Leave Your Message
Alloy 42

Alloy 42

    About Alloy

    Nilo 42/ Alloy 42/UNS K94100 is a nickel-iron controlled-expansion alloy containing 42% nickel. Alloy 42 (Nilo 42) has a low and normally constant coefficient of thermal expansion from room temperature to about 300ºC (570ºF). Alloy 42 (Nilo 42) is used for semiconductor lead frames in integrated circuits, bi-metal thermostat strip, thermostat rods, for ceramic-to-metal seals with alumina ceramics, and various glass-to-metal seals such as the core of copper-clad-wire for sealing into glass envelopes of electric bulbs, radio valves, television tubes and fluorescent lights.

    Product Form

    Wire: ASTM F29 
    Sheet, Strip, Rod, Bar, Tubing, Wire: ASTM F30 
    Sheet and Strip: ASTM B753  
    Wire: AMS 5683

    Chemical Composition

    Iron, Fe 55
    Nickel, Ni 42
    Others Remainder

    Property

    Material Condition Tensile Strength Yield Strength      (0.2% Offset) Elongation (%)
    psi MPa psi MPa
    Alloy 42   (Nilo 42) Annealed 71,000 490 36,000 250 43

    Application

    Alloy 42 is a specific type of alloy known for its low coefficient of thermal expansion (CTE), making it particularly useful in applications where dimensional stability under varying temperatures is critical. Here are some common applications of Alloy 42:

    Electronic Components: Alloy 42 is widely used in electronic and electrical components, especially in the semiconductor industry. Its low CTE helps in maintaining precise dimensions and alignments in integrated circuits (ICs), lead frames, and other semiconductor packaging.
    Telecommunications: In telecommunications, Alloy 42 is used in components like waveguide tubes and antennas. Its thermal stability ensures that these components can withstand temperature changes without affecting performance.
    Automotive Sensors: Alloy 42 is used in sensors and other electronic components in automotive applications. Its stable dimensions and reliability under varying temperatures are crucial for accurate sensor readings and performance.
    Aerospace and Satellite Systems: Alloy 42 finds applications in aerospace and satellite systems where dimensional stability and reliability over a wide temperature range are essential. It can be used in antennas, thermal management systems, and structural components.
    Medical Devices: Alloy 42 is used in certain medical devices where its stability and resistance to temperature variations are advantageous. It may be found in components of medical imaging equipment, surgical instruments, and implants.
    Precision Instruments: Instruments that require high precision and stability, such as optical devices, scientific instruments, and metrology equipment, often utilize Alloy 42 due to its low CTE and thermal stability.
    Thermal Expansion Compensation: Alloy 42 is also used as a material for thermal expansion compensation in various applications where different materials need to be joined without introducing significant stress due to thermal mismatches.

    In summary, Alloy 42's unique properties make it suitable for applications where dimensional stability, reliability under temperature variations, and low thermal expansion characteristics are crucial requirements. Its use spans across industries such as electronics, telecommunications, aerospace, automotive, medical, and precision instruments.

    Your enquiry

    Can't find the information you need? Please contact us directly.

    Leave Your Message