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AZ31 Magnesium Foil (Light Tight)

Formula: Mg 96/Al 3/Zn 1
Form: Foil (Light Tight)
Material: Magnesium AZ31
Commodity: Alloys
Light Tight: Light Tight
AZ31 foil from Goodfellow is an aluminum alloy foil product designed for light blocking applications. With a magnesium content of 3%, AZ31 foil combines moderate strength with excellent corrosion resistance while remaining highly reflective across visible and infrared wavelengths. The material's opacity to light makes it useful for radiation shielding in optical devices. AZ31's ductility also allows it to be formed into complex shapes without cracking, enabling applications like protective housings and packaging for photosensitive components. As part of Goodfellow's extensive foil inventory, AZ31 delivers versatile light blocking performance.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Material Properties for Alloys

Mechanical Properties
Element Value
Hardness - Brinell 73
Elongation at break( % ) 15
Modulus of elasticity( GPa ) 45
Tensile strength( MPa ) 290
Thermal Properties
Element Value
Melting point( C ) 605-630
Specific heat( J K⁻¹ kg⁻¹ ) 1001
Thermal conductivity( W m⁻¹ K⁻¹ ) 96
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 26@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 1.8

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