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Hard Ferrite

Country/Region china
Company Xiamen Jingxin Magnet Company Ltd.
Categories Ferrite Magnets
Telephone 0086-592-5802700
ICP License Issued by the Chinese Ministry
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    Hard Ferrite

    The elements of Ferrite magnets are ferric oxide, barium oxide and strontium oxide, etc. Ferrite magnets have higher coercive force, higher resistance to be demagnetized and higher corrosion resistance than other non-rare earth permanent magnets. The operating temperature range is from -40°C to +250 °C. The biggest advantages of such magnets are their low price.
    Ferrite magnets are widely used in motors, speakers, microwave devices, electronics, machines, instruments, meters, toys and crafts, etc.

    Physical property of sintered hard ferrite

    Parameters

    Mark

    Unit

    Value

    Note

    Relative Recoil Permeability

    rec

    rec

    1.05~1.3

    Curie temperature

    Tc

    °C

    460

    The coefficient of Br to temperature

    Br

    °C-1

    -0.20%

    0~100°C

    The coefficient of Hcj to temperature

    HCJ

    °C-1

    0.2%~0.5%

    0~100°C

    Density

    D

    g/cm3

    4.8~5.0

    The coefficient of linear expansion

    R

    °C-1

    7~1510-6

    Hardness

    HV

    HV

    480~580

    Permanent ferrite magnet industry standard of USA

    Grade

    Br
    (mT)

    Hcb
    (KA/m)

    Hcj
    (KA/m)

    (BH)max
    (KJ/m3)

    D
    (g/cm3)

    C1

    230

    148

    258

    8.36

    4.8

    C5

    380

    191

    199

    27

    4.8

    C7

    370±10

    270±8

    318±8

    Quality Hard Ferrite for sale
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