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

Aluminum/Magnesium/Silicon Alloy Disk (Al98/Mg1/Si0.6) combines the lightweight, conductive properties of aluminum with magnesium’s strengthening effect and silicon’s precipitation-hardening capability. This balanced composition delivers medium-to-high strength, excellent corrosion resistance, and good formability, making it ideal for structural and precision engineering components. In disk form, it is used in aerospace for lightweight structural fasteners, in automotive for brake and clutch components, and in marine engineering for corrosion-resistant fittings. Technologies benefiting include high-precision optical mounts, turbine disk assemblies, and advanced robotics platforms requiring rigid yet lightweight circular components. Research focuses on optimizing heat treatment cycles to enhance precipitation hardening, improve fatigue resistance, and maintain dimensional stability under high mechanical loads. Aluminum/Magnesium/Silicon Alloy Disk (Al98/Mg1/Si0.6) remains a critical material in sectors where a balance of mechanical strength, corrosion protection, and machinability is essential.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Disc

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

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