~3.83 294~310 3.69~3.89 36.6~40.6 4 .6~5.1
Y40 440~460 4.40~4.60 330~354 4.15~4.45 340~360 4.27~4.52 37.6~41.8 4 .7~5.2


International Standard
Material    Br HcB HcJ (BH)max
mT KG KA/m KOe KA/m KOe KJ/m3 MGOe
C1 230 2.3 148 1.86 258 3.5 8.36 1.05
C5 380 3.8 191 2.4 199 2.5 27 3.4
C7 340 3.4 258 3.23 318 4 21.9 2.75
C8A 385 3.85 235 2.95 242 3.05 27.8 3.5
C8B 420 4.2 232 2.913 236 2.96 32.8 4.12
C9 380 3.8 280 3.516 320 4.01 26.4 3.32
C10 400 4 288 3.617 280 3.51 30.4 3.82
C11  430 4.3 200 2.512 204 2.56 34.4 4.32

Remark:                        
Density: 4.5—5.0G/cm3                             
             Tc≥450℃                        
             The best range of working temperature:  -40 — +85℃                        
             α(Br)=－0.2%/℃          range from 0℃ to 100℃.                               
             α(Hcj)=0.2－0.5%/℃   range from 0℃ to 100℃. 

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