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Expansion Alloys HOME >> Expansion Alloys
PRODUCTS:Alloy42 & 48 & 52
GRADE:4J42、4J45、4J50、4J52
PRODUCTION STANDARD:YB/T5235-2005
Views:1268
  • PRODUCTS DETAILS
  • SPECIFICATION

    Introduction



    Alloy 42, a low expansion alloy, is very similar to Invar 36 with a slightly different Coefficient of Thermal Expansion. This nickel-iron alloy is ideal for lid, lead frames, stencil/etching, telecommunications and aircraft industry, offering a more affordable alternative to Kovar when a tight seal is not required.

    Alloy 42 has a virtually constant low rate of thermal expansion at temperatures up to approximately 650°F (343°C). Easily machined and formed hot or cold, 42 Alloy is also used extensively in the medical, electronics and automotive industries.


    Alloy 52 is used as Glass to metal seals for electronic tubes, automotive and industriallamps,and specialty hermetic devices.It’s commonly used in the telecommunications industry in a variety of electronic applications. Alloy 52 is made 52 percent of nickel and 48 percent of iron. It’s more durable than nickel by itself. Produced with good machining properties, it’s manufactured in a controlled environment under controlled conditions.






    *Alloy 42,ASTM F30, UNS k94100,(Fe-42Ni)Chinese 4J42

    *Alloy 52,ASTM F30,UNS K95050, (Fe-50Ni),Chinese 4J50

    *sealmet HC-4, alloy42-6, ASTM F31, UNS k94760, (Fe-42Ni-6Cr),Chinese 4J6

    Contrast

    Grade

    Relative Grade

    Russia

    U.S.A.

    U.K.

    Japan

    France

    Germany

    4J6

    Н42 X 6

    42Ni-6Cr

    Carpenter42-6

    Sylvania4

    Sealmet 4

    -

    NRS-1

    YEF-426

    SNC

    ASV(426)

    Ni42Cr6

    Vacovit426

    (NiCr426)

    4J47

    47НХ

    -

    -

    -

    461

    -

    4J49

    49НХР

    Carpenter 456

    -

    -

    FeNi46Cr5

    Vacovit 465

    Vacovit 485

    4J42

    42Н

    Glass Sealing 42

    Uniseal 42

    Nilo42

    YEF42

    NSD

    N42

    Vacodil 42

    Nilo42

    4J45

    46Н

    Niromet 46

    Ferrovac 46 Ni

    Nilo45

     

    Fe-Ni42

    Vacodil 46

    4J50

    50Н

    FeNi50

    Nilo51

    NS-1

    N50

    Vacovit 500

    4J52

    52Н

    50Н-ВИ

    Glass Sealing 52

    Niloy 52

    -

    N52

    N52

    Vacovit 520

    FeNi52

    4J54

    -

    -

    -

    -

    N54

    Vacovit 540

    FeNi54

    Grade & Chemical Composition (see Table 1)

    Table 1 Grade & Chemical Composition

    Grade

    Grade & Chemical Composition(%)

    C

    P

    S

    Mn

    Si

    B

    Al

    Co

    Ni

    Cr

    Fe

    4J6

    0.05

    0.020

    0.020

    0.25

    0.30

     

    0.20

     

    41.542.5

    5.506.30

    Bal

    4J47

    0.05

    0.020

    0.020

    0.40

    0.30

     

     

     

    46.847.8

    0.801.40

    Bal

    4J49

    0.05

    0.020

    0.020

    0.40

    0.30

    0.02

     

     

    46.048.0

    5.006.00

    Bal

    4J42

    0.05

    0.020

    0.020

    0.80

    0.30

     

    0.10

    1.0

    41.542.5

     

    Bal

    4J45

    0.05

    0.020

    0.020

    0.80

    0.30

     

    0.10

     

    44.545.5

     

    Bal

    4J50

    0.05

    0.020

    0.020

    0.80

    0.30

     

    0.10

     

    49.050.5

     

    Bal

    4J52

    0.05

    0.020

    0.020

    0.60

    0.30

     

    -

     

    51.552.5

     

    Bal

    4J54

    0.05

    0.020

    0.020

    0.60

    0.30

     

    -

    -

    53.554.5

     

    Bal

    Notes:

        1Under condition that the average coefficient of the linear expansion meets the requirements of the standard, the content of nickel and cobalt are allowed to deviate from the stated range.

            2The shape and dimensions of the alloys are in compliance with YB/T5235.

    Mechanical Property (see Table 2 & Table 3)

    Table 2 Tensile Strength of Alloy Strips

    Code

    Status

    Tensile Strengthδb/MPa

    R

    Annealed

    <590

    L

    Unannealed

    >820

    Table 3 Hardness of Deep-drawn Strips

    Deep-Stamping

    Thickness/mm

    Hardness/HV

    Fe-Ni-Cr

    ≤190

    Fe-Ni

    >2.5

    ≤190

    ≤2.5

    ≤165

    Physical Property (See Table 4 & Table 5)

    Table 4 Heat Treatment & Coefficient of Linear Expansion

    Grade

    Heat Treatment System of the Samples

    Average Coefficient of Linear Expansion

    20-300°C

    20400°C

    20-450°C

    4J6

    To be heat treated at a temperature of  1130±20 in the hydrogen, hold for 15 min., cool to200 at a rate less than 5/min

    7.68.3

    9.510.2

     

    4J47

     

    8.18.7

     

    4J49

    8.69.3

    9.4l0.1

     

    4J42

    To be heat treated at a temperature of  900±20 in the hydrogen, hold for 1h, cool at a rate less than 5/min to200

    4.05.0

     

    6.57.5

    4J45

    6.57.2

    6.57.2

     

    4J50

    9.210.0

    9.29.9

     

    4J52

    To be heat treated at a temperature of  850±20 in the hydrogen, hold for 1h, cool at a rate less than 300/H to 400

    9.811.0

    9.811.0

     

    4J54

    10.211.4

    10.211.4

     

    Table 5 Typical Expansion Coefficient

    Grade

    Average Coefficient of Linear Expansion  ā/(10-6/K)

    20100

    20200

    20300

    20400

    20450

    20500

    20600

    4J6

    6.8

    7.0

    7.7

    9.7

     

    11.1

    12.2

    4J47

    8.1

    8.6

    8.3

    8.3

     

    9.1

    10.0

    4J49

    9.0

    9.0

    8.9

    9.6

     

    10.9

    11.8

    4J42

    5.6

    4.9

    4.8

    5.9

    6.9

    7.8

    9.2

    4J45

    7.5

    7.5

    7.1

    7.2

    7.1

    8.3

    9.5

    4J50

    9.8

    9.8

    9.5

    9.4

     

    9.7

    10.6

    4J52

    10.3

    10.4

    10.2

    10.3

    10.3

    10.3

    10.8

    4J54

    10.7

    12.7

    10.7

    10.8

    10.3

    10.8

    11.2

    NOTE: The data in the table are for reference only.








    Specification:
    Sheet/Plate, Bar/Rod/Wire/Coil,Capillary/Pipe/Tube

    Size Range:
    *Sheet---thickness 0.05mm~3.5mm, width:≤350mm,Condition: cold rolled, bright, bright annealed
    *Plate---thickness3.5mm~40.0mm,width:≤300mm,Condition: cold rolled, hot rolled, annealed
    *Round Wire---Dia0.1mm~Dia5.0mm,Condition: cold drawn, bright, bright annealed
    *Flat Wire---Dia0.5mm~Dia5.0mm,length:≤1000mm,Condition:flat rolled, bright annealed
    *Bar---Dia5.0mm~Dia8.0mm,length:≤2000mm,Condition:cold drawn,bright, bright annealed
           Dia8.0mm~Dia32.0mm,length:≤2500mm,Condition:hot rolled,bright, bright annealed
           Dia32.0mm~Dia180.0mm,length:≤1300mm,Condition:hot forging,peeled, turned, hot treated
    Capillary---OD8.0mm~1.0mm,ID0.1mm~8.0mm,length:≤2500mm,Condition: cold drawn, bright, bright annealed
    Pipe---OD120mm~8.0mm,ID8.0mm~129mm,length:≤4000mm,Condition: cold drawn, bright, bright annealed

    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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