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Formula: Al 95/Cu 4/Mg 1
Form: Tube
Material: Aluminium/Copper/Magnesium (Dural®)
Commodity: Alloys
Wall Thickness: 0.051mm
Temper: As Drawn
Dural® Tube is a high-strength aluminum-copper alloy engineered for excellent mechanical performance, combining high tensile strength, good fatigue resistance, and moderate corrosion resistance. Its favorable strength-to-weight ratio makes it a key material in aerospace, automotive, and precision engineering industries. The tube form is especially suited for structural applications where both rigidity and lightweight performance are critical. Primary applications include aircraft fuselage frames, automotive chassis components, and sporting equipment requiring precision load handling. Specific uses extend to high-performance bicycle frames, aerospace support structures, and precision mechanical assemblies. Its machinability and formability allow for efficient manufacturing, while heat-treatable grades further enhance performance for demanding operational environments. In research and innovation, Dural® Tube enables lightweight design optimization, advanced structural analysis, and prototype development. In industrial practice, it is valued for reducing structural weight while maintaining the required mechanical integrity under high operational stresses.
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Tolerances

Tube
Outside Diameter =<2mm ±0.05mm
Outside Diameter 2mm - 5mm ±0.1mm
Outside Diameter >5mm ±5%
Wall Thickness ±10%

Material Properties for Alloys

Mechanical Properties
Element Value
Hardness - Brinell 115-135
Elongation at break( % ) <22
Modulus of elasticity( GPa ) 73
Izod impact strength( J m⁻¹ ) Aug-22
Tensile strength( MPa ) 420-500
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 5
Temperature coefficient( K⁻¹ ) 0.0022-0.0026
Physical Properties
Element Value
Density( gcm⁻³ ) 2.8
Thermal Properties
Element Value
Thermal conductivity( W m⁻¹ K⁻¹ ) 147@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 22.5@20-100°C

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