2024-T4/T351, Kaiser Aluminum sheet, coil & plate typical datasheet; Poisson from MIL-HDBK-5J
SAC305 (Sn96.5Ag3.0Cu0.5) solder alloy, bulk; Indium Corporation Indalloy 256 (SAC305) for Preforms product data sheet (Form No. 100346 R0, 2024), selected properties, test temperature not stated; expansion and specific heat from MacDermid Alpha VACULOY SAC TDS (06 September 2023).
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.
Questions
Is Aluminum 2024-T351 stronger than Solder SAC305?
Aluminum 2024-T351 is stronger: its yield strength is 324 MPa against 22 MPa for Solder SAC305 (14.7x).
Which is lighter, Aluminum 2024-T351 or Solder SAC305?
Aluminum 2024-T351 is lighter: 2,770 kg/m³ against 7,350 kg/m³ for Solder SAC305.
Which is stiffer, Aluminum 2024-T351 or Solder SAC305?
Aluminum 2024-T351 is stiffer: Young's modulus 73.1 GPa against 6.9 GPa for Solder SAC305, 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 Solder SAC305?
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, strong panel or plate.
Part that must be
Aluminum 2024-T351
Solder SAC305
Stiff rod or tie (tension)
lighter
28.1x heavier
Stiff beam (bending)
lighter
8.64x heavier
Stiff panel or plate
lighter
5.83x heavier
Strong rod or tie
lighter
39.1x heavier
Strong beam
lighter
15.9x heavier
Strong panel or plate
lighter
10.2x heavier
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 conducts heat better, Aluminum 2024-T351 or Solder SAC305?
Aluminum 2024-T351 conducts heat better: 120 W/m·K against 61 W/m·K for Solder SAC305.
Which expands less with temperature?
Solder SAC305 expands less: 21.9 µm/m·K against 22.9 µm/m·K for Aluminum 2024-T351.