Aluminum/Magnesium/Silicon Alloy Foil (Al98/Mg1/Si0.6)

Aluminum/Magnesium/Silicon Alloy Foil (Al98/Mg1/Si0.6) is a precision-engineered thin metallic layer offering a blend of low density, medium-to-high tensile strength, and enhanced corrosion resistance. The 1% magnesium content boosts structural integrity and fatigue performance, while the 0.6% silicon enables precipitation hardening for improved wear resistance and thermal stability. In foil form, it is widely employed in aerospace as thermal shielding layers, in electronics for electromagnetic interference (EMI) barriers, and in automotive lightweight insulation systems. Technologies that benefit include flexible printed circuit boards, spacecraft multilayer insulation blankets, and high-performance battery cell wrapping. Research efforts aim to refine alloy microstructures through controlled rolling and heat treatment to enhance conductivity, improve surface finish, and extend mechanical durability under cyclic thermal stress. Aluminum/Magnesium/Silicon Alloy Foil (Al98/Mg1/Si0.6) continues to be an indispensable choice where lightweight form factor, strength, and environmental resistance converge.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

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

Material Properties for Alloys

Mechanical Properties

Element	Value
Hardness - Brinell	10-100
Elongation at break( % )	<20
Modulus of elasticity( GPa )	70
Izod impact strength( J m⁻¹ )	27-34
Shear strength( MPa )	160-200
Tensile strength( MPa )	150-430

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	3.4-3.8
Temperature coefficient( K⁻¹ )	0.003

Physical Properties

Element	Value
Density( gcm⁻³ )	2.69

Thermal Properties

Element	Value
Specific heat( J K⁻¹ kg⁻¹ )	904@23°C
Thermal conductivity( W m⁻¹ K⁻¹ )	180-193@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	23@20-100°C