Incoloy® 800 Foil (Light Tight)

Incoloy® 800 Foil (Light Tight) combines the high-temperature strength and oxidation resistance of Incoloy 800 with a unique light-tight configuration, ensuring complete opacity and the absence of pinholes. This makes it suitable not only for thermal and corrosion-intensive environments but also for applications requiring absolute light shielding. The material is widely used in the chemical processing, petrochemical, and energy industries, where both mechanical integrity and optical isolation are critical. Specific uses include heat exchanger components requiring strict light barriers, protective layers in sensitive instrumentation, and specialized furnace linings where optical interference could impair performance. Research and development also leverage this foil in experimental reactors and high-precision optical-thermal setups, supporting advancements in material science and thermal system design. Its dual functionality—providing structural durability under heat while ensuring light-tight reliability—positions it as a key enabler in advanced scientific and industrial contexts.

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Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

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Material Properties for Alloys

Mechanical Properties

Element	Value
Hardness - Brinell	180-250
Elongation at break( % )	<45
Modulus of elasticity( GPa )	196
Izod impact strength( J m⁻¹ )	160
Tensile strength( MPa )	400-900

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	20
Temperature coefficient( K⁻¹ )	-

Thermal Properties

Element	Value
Melting point( C )	1350-1420
Specific heat( J K⁻¹ kg⁻¹ )	460@23°C
Thermal conductivity( W m⁻¹ K⁻¹ )	11.5-12.9@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	14.2-15.8@20-100°C