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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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.
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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Ceramic Seal Material Properties (01899 F)CoorsTekarchived copyCeramic Alumina 96% · Ultimate tensile strength: typical tensile strength, 25 °C (ACMA Test #4)Ceramic Alumina 96% · Compressive strength: typical, 20 °C (ASTM-C773)Ceramic Alumina 96% · Flexural strength: flexural strength (MOR), 20 °C (ASTM-F417)Ceramic Alumina 96% · Young's modulus (stiffness): typical, 20 °C (ASTM-C848)Ceramic Alumina 96% · Density: typical (ASTM-C20)Ceramic Alumina 96% · Poisson's ratio: typical, 20 °C (ASTM-C848)Ceramic Alumina 96% · Thermal conductivity: typical, 20 °C (ASTM-C408)Ceramic Alumina 96% · Thermal expansion: mean, 25-1000 °C (ASTM-C372)Ceramic Alumina 96% · Specific heat: typical, 100 °C (ASTM-E1269)
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 3003-O stronger than Ceramic Alumina 96%?
Ceramic Alumina 96% is stronger: its tensile strength is 221 MPa against yield strength 40 MPa for Aluminum 3003-O (5.53x).
Which is lighter, Aluminum 3003-O or Ceramic Alumina 96%?
Aluminum 3003-O is lighter: 2,730 kg/m³ against 3,720 kg/m³ for Ceramic Alumina 96%.
Which is stiffer, Aluminum 3003-O or Ceramic Alumina 96%?
Ceramic Alumina 96% is stiffer: Young's modulus 303 GPa against 69 GPa for Aluminum 3003-O, so the same part in Ceramic Alumina 96% deflects less under the same load.
Which is lighter for the same job, Aluminum 3003-O or Ceramic Alumina 96%?
For the same stiffness or strength: Ceramic Alumina 96% 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 3003-O
Ceramic Alumina 96%
Stiff rod or tie (tension)
3.22x heavier
lighter
Stiff beam (bending)
1.54x heavier
lighter
Stiff panel or plate
20% heavier
lighter
Strong rod or tie
4.05x heavier
lighter
Strong beam
2.29x heavier
lighter
Strong panel or plate
1.72x 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).
Thermal
Which conducts heat better, Aluminum 3003-O or Ceramic Alumina 96%?
Aluminum 3003-O conducts heat better: 193 W/m·K against 24.7 W/m·K for Ceramic Alumina 96%.
Which expands less with temperature?
Ceramic Alumina 96% expands less: 8.2 µm/m·K against 23.2 µm/m·K for Aluminum 3003-O.