A380 aluminium high-pressure die-casting alloy, typical properties; Rheocast Company (aluminium die caster, Germantown WI) A380 alloy data page.
Bambu Lab ASA, TDS V3.0, printed specimens X-Y; nozzle 260 °C, bed 80 °C, 200 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing.
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.
FDM ASA is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Aluminum A380 stronger than FDM ASA?
Aluminum A380 is stronger: its yield strength is 160 MPa against tensile strength 37 MPa for FDM ASA (4.32x).
Which is lighter, Aluminum A380 or FDM ASA?
FDM ASA is lighter: 1,050 kg/m³ against 2,713 kg/m³ for Aluminum A380.
Which is stiffer, Aluminum A380 or FDM ASA?
Aluminum A380 is stiffer: Young's modulus 71 GPa against 2.45 GPa for FDM ASA, so the same part in Aluminum A380 deflects less under the same load.
Which is lighter for the same job, Aluminum A380 or FDM ASA?
For the same stiffness or strength: Aluminum A380 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam; FDM ASA is lighter for a strong panel or plate.
Part that must be
Aluminum A380
FDM ASA
Stiff rod or tie (tension)
lighter
11.2x heavier
Stiff beam (bending)
lighter
2.08x heavier
Stiff panel or plate
lighter
19% heavier
Strong rod or tie
lighter
1.67x heavier
Strong beam
lighter
3% heavier
Strong panel or plate
24% 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 A380 or FDM ASA?
FDM ASA stretches further before it breaks: 9.2% elongation at break against 3.5% for Aluminum A380.
Which conducts heat better, Aluminum A380 or FDM ASA?
Aluminum A380 conducts heat better: 96.2 W/m·K against 0.17 W/m·K for FDM ASA.
Which expands less with temperature?
Aluminum A380 expands less: 21.8 µm/m·K against 95 µm/m·K for FDM ASA.