Materials / Compare
Aluminum ADC12 vs. Wood
Compare Aluminum ADC12 vs. Wood strength, stiffness, weight and thermal properties.
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 149MPasourceone test result, 0.2% proof stress, as cast, ASTM tensile bar (Daiki) | not given (tensile used) |
| Ultimate tensile strength | 345MPasourceone test result, as cast, ASTM tensile bar (Daiki) | 99MPasourcemodulus of rupture (no direct tensile value) |
| Compressive strength | not sourced | 46.6MPasourcecompression parallel to grain (maximum crushing strength), 12% MC |
| Flexural strength | not sourced | 99MPasourcemodulus of rupture (static bending), 12% MC |
| Elongation at break | 2.3%sourceone test result, as cast, ASTM tensile bar (Daiki) | not sourced |
| Young's modulus (stiffness) | 79.8GPasourcestandard value (S.S.Aluminum) | 12.5GPasourcebending MOE, parallel to grain |
| Density | 2,680kg/m³sourcemeasured (Daiki) | not sourced |
| Strength to weight | 55.6kN·m/kg | not sourced |
| Stiffness to weight | 29.8MN·m/kg | not sourced |
| Poisson's ratio | not sourced | 0.35sourcemu_LR (red oak group, ~12% MC) |
| Shear modulus | not sourced | 4.63GPa |
| Bulk modulus | not sourced | 13.9GPa |
| Speed of sound | 5,457m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 125W/m·Ksourcemeasured on specimens cut from a 50 x 100 x 5 mm flat die casting (Daiki) | 0.18W/m·Ksourceacross grain, 12% MC (Table 4-7, approximate) |
| Thermal expansion | 21µm/m·Ksourcemeasured, temperature range not stated (Daiki) | 3.1–4.5µm/m·Ksourceparallel to grain, ovendry wood, range across species |
| 100 mm part over a 50 °C swing | 105µm growth | 19µm growth5.53x less |
| Specific heat | 911J/kg·Ksourcemeasured (Daiki) | 1,700J/kg·Ksourcesolid wood (all species), 12% MC, 27 C |
| Heats up and cools (diffusivity) | 51.2mm²/s | not sourced |
| Thermal shock resistance | not sourced | 244W/m |
| Melting point | 515–582°Csourcesolidus-liquidus (Daiki) | not sourced |
| Values for | JIS ADC12 (Al-Si-Cu, about A383 / EN AC-46100) high-pressure die-casting alloy, as cast; physical properties from Daiki Aluminium Industry (ADC12 ingot producer) measured values; modulus from S.S.Aluminum (ADC12 ingot producer) standard values. | Northern red oak (Quercus rubra), clear straight-grained specimens at 12% MC, parallel to grain unless stated; USDA FPL Wood Handbook FPL-GTR-282 (2021) Ch. 4 and Ch. 5 |
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 ADC12 stronger than Wood?
Aluminum ADC12 is stronger: its yield strength is 149 MPa against tensile strength 99 MPa for Wood (1.51x).
Which is stiffer, Aluminum ADC12 or Wood?
Aluminum ADC12 is stiffer: Young's modulus 79.8 GPa against 12.5 GPa for Wood, so the same part in Aluminum ADC12 deflects less under the same load.
Which conducts heat better, Aluminum ADC12 or Wood?
Aluminum ADC12 conducts heat better: 125 W/m·K against 0.18 W/m·K for Wood.
Which expands less with temperature?
Wood expands less: 3.8 µm/m·K against 21 µm/m·K for Aluminum ADC12.