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4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components

Huona (Shanghai) New Material Co., Ltd.
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    Buy cheap 4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components from wholesalers
     
    Buy cheap 4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components from wholesalers
    • Buy cheap 4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components from wholesalers

    4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components

    Ask Lasest Price
    Brand Name : HUONA
    Model Number : WIRE
    Certification : ISO9001 SGS
    Price : negotiation
    Payment Terms : T/T
    Supply Ability : 1000tons/Year
    Delivery Time : 7–15 working days
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    4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components

    Product Overview

    4J45 alloy wire is a controlled thermal expansion Fe-Ni alloy consisting of approximately 45% nickel. It is engineered for applications requiring dimensional stability and hermetic sealing, particularly where thermal compatibility with glass or ceramic is crucial. This material is ideal for use in semiconductor lead frames, sensor housings, and high-reliability electronic packaging.


    Material Composition

    • Nickel (Ni): ~45%

    • Iron (Fe): Balance

    • Trace elements: Mn, Si, C

    CTE (Coefficient of Thermal Expansion, 20–300°C): ~7.5 × 10⁻⁶ /°C
    Density: ~8.2 g/cm³
    Electrical Resistivity: ~0.55 μΩ·m
    Tensile Strength: ≥ 450 MPa
    Magnetic Properties: Weakly magnetic


    Specifications

    • Diameter range: 0.02 mm – 3.0 mm

    • Surface finish: Bright / oxide-free

    • Supply form: Spools, coils, cut lengths

    • Delivery condition: Annealed or cold-drawn

    • Custom dimensions available


    Key Features

    • Moderate thermal expansion matching glass/ceramic

    • Excellent sealing and bonding characteristics

    • Good weldability and corrosion resistance

    • Dimensional stability under thermal cycling

    • Suitable for microelectronics and optical devices


    Applications

    • Hermetic seals for semiconductors

    • Infrared sensor housings

    • Relay casings and electronic modules

    • Glass-to-metal seals in communication components

    • Aerospace-grade packages and connectors


    Packaging & Shipping

    • Vacuum-sealed or plastic spool packaging

    • Custom labeling and bulk options available

    • Delivery: 7–15 working days

    • Shipping methods: Air freight, sea freight, courier


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