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High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor Applications

Huona (Shanghai) New Material Co., Ltd.
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    Buy cheap High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor Applications from wholesalers
     
    Buy cheap High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor Applications from wholesalers
    • Buy cheap High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor Applications from wholesalers

    High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor Applications

    Ask Lasest Price
    Brand Name : HUONA
    Model Number : wire
    Certification : ISO9001 SGS
    Price : negotiable
    Payment Terms : T/T
    Supply Ability : 100,000 pieces / week
    Delivery Time : a week
    • Product Details
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    High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor Applications

    Product Overview

    4J32 alloy wire is a precision nickel-iron alloy with a low and controlled coefficient of thermal expansion, specifically designed for glass-to-metal sealing applications. With approximately 32% nickel, this alloy provides excellent compatibility with hard glass and borosilicate glass, ensuring reliable hermetic sealing in electronic vacuum devices, sensors, and military-grade packages.


    Material Composition

    • Nickel (Ni): ~32%

    • Iron (Fe): Balance

    • Minor elements: Manganese, Silicon, Carbon, etc.

    Thermal Expansion (30–300°C): ~5.5 × 10⁻⁶ /°C
    Density: ~8.2 g/cm³
    Tensile Strength: ≥ 450 MPa
    Resistivity: ~0.45 μΩ·m
    Magnetic Properties: Soft magnetic behavior with stable performance


    Available Sizes & Supply

    • Diameter: 0.02 mm – 3.0 mm

    • Length: in coils, spools, or cut-to-length as required

    • Condition: Annealed or cold drawn

    • Surface: Bright, oxide-free, smooth finish

    • Packaging: Vacuum-sealed bags, anti-rust foil, plastic spools


    Key Features

    • Excellent match with glass for hermetic sealing

    • Stable low thermal expansion performance

    • High purity and clean surface for vacuum compatibility

    • Easy to weld, shape, and seal under various processes

    • Customizable size and packaging options for different applications


    Applications

    • Glass-to-metal sealed relays and vacuum tubes

    • Sealed electronic packages for aerospace and defense

    • Sensor components and IR detector housings

    • Semiconductor and optoelectronic packaging

    • Medical devices and high-reliability modules



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    Quality High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor Applications for sale
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