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4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15

    Buy cheap 4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15 from wholesalers
     
    Buy cheap 4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15 from wholesalers
    • Buy cheap 4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15 from wholesalers
    • Buy cheap 4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15 from wholesalers
    • Buy cheap 4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15 from wholesalers
    • Buy cheap 4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15 from wholesalers

    4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15

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    Brand Name : JX
    Model Number : Precision Alloy ASTM F15 4J29 Kovar Alloy Round Bar And Rod
    Certification : ISO
    Price : Negotiable
    Payment Terms : L/C, T/T
    Supply Ability : 3000T
    Delivery Time : 35days
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    4J29 Kovar Precision Alloy Round Bar And Rod ASTM F15

    Precision Alloy ASTM F15 4J29 Kovar Alloy Round Bar And Rod
    ASTM F15 4J29(Kovar) , 4J32,4J33,4J34,4J36(Invar) Kovar Bar


    Kovar Alloy Round Bar 4j29 is a iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties.


    Kovar Alloy Round Bar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials.
    Kovar has been used to make hermetic seals with harder Pyrex and ceramic materials. In integrated circuits, it is used in planar packages and dual in-line packages. This alloy has a wide range of applications in power tubes, microwave tubes, transistors and diodes.
    Item
    1J33
    3J01
    3J9
    4J29
    4J32
    4J33
    4J45
    FeNi50
    Invar36
    C
    ≤0.05
    ≤0.05
    0.22-0.26
    ≤0.03
    ≤0.05
    ≤0.03
    ≤0.05
    ≤0.05
    ≤0.1
    Mn
    ≤0.05
    ≤1.00
    1.80-2.20
    ≤0.5
    0.2-0.6
    ≤0.5
    ≤0.8
    ≤0.8
    ≤0.5
    Fe
    Rest
    P
    ≤0.020
    ≤0.020
    ≤0.03
    ≤0.02
    ≤0.02
    ≤0.02
    ≤0.02
    ≤0.02
    ≤0.006
    S
    ≤0.020
    ≤0.020
    ≤0.020
    ≤0.02
    ≤0.02
    ≤0.02
    ≤0.02
    ≤0.02
    ≤0.04
    Si
    0.30-0.6
    ≤0.80
    1.30-1.70
    ≤0.3
    ≤0.2
    ≤0.3
    ≤0.3
    ≤0.3
    ≤0.35
    Ni
    32.8-33.8
    34.5-36.5
    9.0-10.5
    28.5-29.5
    31.5-33
    28.5-29.5
    44.5-45.5
    49.5-50.5
    35-38
    Al
    1.0-2.0
    1.00-1.80
    --
    --
    --
    --
    ≤0.1
    ≤0.1
    --
    Co
    --
    --
    --
    16.8-17.8
    3.2-4.2
    16.8-17.8
    -
    -
    -
    Ti
    -
    2.70-3.20
    -
    -
    -
    -
    -
    -
    -
    Cu
    -
    --
    --
    --
    ≤0.2
    0.4-0.8
    ≤0.2
    --
    --
    Cr
    --
    11.5-13.0
    19.0-20.5
    ≤0.2
    --
    ≤0.2
    --
    --
    --
    Mo
    --
    --
    1.60-1.85
    ≤0.2
    --
    ≤0.2
    --
    --
    --

    Kovar Alloy Round Bar Picture:
    4J29 Kovar Precision Alloy Round Bar And Rod ASTM F154J29 Kovar Precision Alloy Round Bar And Rod ASTM F15

    Thermal conductivity

    θ/ºC100200300400500
    λ/ W/(m*ºC)20.621.522.723.725.4
    The heat treatment process
    Annealing for stress reliefHeated to 470~540ºC and hold 1~2 h. Cold down
    annealingIn vacuum heated to 750~900ºC
    Holding time14 min~1h.
    Cooling rateNo more than 10 ºC/min cooled to 200 ºC

    FAQ

    1. What's the minimum quantity customer can order?
    If we have your size in stock, we can provide any quantity you want.
    If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.

    2. How can you pay for small sample amount?
    We have Western union account, wire transfer for sample amount also ok.

    3. Customer do not have express account. How will us arrange the delivery for sample order?
    Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.


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