Ferrite magnets (also know as ceramic magnets ), As nonmetallic type of permanent magnetic material, ferrite magnet is utilizing iron oxide (Fe2O3), Barium Carbonate (BaCO3) or Strontium Carbonate (SrCO3) as raw material and then manufactured through ceramics process. Maximum operating temperature of sintered ferrite magnet can arrive 250 degrees Celsius. Sintered ferrite magnet also has superior corrosion resistance.
The most representative applications of sintered ferrite magnet include loudspeakers, permanent magnet (PM) motors and generators. Sintered ferrite magnet is generally used in various areas in the past several decades and its market share is still very large.
Item | Grade | Remanence Induction | Coercive Force | Intrinsic Coercive Force | Maximum Energy Product | ||||
---|---|---|---|---|---|---|---|---|---|
Br | HcB | HcJ | (BH)max | ||||||
T | KGs | KA/m | KOe | KA/m | KOe | KJ/m³ | MGOe | ||
Ferrite | Y8T | 200-235 | 2.0-2.35 | 125-160 | 1.57-2.01 | 210-280 | 2.64-3.52 | 6.5-9.5 | 0.8-1.2 |
Y10T | 200-235 | 2.0-2.35 | 128-160 | 1.61-2.01 | 210-280 | 2.64-3.52 | 6.4-9.6 | 0.8-1.2 | |
Y20 | 320-380 | 3.2-3.8 | 135-190 | 1.70-2.39 | 140-195 | 1.76-2.45 | 18.0-22.0 | 2.3-2.8 | |
Y22H | 310-360 | 3.1-3.6 | 220-250 | 2.76-3.14 | 280-320 | 3.52-4.02 | 20.0-24.0 | 2.5-3.0 | |
Y23 | 320-370 | 3.2-3.7 | 170-190 | 2.14-2.39 | 190-230 | 2.39-2.89 | 20.0-25.5 | 2.5-3.2 | |
Y25 | 360-400 | 3.6-4.0 | 135-170 | 1.70-2.14 | 140-200 | 1.76-2.51 | 22.5-28.0 | 2.8-3.5 | |
Y26H | 360-390 | 3.6-3.9 | 220-250 | 2.76-3.14 | 225-255 | 2.83-3.20 | 23.0-28.0 | 2.9-3.5 | |
Y26H-1 | 360-390 | 3.6-3.9 | 200-250 | 2.51-3.14 | 225-255 | 2.83-3.20 | 23.0-28.0 | 2.9-3.5 | |
Y26H-2 | 360-380 | 3.6-3.8 | 263-288 | 3.30-3.62 | 318-350 | 4.00-4.40 | 24.0-28.0 | 3.0-3.5 | |
Y27H | 370-400 | 3.7-4.0 | 205-250 | 2.58-3.14 | 210-255 | 2.64-3.20 | 25.0-29.0 | 3.1-3.6 | |
Y28 | 370-400 | 3.7-4.0 | 175-210 | 2.20-2.64 | 180-220 | 2.26-2.76 | 26.0-30.0 | 3.3-3.8 | |
Y28H-1 | 380-400 | 3.8-4.0 | 240-260 | 3.02-3.27 | 250-280 | 3.14-3.52 | 27.0-30.0 | 3.4-3.8 | |
Y28H-2 | 360-380 | 3.3-3.8 | 271-295 | 3.41-3.71 | 382-405 | 4.80-5.09 | 26.0-30.0 | 3.3-3.8 | |
Y30 | 370-400 | 3.7-4.0 | 175-210 | 2.20-2.64 | 180-220 | 2.26-2.76 | 26.0-30.0 | 3.3-3.8 | |
Y30BH | 380-390 | 3.8-3.9 | 223-235 | 2.80-2.95 | 231-245 | 2.90-3.08 | 27.0-30.0 | 3.4-3.8 | |
Y30H-1 | 380-400 | 3.8-4.0 | 230-275 | 2.89-3.46 | 235-290 | 2.95-3.64 | 27.0-32.0 | 3.4-4.0 | |
Y30H-2 | 395-415 | 3.95-4.15 | 275-300 | 3.46-3.77 | 310-335 | 3.90-4.21 | 27.0-32.5 | 3.4-4.1 | |
Y32 | 400-420 | 4.0-4.2 | 160-190 | 2.01-2.39 | 165-195 | 2.07-2.45 | 30.0-33.5 | 3.8-4.2 | |
Y32H-1 | 400-420 | 4.0-4.2 | 190-230 | 2.39-2.89 | 230-250 | 2.89-3.14 | 31.5-35.0 | 4.0-4.4 | |
Y32H-2 | 400-440 | 4.0-4.4 | 224-240 | 2.81-3.02 | 230-250 | 2.89-3.14 | 31.0-34.0 | 3.9-4.3 | |
Y33 | 410-430 | 4.1-4.3 | 220-250 | 2.76-3.14 | 225-255 | 2.83-3.20 | 31.5-35.0 | 4.0-4.4 | |
Y33H | 410-430 | 4.1-4.3 | 250-270 | 3.14-3.39 | 250-275 | 3.14-3.46 | 31.5-35.0 | 4.0-4.4 | |
Y34 | 420-440 | 4.2-4.4 | 200-230 | 2.51-2.89 | 205-235 | 2.58-2.95 | 32.5-36.0 | 4.1-4.5 | |
Y35 | 430-450 | 4.3-4.5 | 215-239 | 2.70-3.00 | 217-241 | 2.73-3.03 | 33.1-38.2 | 4.2-4.8 | |
Y36 | 430-450 | 4.3-4.5 | 247-271 | 3.10-3.41 | 250-274 | 3.14-3.44 | 35.1-38.3 | 4.4-4.8 | |
Y38 | 440-460 | 4.4-4.6 | 285-305 | 3.58-3.83 | 294-310 | 3.69-3.90 | 36.6-40.6 | 4.6-5.1 | |
Y40 | 440-460 | 4.4-4.6 | 330-354 | 4.15-4.45 | 340-360 | 4.27-4.52 | 37.5-41.8 | 4.7-5.3 |
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