Invar® Foil

Invar® Foils are part of Goodfellow’s wide range of metal foils. Invar® alloy contains nickel and iron, giving it low thermal expansion properties. Invar® Foils are used in applications that require dimensional stability like precision instruments, optical assemblies and aircraft components. With 163 variations available, the ability to tailor the thermal expansion properties of these foils makes them an ideal choice for reducing thermal stresses and strains in sensitive devices and assemblies.

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