PERMALLOY ALLOY

坡莫合金指铁镍合金,其含镍量的范围很广,在35%-90%之间。坡莫合金的最大特点是具有很高的弱磁场导磁率。它们的饱和磁感应强度一般在0.6--1.0T之间。
收藏
  • Chemcial composition

    Alloy

    %

    Ni

    Mo

    Cu

    C

    Si

    Mn

    P

    S

    1J79

    Min.

    78.5

    3.8

       

    0.3

    0.6

       

    Max.

    80

    4.1

    0.2

    0.03

    0.5

    1.1

    0.02

    0.02

    1J79 Phycial propertities:

    Denity

    8.6 g/cm³

    Melting Point

    450°C

    1J79 minimum mechanical properties in the room temperature

    Alloy

    Shape

    Propertities

    μO(mH/m)

    μm (mH/m)

    Hc (A/m)

       Bs(T)

    1J79

    Cold Rolled strip

    ≥31

    ≥250

    ≤1.2

    0.75

    Bar, wire, plate

    ≥25

    ≥125

    ≤2.4

    0.75

     

    Specifications

    permalloy, permalloy 80, 
    Permalloy is a kind of soft magnetic alloy,normally refers to 20% iron and 80% nickle content.

    PERMALLOY ALLOY

    Note:

    Permalloy is also known as 1J79,1J85 in China(Chinese Standard).

    Permalloy has a high magnetic permeability,loe coercivity,near zero magnetostriction,and significant anisotropic magnetoresistance.The low magnetostriction is critical for industrial applications,where variable stresses in thin films would otherwise cause a ruinously large variation in magnetic properties.Permalloy's electrical resistivity generally varies within the range 5% depending on the strength and the direction of an applied magnetic field.Permalloys typically have the face centered cubic crystal structure with a lattice constant of approximately 0.355nm in the vicinity of a nickel concentration of 80%.

    Permalloy alloy physical properties available:Permalloy wire,also in bar,plate,sheet ,foil,etc.

     

    Applications:

    1.EI core,magnetic head core,magnetic shield case,head case,cassette tape magnetic shield plate,parts of watch,transducer,etc.

    2.Permalloy is used in transformer laminations and magnetic recording head sensors,in its initial application,permalloy was wrapped around the insulated copper conductors of telecommunication cables,reducing signal distortion through improved inductive compensation of cable capacitive reactance.

    3.It is widely used for fabricating the thin pieces that are laminated to form trasformer cores.

    Classification

    Alloy Main chemical compositions (expect Fe) Application Magnetic hysteresis loop
    high permeability and low coercive iorce in a weak magnetic field 1J79; 1J80; 1J85; 1J851; 1J86 75%-83%Ni Cu and Mo etc zero phase current mutual inductor. Power transducer precision current mutual inductor. Magnetic amplifier.switching made power supplier.magnetic shielding common magnetic hysteresis loop
    high permeability and high saturation magnetic induction 1J55;1J50;1J50cd;1J46 45%-55% Ni power transformer. Reactor pulse transformer  
    high squareness ratio:higher saturation magnetic induction and maximum permeability 1J34 33%-41% Ni;        25%-30% Co 2%-45 Mo            double polarity pulse transformer.direct current voltage transducer magnetic amplifier.magnetic modulator and pinnacle suppresser square shape magnetic hysteresis loop
    1J40
    1J51 45%-67% Ni  1%-2% Mo
    1J52
    1J67
    1J86 same as 1J86
    relatively constant permeability within a certain range of magnetic field temperature and irequency 1J34h 30%-35% Ni;        25%-60% Co Mo  Nb etc          constant inductor.uni-polarity pulse transformer flat magnetic hysteresis loop
    1J34kh
    1J50h same as 1J50
    1J522
     
    1J66 64%-67% Ni Mo Mn
    1J67
    1J6721
    1J79h same as 1J79

     

     

     

Copper Contact
Nickel Contact
Titanium Contact
Nickel products
Copper products
Titanium products
PRODUCTS    NICKEL & NICKEL ALLOYS    PRECISION ALLOY    Soft magnetic alloy    PERMALLOY ALLOY