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Soft Magnetic Alloys HOME >> Soft Magnetic Alloys
PRODUCTS:Permendur 2V / Hiperco50
GRADE:1J21 、1J22
PRODUCTION STANDARD:GB/T14986-2008
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  • PRODUCTS DETAILS
  • SPECIFICATION

    High Saturation magnetic induction soft magnetic alloys 1J22GB/T14986-2008

     

    Introduction

    Hiperco50 alloy is a soft magnetic alloy which has been used primarily as magnetic core material in electrical core material in electrical equipment requiring high permeability values at very high magnetic flux densities. The magnetic characteristics of this alloy permit weight reduction, reduction of copper turns, and insulation in the end product when compared to other magnetic alloys having lower permeabilities in the same magnetic field range.



    Permendur is a cobalt-iron soft magnetic alloy with equal parts of cobalt and iron . The alloy was invented in the United States around 1920 . Standard permendur compositions coined Fe-Co 50/50 or 50Fe-50Co may contain carbon up to 1% while a composition patented in 1932 named Vanadium Permendur, Permendur 2V. 50Fe-50Co and 49Fe-49Co-2V alloys all have high permeability with little loss and highest flux densities at saturation point (saturation induction is around 23000-24000 Gauss) available amongst commercial soft magnetic alloys. Its magnetic transition temperature is 980 °С . Its name in Russian is пермендюр (49К2ФА).



    Relative Grade

    Grade

    U.K.

    U.S.A.

    Russia

    Standard

    1J22

    Permendur

    Supermendur

    HiperCo50

    50КФ

    GB/T14986-2008

     

     

    Grade and Chemical Composition (see Table 1)

    Table 1 Grade and Chemical Composition

    Grade

    Chemical Composition (%)

    C≤

    Mn≤

    Si≤

    P≤

    S≤

    Cu≤

    Ni≤

    Co

    V

    Fe

    lJ22

    0.04

    0.30

    0.30

    0.020

    0.020

    0.20

    0.50

    49.051.0

    0.801.80

    Balance

      Physical Property (see Table2 & Table3)

    Table2  Physical Property

    Grade

    Resistivity /(μΩ·m)

    Density

    /(g/cm3)

    Curie point

    /°C

    Magnetostriction Cofficient/(×l0-6)

    Tensile Strength

    /MPa

    Unannealed

    Annealed

    1J22

    0.40

    8.20

    980

    60100

    1325

    490

    Table 3 Magnetic Property

    Grade

    Forms

    Magnetic Flux Density At Different Magnetic Field Strength

    Coercivity /Hc/(A/m)≤

    B400

    B800

    B1600

    B2400

    B4000

    B8000

    T

    1J22

    Cold Rolled strips

    1.70

    1.90

    2.00

    2.10

    2.20

    2.25

    110

    Wires, Rods,Forgings,Billets

    1.60

    1.70

    1.80

    2.05

    2.15

    2.20

    144

    Description
    Hiperco 50A alloy is a soft magnetic alloy which has been used primarily as magnetic core material in electrical core material in electrical equipment requiring high permeability values at very high magnetic flux densities.The magnetic characteristics of this alloy permit weight reduction, reduction of copper turns, and insulation in the end product when compared to other magnetic alloys having lower permeabilities in the same magnetic field range.

    Physical Properties

    Specific gravity.........................................8.20
    Density
    lb/cu in ................................................... 0.295
    kg/cu m ................................................... 8200
    Electrical resistivity
    ohms c/mf ................................................ 253
    microhm-mm ........................................... 420

    Mean Coefficient of Thermal Expansion

    Temperature

    Coefficient

    68°F to

    20°C to

    10(-6)/°F

    10(-6)/°C

    392
    752
    1112
    1472

    200
    400
    600
    800

    5.28
    5.61
    5.83
    6.28

    9.5
    10.1
    10.5
    11.3

    Curie Temperature
    °F ........................................................... 1710
    °C ............................................................ 932
    Saturation induction at
    H = 250 oersteds(kilogausses) .................. 23
    H = 19.9 at/m(Telsa) ................................ 2.3
    Saturation magnetostriction
    change in unit length x 10(-6) .................. 60

    Workability

    Machinability
    The following charts include typical machining parameters used to machine Hiperco 50A alloy. The data listed should be used as a guide for initial machine setup only.

    High Speed Tools

    Turning-
    Single Point
    And Box Tools

    High Speed Tools

    SFPM
    IPR

    25-30
    .003-.010

    Carbide Tools

    SFPM
    IPR

    70-90
    .020-.007

    Turning
    And
    Forming

    Tool Width

    Cut-Off
    Tool
    Width

    1/16"

    SFPM
    IPR

    25
    .001

    1/8"

    SFPM
    IPR

    25
    .002

    1/4"

    SFPM
    IPR

    25
    .003

    Form
    Tool
    Width

    1/2"

    SFPM
    IPR

    25
    .004

    1"

    SFPM
    IPR

    25
    .0025

    1-1/2"

    SFPM
    IPR

    25
    .002

    Drilling

    Drill
    Dia.

    3/8"

    SFPM
    IPR

    30
    .005

    3/4"

    SFPM
    IPR

    30
    .010

    Reaming

    Under 1/2"

    SFPM
    IPR

    65
    .005

    Over 1/2"

    SFPM
    IPR

    65
    .010

    Die Threading

    T.P.I

    3-7

    SFPM

    8

    8-15

    SFPM

    10

    Over 16

    SFPM

    15

    Tapping

    T.P.I

    3-7

    SFPM

    6

    8-15

    SFPM

    7

    16-24

    SFPM

    11

    Over 25

    SFPM

    15

    Milling

    SFPM
    IPR

    20-35
    .001-.005

    Broaching

    SFPM

    8-15

    Chip Load

    IPT

    .002

         When using carbide tools, surface speed feet/minute (SFPM) can be increased between 2 and 3 times over the high speed suggestions. Feeds can be increased between 50 and 100%.

         Figures used for all metal removal operations covered are average. On certain work, the nature of the part may require adjustment of speeds and feeds. Each job has to be developed for best production results with optimum tool life. Speeds or feeds should be increased or decreased in small steps.


    Heat Treatment

    When selecting a heat treating temperature for the application, two factors should be considered:

         1. For best magnetic soft characteristics, select the highest suggested temperature.

         2. If the application requires specific mechanical properties higher than that produced when employing the highest temperature, select the temperature that will provide desired mechanical properties.

    As temperature decreases, magnetic properties become less magnetic soft. Heat treating temperature for best soft magnetic properties should be 1625°F +/- 25°F (885°C +/- 15°C).Do not exceed 1652°F(900°C).

    The heat treating atmosphere used must be nonoxiding and noncarburizing. Atmospheres such as dry hydrogen or high vacuum are suggested. Time at temperature should be two to four hours. Cool at a rate of nominally 180 to 360°F (100 to 200°C) per hour to a temperature of least 700°F(370°C), then cool naturally to room temperature


    Typical Mechanical Properties

    Effect of Heat Treating Temperature on Hardness - Hiperco 50A alloy

    Temperature

    Hardness Rockwell B

    °F

    °C

    1558
    1598
    1625
    1692

    843
    870
    885
    925

    94
    89
    97
    92(poor magnetic properties)

     

    Specification:
    Sheet/Plate, Bar/Rod/Coil

    Size Range:
    *Sheet---thickness 0.10mm~0.50mm, width:10.0~210.0mm,Condition: cold rolled, bright
    *Plate---thickness 3.5mm~40.0mm,width:≤300mm,Condition: cold rolled, hot rolled
    *Bar---Dia 8.0mm~Dia 32.0mm,length:≤2000mm,Condition:hot rolled,burnished
           Dia 32.0mm~Dia 150.0mm,length:≤1000mm,Condition:hot forging,peeled, turned

     

    Note: we could do any other products with specified technical standard, say, ASTM,SAE,DIN,S.E.W.,JIS,ISO,IEC,NF,BS,ΓОСТ.PLS contact us for more information: Tel: +86-29-89396652 or e-mail us at: Sales@xaleipeng.com

     


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