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Factory Wire Testing

Factory Video
June 24, 2025
Category Connection: Low Expansion Alloy
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Tags:
#Feni52 Wire #Alloy 42 Invar Strip #Kovar Rod
Brief: Discover the High Precision 4J32 Alloy Wire, a low expansion Fe-Ni wire designed for vacuum and sensor applications. This alloy ensures reliable hermetic sealing in electronic devices, sensors, and military-grade packages with its excellent compatibility with hard glass and borosilicate glass.
Related Product Features:
  • Precision nickel-iron alloy with a low coefficient of thermal expansion (~5.5 × 10⁻⁶ /°C).
  • Excellent compatibility with hard glass and borosilicate glass for hermetic sealing.
  • High purity and clean surface for vacuum compatibility.
  • Available in diameters from 0.02 mm to 3.0 mm, in coils or cut-to-length.
  • Stable low thermal expansion performance for reliable applications.
  • Easy to weld, shape, and seal under various processes.
  • Customizable size and packaging options for diverse needs.
  • Ideal for glass-to-metal sealing in aerospace, defense, and medical devices.
Faqs:
  • What is the thermal expansion coefficient of 4J32 alloy wire?
    The thermal expansion coefficient of 4J32 alloy wire is approximately 5.5 × 10⁻⁶ /°C, making it ideal for applications requiring stable performance.
  • What are the primary applications of 4J32 alloy wire?
    4J32 alloy wire is used in glass-to-metal sealed relays, vacuum tubes, aerospace and defense electronic packages, sensor components, and medical devices.
  • What sizes are available for 4J32 alloy wire?
    4J32 alloy wire is available in diameters ranging from 0.02 mm to 3.0 mm, supplied in coils, spools, or cut-to-length as required.
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