963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C
Heats up and cools (diffusivity)
36.8mm²/s
42.8mm²/s16% faster
Thermal shock resistance
not sourced
13,819W/m
Values for
A380 aluminium high-pressure die-casting alloy, typical properties; Rheocast Company (aluminium die caster, Germantown WI) A380 alloy data page.
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
Every value links to the document that states it. "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
Is Aluminum A380 stronger than DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against 160 MPa for Aluminum A380 (1.69x).
Which is lighter, Aluminum A380 or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is lighter: 2,670 kg/m³ against 2,713 kg/m³ for Aluminum A380.
Which is stiffer, Aluminum A380 or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 71 GPa for Aluminum A380, so the same part in DMLS AlSi10Mg Aluminum deflects less under the same load.
Which is lighter for the same job, Aluminum A380 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 A380
DMLS AlSi10Mg Aluminum
Stiff rod or tie (tension)
3% heavier
lighter
Stiff beam (bending)
2% heavier
lighter
Stiff panel or plate
2% heavier
lighter
Strong rod or tie
1.71x heavier
lighter
Strong beam
44% heavier
lighter
Strong panel or plate
32% 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 conducts heat better, Aluminum A380 or DMLS AlSi10Mg Aluminum?
DMLS AlSi10Mg Aluminum conducts heat better: 110 W/m·K against 96.2 W/m·K for Aluminum A380.
Which expands less with temperature?
DMLS AlSi10Mg Aluminum expands less: 20 µm/m·K against 21.8 µm/m·K for Aluminum A380.