6063-T6 extruded tube, Kaiser Aluminum Tube & Pipe Alloy 6063 Technical Data (Rev. 05/06), typical properties; specific heat from Hydro EN AW-6063 extruded-products datasheet (Rev.4, 03/2023).
C11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical values
Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Questions
Is Aluminum 6063-T6 stronger than Copper C110?
Aluminum 6063-T6 is stronger: its yield strength is 215 MPa against 69 MPa for Copper C110 (3.12x).
Which is lighter, Aluminum 6063-T6 or Copper C110?
Aluminum 6063-T6 is lighter: 2,700 kg/m³ against 8,913 kg/m³ for Copper C110.
Which is stiffer, Aluminum 6063-T6 or Copper C110?
Copper C110 is stiffer: Young's modulus 117 GPa against 69 GPa for Aluminum 6063-T6, so the same part in Copper C110 deflects less under the same load.
Which is lighter for the same job, Aluminum 6063-T6 or Copper C110?
For the same stiffness or strength: Aluminum 6063-T6 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
Part that must be
Aluminum 6063-T6
Copper C110
Stiff rod or tie (tension)
lighter
1.94x heavier
Stiff beam (bending)
lighter
2.53x heavier
Stiff panel or plate
lighter
2.77x heavier
Strong rod or tie
lighter
10.3x heavier
Strong beam
lighter
7.04x heavier
Strong panel or plate
lighter
5.83x heavier
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Which conducts heat better, Aluminum 6063-T6 or Copper C110?
Copper C110 conducts heat better: 391 W/m·K against 201 W/m·K for Aluminum 6063-T6.
Which expands less with temperature?
Copper C110 expands less: 16.9 µm/m·K against 23.4 µm/m·K for Aluminum 6063-T6.