1100-O (annealed) commercially pure aluminium, Kaiser Aluminum Tube & Pipe Alloy 1100 Technical Data (Rev. 05/06), typical properties; specific heat from Hydro EN AW-1050A (99.5% Al) extruded-products datasheet (10/2018).
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 1100-O stronger than FDM PAHT-CF?
FDM PAHT-CF is stronger: its tensile strength is 92 MPa against yield strength 35 MPa for Aluminum 1100-O (2.63x).
Which is lighter, Aluminum 1100-O or FDM PAHT-CF?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 2,710 kg/m³ for Aluminum 1100-O.
Which is stiffer, Aluminum 1100-O or FDM PAHT-CF?
Aluminum 1100-O is stiffer: Young's modulus 69 GPa against 3.86 GPa for FDM PAHT-CF, so the same part in Aluminum 1100-O deflects less under the same load.
Which is lighter for the same job, Aluminum 1100-O or FDM PAHT-CF?
For the same stiffness or strength: Aluminum 1100-O 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 1100-O
FDM PAHT-CF
Stiff rod or tie (tension)
lighter
6.99x heavier
Stiff beam (bending)
lighter
1.65x heavier
Stiff panel or plate
lighter
2% heavier
Strong rod or tie
6.72x heavier
lighter
Strong beam
4.87x heavier
lighter
Strong panel or plate
4.14x 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).