2024-T4/T351, Kaiser Aluminum sheet, coil & plate typical datasheet; Poisson from MIL-HDBK-5J
EOS PA 2200 (PA12) Material Data Sheet, process parameter 'Balance' at 120 µm layer thickness, X orientation, dry (conditioned values not given). Live MDS status 04.10.2026, last changed 10.09.2026; PDF via ?topdf=... link on the same page.
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.
SLS PA12 Nylon is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Aluminum 2024-T351 stronger than SLS PA12 Nylon?
Aluminum 2024-T351 is stronger: its yield strength is 324 MPa against tensile strength 48 MPa for SLS PA12 Nylon (6.75x).
Which is lighter, Aluminum 2024-T351 or SLS PA12 Nylon?
SLS PA12 Nylon is lighter: 930 kg/m³ against 2,770 kg/m³ for Aluminum 2024-T351.
Which is stiffer, Aluminum 2024-T351 or SLS PA12 Nylon?
Aluminum 2024-T351 is stiffer: Young's modulus 73.1 GPa against 1.65 GPa for SLS PA12 Nylon, so the same part in Aluminum 2024-T351 deflects less under the same load.
Which is lighter for the same job, Aluminum 2024-T351 or SLS PA12 Nylon?
For the same stiffness or strength: Aluminum 2024-T351 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam; SLS PA12 Nylon is lighter for a strong panel or plate.
Part that must be
Aluminum 2024-T351
SLS PA12 Nylon
Stiff rod or tie (tension)
lighter
14.9x heavier
Stiff beam (bending)
lighter
2.23x heavier
Stiff panel or plate
lighter
19% heavier
Strong rod or tie
lighter
2.27x heavier
Strong beam
lighter
20% heavier
Strong panel or plate
15% 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).