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Products Permanent Magnet >> Ferrite Magnet

Ferrite Magnet

Ferrite MagnetFerrite magnet is a kind of permanent magnet that made from iron oxide and barium or strontium carbonate by ceramic processing technology. So it’s also called as ceramic magnet.

Special maching process needed for Ferrite magnet because it is brittle. Ferrite magnet can be made to different shapes and sizes by dry pressing then sintered, that is sintered ferrite magnet. Beside sintered ferrite magnet, bonded ferrite magnet(injection ferrite magnet) is existed. But sintered ferrite magnet are popular and widely used.

Ferrite magnet are the most commonly used permanent magnet material just because of its low cost, excellent corrosion and demagnetization resistance properties. Ferrite magnet can be made as isotropic and anisotropic.  Isotropic if of the same magnetic properties in all direction, such as Grade-1.  Anisotropic ferrite magnet must be magnetized in the direction of pressing.

By strength, ferrite magnet is stronger than AlNiCo magnet but weaker than neodymium magnet and SmCo (Samarium Cobalt ) magnet . Its working termperature is between from 40 degree to 250 degree. Because of these, ferrite magnet can be found in the application of separator and speaker and motor.

Ferrite Magnet Properties:

>
Grade Br HcB HcJ (BH)max Work Temp
China Standard IEC standard mT kA/m(min.) kA/m(min.) kJ/m(min.) ℃(max.)
Y10T HF 8/22 200-235 125-160 210-280 6,5-9,5 250
Y20 HF 20/19 320-380 135-190 140-195 18,0-22,0 250
Y22H HF 20/28 310-360 220-250 280-320 20,0-24,0 250
Y23 HF 22/30 320-370 170-190 190-230 20,0-25,0 250
Y25 HF 24/16 360-400 135-170 140-200 22,5-28,0 250
Y26H HF 24/23 360-390 220-250 225-255 23,0-28,0 250
Y26H-2 HF 24/35 360-380 263-288 318-350 24,0-28,0 250
Y28 HF 26/16 370-400 175-210 180-220 26,0-30,0 250
Y25H HF 26/18 360-390 175-215 215-230 24,0-27,0 250
Y28H HF 26/24 380-400 240-260 250-280 27,0-30,0 250
Y28H-2 HF 26/26 360-380 270-295 380-405 26,0-30,0 250
Y30 HF 28/16 380-385 190-210 200-220 26,0-28,0 250
Y30BH HF 28/28 380-400 230-275 235-290 27,0-32,0 250
Y30H-2 HF 30/26 395-415 275-300 310-335 28,5-32,5 250
Y32 HF 32/17 400-420 160-190 165-195 30,0-33,5 250
Y33 HF 32/22 410-430 220-250 225-255 31,5-35,0 250
Y33H HF 32/25 410-430 240-270 250-275 31,5-35,0 250
Y35 - 410-430 175-195 180-200 30,0-32,0 250

Related Block Magnet Keywords:

Ceramic Magnet, Ferrite Permanent Magnet

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