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, EOS GmbH, Renishaw, U.S. Department of Defense
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.
DMLS AlSi10Mg Aluminum
EOS Aluminium AlSi10Mg (powder 9011-0024), EOS M 290 | 30 µm process (AlSi10Mg_FlexM291 2.01), as manufactured, horizontal; machined (turned) specimens, ISO 6892-1 B10
1
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
2
EOS Aluminium AlSi10Mg Material Data SheetEOS GmbHarchived copyDMLS AlSi10Mg Aluminum · Yield strength: typical, as manufactured, horizontalDMLS AlSi10Mg Aluminum · Ultimate tensile strength: typical, as manufactured, horizontalDMLS AlSi10Mg Aluminum · Elongation at break: typical at break, as manufactured, horizontalDMLS AlSi10Mg Aluminum · Thermal conductivity: typical, as manufactured, horizontal (ISO 22007-2)DMLS AlSi10Mg Aluminum · Thermal expansion: mean 25-100 °C, ASTM E228
3
RenAM 500 Series Aluminium AlSi10Mg Material Data SheetRenishawDMLS AlSi10Mg Aluminum · Young's modulus (stiffness): same material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY)
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EOS Aluminium AlSi10Mg Material Data Sheet, FlexLine, M 290 (2018)EOS GmbHarchived copyDMLS AlSi10Mg Aluminum · Density: typical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm)
5
MIL-HDBK-5J, Metallic Materials and Elements for Aerospace Vehicle Structures (2003)U.S. Department of DefenseDMLS AlSi10Mg Aluminum · Poisson's ratio: base material: cast Al-Si-Mg alloy 359.0 (Al-9Si-0.6Mg, closest MIL-HDBK-5J alloy to AlSi10Mg / EN AC-43000)DMLS AlSi10Mg Aluminum · Specific heat: base material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °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.
DMLS AlSi10Mg Aluminum is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Mechanical
Is Aluminum 3003-O stronger than DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against 40 MPa for Aluminum 3003-O (6.75x).
Which is lighter, Aluminum 3003-O or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is lighter: 2,670 kg/m³ against 2,730 kg/m³ for Aluminum 3003-O.
Which is stiffer, Aluminum 3003-O or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 69 GPa for Aluminum 3003-O, so the same part in DMLS AlSi10Mg Aluminum deflects less under the same load.
Which is lighter for the same job, Aluminum 3003-O or DMLS AlSi10Mg Aluminum?
For the same stiffness or strength: DMLS AlSi10Mg Aluminum 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
DMLS AlSi10Mg Aluminum
Stiff rod or tie (tension)
7% heavier
lighter
Stiff beam (bending)
4% heavier
lighter
Stiff panel or plate
4% heavier
lighter
Strong rod or tie
6.9x heavier
lighter
Strong beam
3.65x heavier
lighter
Strong panel or plate
2.66x 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 3003-O or DMLS AlSi10Mg Aluminum?
Aluminum 3003-O stretches further before it breaks: 30% elongation at break against 10.2% for DMLS AlSi10Mg Aluminum.
Thermal
Which conducts heat better, Aluminum 3003-O or DMLS AlSi10Mg Aluminum?
Aluminum 3003-O conducts heat better: 193 W/m·K against 110 W/m·K for DMLS AlSi10Mg Aluminum.
Which expands less with temperature?
DMLS AlSi10Mg Aluminum expands less: 20 µm/m·K against 23.2 µm/m·K for Aluminum 3003-O.