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Formula: Fe 58/Ni 42
Form: Foil/Film/Sheet
Material: Iron/Nickel
Commodity: Alloys

Iron/Nickel Alloy Foil (Fe58/Ni42)

Iron Nickel Alloy Foil (Fe58/Ni42) provides exceptional dimensional stability, moderate thermal expansion control, and high strength, making it particularly suited for thermal management and high-precision components. With its iron-to-nickel ratio optimized for reduced distortion under heat load, this foil is widely used in electronics, aerospace, and high-vacuum industries. Typical applications include precision masks, controlled-expansion connectors, and housings for sensors or imaging devices where stability is critical. It supports advanced technologies such as OLED displays, flexible microcircuits, and thin-film deposition substrates, benefiting from its fine microstructure and uniform surface. Research efforts employ this composition in developing novel expansion-controlled alloys, investigating metallurgical phase transformations, and studying microelectronic device packaging. The foil format allows for high uniformity, machinability, and reproducibility, reinforcing its role as a dependable material in fields where thermal precision and mechanical resilience are vital for performance.
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Tolerances

Foil
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±25%
Thickness >0.05mm ±10%

Material Properties for Alloys

Mechanical Properties
Element Value
Elongation at break( % ) 30
Modulus of elasticity( GPa ) 21.5
Tensile strength( MPa ) 566
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 68
Temperature coefficient( K⁻¹ ) -
Magnetic Properties
Element Value
Curie temperature( C ) 380
Thermal Properties
Element Value
Melting point( C ) 1450
Specific heat( J K⁻¹ kg⁻¹ ) 502@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 4.8@30-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.11

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