Dispositivos médicos Tubos de liga de níquel-cromo 15,9 W/M·K Inconel 600 Tubo sem costura

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May 28, 2025
Category Connection: Kovar Alloy
Brief: Discover the 4J29 Kovar Strip, a nickel iron cobalt alloy with a low coefficient of thermal expansion, perfect for electronic packaging, aerospace, and precision instruments. Its thermal expansion matches borosilicate glass and alumina ceramics, making it ideal for glass-to-metal sealing applications.
Related Product Features:
  • Low thermal expansion coefficient (4.6 × 10⁻⁶/℃ from 20℃ to 450℃) ensures dimensional stability.
  • High permeability and reduced hysteresis loss after heat treatment for precise electronic applications.
  • Excellent mechanical properties: 345 MPa yield strength, 517 MPa tensile strength, and 30% elongation.
  • Good electrical performance with resistivity of 0.48 μΩ·m, suitable for high-frequency applications.
  • Versatile forms of supply including rod, strip, wire, and sheet for various industrial needs.
  • Widely used in electronic packaging, vacuum electronic devices, and optical instruments.
  • Superior machinability and formability, compatible with turning, milling, and drilling processes.
  • High corrosion resistance and temperature performance for long-term reliability in harsh environments.
Perguntas Frequentes:
  • What is Kovar 4J29 alloy used for?
    Kovar 4J29 is widely used in electronic packaging, aerospace, and precision instruments due to its low thermal expansion coefficient, which matches borosilicate glass and alumina ceramics, making it ideal for glass-to-metal sealing applications.
  • What are the key properties of Kovar 4J29?
    Kovar 4J29 features a low thermal expansion coefficient (4.6 × 10⁻⁶/℃), high permeability, excellent mechanical properties (345 MPa yield strength, 517 MPa tensile strength), and good electrical performance (0.48 μΩ·m resistivity).
  • How is Kovar 4J29 processed?
    Kovar 4J29 can be melted and cast using electric arc or induction furnaces, heat-treated for improved ductility, and machined via turning, milling, or drilling. It is also weldable using high-energy methods like laser or electron beam welding.