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Kovar 4J29 Precision Nickel Alloy Bar Strip Plate For Hard Glass Sealing Matching

    Buy cheap Kovar 4J29 Precision Nickel Alloy Bar Strip Plate For Hard Glass Sealing Matching from wholesalers
     
    Buy cheap Kovar 4J29 Precision Nickel Alloy Bar Strip Plate For Hard Glass Sealing Matching from wholesalers
    • Buy cheap Kovar 4J29 Precision Nickel Alloy Bar Strip Plate For Hard Glass Sealing Matching from wholesalers
    • Buy cheap Kovar 4J29 Precision Nickel Alloy Bar Strip Plate For Hard Glass Sealing Matching from wholesalers

    Kovar 4J29 Precision Nickel Alloy Bar Strip Plate For Hard Glass Sealing Matching

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    Brand Name : OHMALLOY
    Model Number : Inconel600
    Certification : ISO ROHS
    Price : negotiable
    Payment Terms : , L/C, T/T
    Supply Ability : 20000T/Year
    Delivery Time : 7-20days after your deposit received
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    Kovar 4J29 Precision Nickel Alloy Bar Strip Plate For Hard Glass Sealing Matching

    Kovar 4J29 Precision Nickel Alloy Bar Strip Plate for Hard Glass Sealing Matching


    Kovar alloy is a vacuum melted, iron-nickel-cobalt alloy that is widely used in the electronics industry. Kovar is a nickel-iron-cobalt, controlled-expansion alloy which contains 29% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics.

    Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. This alloy has found wide application in power tubes, microwave tubes, transistors, and diodes. In integrated circuits, it has been used for the flat pack and the dual-in-line package.


    Chemical Composition

    GradeC%P%S%Mn%Si%Cu%Cr%Mo%Ni%Co%Fe%
    KovarMax 0.03Max 0.020Max 0.020Max 0.50Max 0.30Max 0.20Max 0.20Max 0.2028.5-29.516.8-17.8Bal.

    Specifications

    GradeUNSWerkstoff Nr.
    KovarK946101.3981

    Physical Properties

    GradeDensityMelting Point
    Kovar8.17 g/cm31449°C

    Mechanical Properties

    GradeTensile Strength N/mm²
    Soft1/4 Hard1/2 Hard3/4 HardFull Hard
    Kovar Strip<570520-630590-700600-770>700
    Kovar Wire<585585-725655-795725-860>860

    Coefficient of Expansion

    AlloyLinear Coefficient of Thermal Expansion a,10-6/°C
    20-200°C20-300°C20-400°C20-450°C20-500°C20-600°C20-700°C20-800°C
    Kovar5.95.35.15.36.27.89.210.2

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