C11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical values
Formlabs Elastic 50A Resin V2 (FLELCL02), TDS Rev. 01 24.01.2024; parts printed on Form 3, 100 µm, Elastic 50A V2 settings and post-processing; tensile on Die C specimens cut from printed sheets after 3+ h at 23 °C.
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.
SLA Resin Elastic 50A is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Copper C110 stronger than SLA Resin Elastic 50A?
Copper C110 is stronger: its yield strength is 69 MPa against tensile strength 3.4 MPa for SLA Resin Elastic 50A (20.3x).
Which is lighter, Copper C110 or SLA Resin Elastic 50A?
SLA Resin Elastic 50A is lighter: 1,010 kg/m³ against 8,913 kg/m³ for Copper C110.
Which is lighter for the same job, Copper C110 or SLA Resin Elastic 50A?
For the same stiffness or strength: Copper C110 is lighter for a strong rod or tie; SLA Resin Elastic 50A is lighter for a strong beam, strong panel or plate.
Part that must be
Copper C110
SLA Resin Elastic 50A
Strong rod or tie
lighter
2.3x heavier
Strong beam
19% heavier
lighter
Strong panel or plate
1.96x 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).