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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Sources3 documents: Kaiser Aluminum, U.S. Department of Defense
Aluminum 2024-T351
2024-T4/T351, Kaiser Aluminum sheet, coil & plate typical datasheet; Poisson from MIL-HDBK-5J
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.
1
Alloy 2024 Sheet, Coil & Plate Technical DataKaiser Aluminumarchived copyAluminum 2024-T351 · Yield strength: typical, 0.2% offset, .500 in dia specimenAluminum 2024-T351 · Ultimate tensile strength: typicalAluminum 2024-T351 · Elongation at break: typical, in 4DAluminum 2024-T351 · Young's modulus (stiffness): typicalAluminum 2024-T351 · Density: nominalAluminum 2024-T351 · Thermal conductivity: typical, 20 °CAluminum 2024-T351 · Thermal expansion: typical, mean 20-100 °CAluminum 2024-T351 · Specific heat: typical, at 100 °CAluminum 2024-T351 · Melting point: melting range
2
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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MIL-HDBK-5J, Metallic Materials and Elements for Aerospace Vehicle Structures (2003)U.S. Department of DefenseAluminum 2024-T351 · Poisson's ratio: typical (handbook physical constant), all tempers
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 2024-T351 stronger than Aluminum 3003-O?
Aluminum 2024-T351 is stronger: its yield strength is 324 MPa against 40 MPa for Aluminum 3003-O (8.1x).
Which is lighter, Aluminum 2024-T351 or Aluminum 3003-O?
Aluminum 3003-O is lighter: 2,730 kg/m³ against 2,770 kg/m³ for Aluminum 2024-T351.
Which is stiffer, Aluminum 2024-T351 or Aluminum 3003-O?
Aluminum 2024-T351 is stiffer: Young's modulus 73.1 GPa against 69 GPa for Aluminum 3003-O, so the same part in Aluminum 2024-T351 deflects less under the same load.
Which is lighter for the same job, Aluminum 2024-T351 or Aluminum 3003-O?
For the same stiffness or strength: Aluminum 2024-T351 is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam, strong panel or plate.
Part that must be
Aluminum 2024-T351
Aluminum 3003-O
Stiff rod or tie (tension)
lighter
4% heavier
Stiff beam (bending)
lighter
1% heavier
Stiff panel or plate
about equal
about equal
Strong rod or tie
lighter
7.98x heavier
Strong beam
lighter
3.98x heavier
Strong panel or plate
lighter
2.8x 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 is more ductile, Aluminum 2024-T351 or Aluminum 3003-O?
Aluminum 3003-O stretches further before it breaks: 30% elongation at break against 19% for Aluminum 2024-T351.
Thermal
Which conducts heat better, Aluminum 2024-T351 or Aluminum 3003-O?
Aluminum 3003-O conducts heat better: 193 W/m·K against 120 W/m·K for Aluminum 2024-T351.
Which expands less with temperature?
Aluminum 2024-T351 expands less: 22.9 µm/m·K against 23.2 µm/m·K for Aluminum 3003-O.