Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
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1100-O (annealed) commercially pure aluminium, Kaiser Aluminum Tube & Pipe Alloy 1100 Technical Data (Rev. 05/06), typical properties; specific heat from Hydro EN AW-1050A (99.5% Al) extruded-products datasheet (10/2018).
Aluminum 3003-O
3003-O (annealed) aluminium-manganese alloy, the heat-exchanger tube and brazing alloy, Kaiser Aluminum Tube & Pipe Alloy 3003 Technical Data (Rev. 05/06), typical properties; specific heat from the NIST cryogenic 3003-F fit at 293 K.
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Alloy 1100 Tube & Pipe Technical Data, Rev. 05/06Kaiser Aluminumarchived copyAluminum 1100-O · Yield strength: typical, O, 0.0625 in specimenAluminum 1100-O · Ultimate tensile strength: typical, OAluminum 1100-O · Elongation at break: typical, O, in 4DAluminum 1100-O · Young's modulus (stiffness): typicalAluminum 1100-O · Density: nominal, 20 °CAluminum 1100-O · Thermal conductivity: typical, O, 20 °CAluminum 1100-O · Thermal expansion: typical, mean 20-100 °CAluminum 1100-O · Melting point: melting range
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Alloy 3003 Tube & Pipe Technical Data, Rev. 05/06Kaiser Aluminumarchived copyAluminum 3003-O · Yield strength: typical, O, 0.0625 in specimenAluminum 3003-O · Ultimate tensile strength: typical, OAluminum 3003-O · Elongation at break: typical, O, in 4DAluminum 3003-O · Young's modulus (stiffness): typicalAluminum 3003-O · Density: nominal, 20 °CAluminum 3003-O · Thermal conductivity: typical, O, 20 °CAluminum 3003-O · Thermal expansion: typical, mean 20-100 °CAluminum 3003-O · Melting point: melting range
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Technical Datasheet, Extruded Products: Alloy EN AW-1050AHydroAluminum 1100-O · Specific heat: base material: commercially pure aluminium EN AW-1050A (Hydro), 20 °C
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Questions
Mechanical
Is Aluminum 1100-O stronger than Aluminum 3003-O?
Aluminum 3003-O is stronger: its yield strength is 40 MPa against 35 MPa for Aluminum 1100-O (14%).
Which is lighter, Aluminum 1100-O or Aluminum 3003-O?
Aluminum 1100-O is lighter: 2,710 kg/m³ against 2,730 kg/m³ for Aluminum 3003-O.
Which is stiffer, Aluminum 1100-O or Aluminum 3003-O?
Aluminum 1100-O is stiffer: Young's modulus 69 GPa against 69 GPa for Aluminum 3003-O, so the same part in Aluminum 1100-O deflects less under the same load.
Which is lighter for the same job, Aluminum 1100-O or Aluminum 3003-O?
For the same stiffness or strength: Aluminum 3003-O is lighter for a strong rod or tie, strong beam, strong panel or plate.
Part that must be
Aluminum 1100-O
Aluminum 3003-O
Stiff rod or tie (tension)
about equal
about equal
Stiff beam (bending)
about equal
about equal
Stiff panel or plate
about equal
about equal
Strong rod or tie
13% heavier
lighter
Strong beam
9% heavier
lighter
Strong panel or plate
6% heavier
lighter
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 is more ductile, Aluminum 1100-O or Aluminum 3003-O?
Aluminum 1100-O stretches further before it breaks: 35% elongation at break against 30% for Aluminum 3003-O.
Thermal
Which conducts heat better, Aluminum 1100-O or Aluminum 3003-O?
Aluminum 1100-O conducts heat better: 222 W/m·K against 193 W/m·K for Aluminum 3003-O.
Which expands less with temperature?
Aluminum 3003-O expands less: 23.2 µm/m·K against 23.6 µm/m·K for Aluminum 1100-O.