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    Toroidal Core

    Toroidal Core

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    • Height30 mm+0.2 /- 0.0 mm
    • Inner Diameter110 mm+/-1mm
    • Outer Diameter160 mm+/-2mm
    • Supply TypeManufacturer, Exporter, Supplier, Retailer
    • Preferred Buyer Location All over the world

    Key: Practical saturation measured for H = 800 A/m. Remanent induction Br and coercive field Hc measured from H = 80 A/m. Practical saturation Bs and Remanent induction Br measured for H = 800....
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    Company Information

    Permanent Magnets Limited
    location MIDC, Mumbai, Maharashtra
    View Number
    • calendar Member Since 9 Years
    • building Nature of Business Retailer

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    Key:

    1. Practical saturation measured for H = 800 A/m.
    2. Remanent induction Br and coercive field Hc measured from H = 80 A/m.
    3. Practical saturation Bs and Remanent induction Br measured for H = 800 A/m.
    4. Measured for H = 4 mA/cm (peak value).
    5. Sinusoidal excitation field H = 4 mA/cm (peak value).
    6. Impedance permeability for B = 0.8 T.
    7. Measurements made on 35X26X0.34 mm ring specimens after annealing in Pure
      & Dry Hydrogen for 4h at 1170°C followed by cooling at 200°C/h.
    8. Practical saturation measured for H=5000A/m.
    9. Core loss W/kg at 1.5T at 50Hz=3.90 max.
    10. Typical operating frequency - 50 hz to 400hz


    Magnetic & Chemical Properties
    PropertiesMeasurementUnit80% NiFe7Mumetal7
    PermeabilityPermeability AC  
    BsTesla0.7510.761
    BrTesla0.420.52
    Hc 2(A.m)-1Tesla0.350.6
    µ4 4Tesla550000120000
    µ maxTesla570000350000
    Permeability AC   
    µ4z5 7000050000
    µz86 --
    µmax 9500095000
    Core loss(W/Kg-1)0.0150.015
    Chemical Composition% Ni-78%-81%78%-81%
    % Mo-4.5%-6%4.5%-6%
    % Si-0.05%-0.4%0.05%-0.4%
    % Mn-0%-0.5%0%-0.5%
    % C-0.01%0.01%
    % Fe-BalanceBalance
    Physical 
    Properties    		Density(g.cm -3)8.78.7
    Specific Heat(J.Kg-1.ËšC-1)460460
    Thermal conductivityW.m-1.ËšC-11919
    Mean CTE between -50 & +200ËšCËšC-112.10-612.10-6
    Electrical resistivityµâ„¦.cm6060
    Curie Pointáµ’C420420
    Coefficient of magnetostriction at Saturation ∆l / l-1-3 x 10-61-3 x 10-6
    Melting temperatureáµ’C14501450
    Saturation InductionTesla--
    HardnessHv325325
    In Cold worked
    condition    		UTSMPa10501050
    0.2% PS(Cold Worked)MPa10301030
    Elongation%min 3min 3
    In Annealed
    condition    		HardnessHv160160
    UTSMPa650650
    0.2% PSMPa280280
    Elongation%3535
    Grain Size-88

     

    Dimensions and tolerances:
    Nominal Value (mm)Tolerance for inner 
    diameter(mm)    		Tolerance for outer 
    diameter(mm)
    ≤60+/-0.5+/-1
    ≤80+/-0.75+/-1.25
    ≤100+/-1+/-1.5
    ≤200+/-1.5+/-2
    ≤320+/-2+/-2.5

     






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