A380 aluminium high-pressure die-casting alloy, typical properties; Rheocast Company (aluminium die caster, Germantown WI) A380 alloy data page.
Bambu Lab PAHT-CF, TDS V3.0, printed specimens X-Y, dry state; nozzle 290 °C, bed 100 °C, 100 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 PAHT-CF is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Aluminum A380 stronger than FDM PAHT-CF?
Aluminum A380 is stronger: its yield strength is 160 MPa against tensile strength 92 MPa for FDM PAHT-CF (1.74x).
Which is lighter, Aluminum A380 or FDM PAHT-CF?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 2,713 kg/m³ for Aluminum A380.
Which is stiffer, Aluminum A380 or FDM PAHT-CF?
Aluminum A380 is stiffer: Young's modulus 71 GPa against 3.86 GPa for FDM PAHT-CF, so the same part in Aluminum A380 deflects less under the same load.
Which is lighter for the same job, Aluminum A380 or FDM PAHT-CF?
For the same stiffness or strength: Aluminum A380 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; FDM PAHT-CF is lighter for a strong rod or tie, strong beam, strong panel or plate.
Part that must be
Aluminum A380
FDM PAHT-CF
Stiff rod or tie (tension)
lighter
7.19x heavier
Stiff beam (bending)
lighter
1.68x heavier
Stiff panel or plate
lighter
3% heavier
Strong rod or tie
47% heavier
lighter
Strong beam
1.77x heavier
lighter
Strong panel or plate
1.94x 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 PAHT-CF?
FDM PAHT-CF stretches further before it breaks: 8.4% elongation at break against 3.5% for Aluminum A380.