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Aluminum/Magnesium Alloy Foil (Light Tight) (Al95/Mg 5)

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Properties common to all products in this list

Commodity: Alloys Material: Aluminum/Magnesium Form: Foil (Light Tight) Composition: Al 95/Mg 5 Temper: As Rolled Thickness: 0.03mm Opacity: Light Tight
Aluminum/Magnesium Alloy Foil (Light Tight) (Al95/Mg5) is a high-performance thin metal film engineered to provide exceptional strength, corrosion resistance, and complete opacity to external light. With 5% magnesium, it offers superior tensile strength, enhanced fatigue resistance, and excellent durability in marine and chemically aggressive environments, while maintaining the lightweight advantage of aluminum. The light-tight property ensures full blockage of light transmission, making it ideal for optical, electronic, and photonic applications that demand strict light isolation. Common uses include protective layers for electrochemical cells, light-sensitive sensor enclosures, and aerospace-grade thermal shielding. Key technologies benefiting from this foil include high-capacity lithium-ion battery packaging, precision photonic devices, and advanced satellite imaging systems. Research focuses on refining Mg distribution to improve corrosion resistance, surface smoothness, and long-term thermal stability under cyclic conditions. Aluminum/Magnesium Alloy Foil (Light Tight) (Al95/Mg5) remains critical where mechanical robustness must be paired with optical isolation in extreme environments.
Starting at $449.00 each
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Material Properties

Mechanical Properties
Element Value
Hardness - Brinell 60-120
Elongation at break( % ) 20
Shear strength( MPa ) 150-230
Tensile strength( MPa ) 300-450
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 5.6-6.1
Temperature coefficient( K⁻¹ ) 0.002
Physical Properties
Element Value
Density( gcm⁻³ ) 2.65
Thermal Properties
Element Value
Thermal conductivity( W m⁻¹ K⁻¹ ) 125-130@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 23-23.5@20-100°C
each

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Available Configurations

Properties common to all products in this list

Commodity: Alloys Material: Aluminum/Magnesium Form: Foil (Light Tight) Composition: Al 95/Mg 5 Temper: As Rolled Thickness: 0.03mm Opacity: Light Tight

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Tolerances

Foil (Light Tight)
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%
Linear dimension <100mm ±1mm
Linear dimension >=100mm +2 / -1%