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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Sources5 documents: Kaiser Aluminum, Daiki Aluminium Industry, S.S. Aluminum, Hydro
Aluminum 1100-O
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 ADC12
JIS ADC12 (Al-Si-Cu, about A383 / EN AC-46100) high-pressure die-casting alloy, as cast; physical properties from Daiki Aluminium Industry (ADC12 ingot producer) measured values; modulus from S.S.Aluminum (ADC12 ingot producer) standard values.
1
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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NA Alloys Product DataDaiki Aluminium IndustryAluminum ADC12 · Yield strength: one test result, 0.2% proof stress, as cast, ASTM tensile bar (Daiki)Aluminum ADC12 · Ultimate tensile strength: one test result, as cast, ASTM tensile bar (Daiki)Aluminum ADC12 · Elongation at break: one test result, as cast, ASTM tensile bar (Daiki)
3
Die-Casting Alloys (ダイカスト用合金)S.S. AluminumAluminum ADC12 · Young's modulus (stiffness): standard value (S.S.Aluminum)
4
DIK365 Product DataDaiki Aluminium IndustryAluminum ADC12 · Density: measured (Daiki)Aluminum ADC12 · Thermal conductivity: measured on specimens cut from a 50 x 100 x 5 mm flat die casting (Daiki)Aluminum ADC12 · Thermal expansion: measured, temperature range not stated (Daiki)Aluminum ADC12 · Specific heat: measured (Daiki)Aluminum ADC12 · Melting point: solidus-liquidus (Daiki)
5
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 ADC12?
Aluminum ADC12 is stronger: its yield strength is 149 MPa against 35 MPa for Aluminum 1100-O (4.26x).
Which is lighter, Aluminum 1100-O or Aluminum ADC12?
Aluminum ADC12 is lighter: 2,680 kg/m³ against 2,710 kg/m³ for Aluminum 1100-O.
Which is stiffer, Aluminum 1100-O or Aluminum ADC12?
Aluminum ADC12 is stiffer: Young's modulus 79.8 GPa against 69 GPa for Aluminum 1100-O, so the same part in Aluminum ADC12 deflects less under the same load.
Which is lighter for the same job, Aluminum 1100-O or Aluminum ADC12?
For the same stiffness or strength: Aluminum ADC12 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 1100-O
Aluminum ADC12
Stiff rod or tie (tension)
17% heavier
lighter
Stiff beam (bending)
9% heavier
lighter
Stiff panel or plate
6% heavier
lighter
Strong rod or tie
4.3x heavier
lighter
Strong beam
2.66x heavier
lighter
Strong panel or plate
2.09x 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 ADC12?
Aluminum 1100-O stretches further before it breaks: 35% elongation at break against 2.3% for Aluminum ADC12.
Thermal
Which conducts heat better, Aluminum 1100-O or Aluminum ADC12?
Aluminum 1100-O conducts heat better: 222 W/m·K against 125 W/m·K for Aluminum ADC12.
Which expands less with temperature?
Aluminum ADC12 expands less: 21 µm/m·K against 23.6 µm/m·K for Aluminum 1100-O.