Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
Try it on a partA bracket to run stress or thermal on, free in your browser
Sources7 documents: Daiki Aluminium Industry, EOS GmbH, S.S. Aluminum, Renishaw, U.S. Department of Defense
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.
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
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)
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
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
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)
5
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)
6
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)
7
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 ADC12 stronger than DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against 149 MPa for Aluminum ADC12 (1.81x).
Which is lighter, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is lighter: 2,670 kg/m³ against 2,680 kg/m³ for Aluminum ADC12.
Which is stiffer, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
Aluminum ADC12 is stiffer: Young's modulus 79.8 GPa against 72 GPa for DMLS AlSi10Mg Aluminum, so the same part in Aluminum ADC12 deflects less under the same load.
Which is lighter for the same job, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
For the same stiffness or strength: Aluminum ADC12 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; DMLS AlSi10Mg Aluminum is lighter for a strong rod or tie, strong beam, strong panel or plate.
Part that must be
Aluminum ADC12
DMLS AlSi10Mg Aluminum
Stiff rod or tie (tension)
lighter
10% heavier
Stiff beam (bending)
lighter
5% heavier
Stiff panel or plate
lighter
3% heavier
Strong rod or tie
1.82x heavier
lighter
Strong beam
49% heavier
lighter
Strong panel or plate
35% 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 ADC12 or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum stretches further before it breaks: 10.2% elongation at break against 2.3% for Aluminum ADC12.
Thermal
Which conducts heat better, Aluminum ADC12 or DMLS AlSi10Mg Aluminum?
Aluminum ADC12 conducts heat better: 125 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 21 µm/m·K for Aluminum ADC12.