Materials / Compare
DMLS AlSi10Mg Aluminum vs. Wood
Compare DMLS AlSi10Mg Aluminum 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 | 270MPasourcetypical, as manufactured, horizontal | not given (tensile used) |
| Ultimate tensile strength | 450MPasourcetypical, as manufactured, horizontal | 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 | 10.2%sourcetypical at break, as manufactured, horizontal | not sourced |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | 12.5GPasourcebending MOE, parallel to grain |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | not sourced |
| Strength to weight | 101kN·m/kg | not sourced |
| Stiffness to weight | 27MN·m/kg | not sourced |
| Poisson's ratio | 0.33sourcebase material: cast Al-Si-Mg alloy 359.0 (Al-9Si-0.6Mg, closest MIL-HDBK-5J alloy to AlSi10Mg / EN AC-43000) | 0.35sourcemu_LR (red oak group, ~12% MC) |
| Shear modulus | 27.1GPa5.85x stiffer in shear | 4.63GPa |
| Bulk modulus | 70.6GPa | 13.9GPa |
| Speed of sound | 5,193m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) | 0.18W/m·Ksourceacross grain, 12% MC (Table 4-7, approximate) |
| Thermal expansion | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 | 3.1–4.5µm/m·Ksourceparallel to grain, ovendry wood, range across species |
| 100 mm part over a 50 °C swing | 100µm growth | 19µm growth5.26x less |
| Specific heat | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C | 1,700J/kg·Ksourcesolid wood (all species), 12% MC, 27 C |
| Heats up and cools (diffusivity) | 42.8mm²/s | not sourced |
| Thermal shock resistance | 13,819W/m56.7x more resistant | 244W/m |
| Values for | EOS Aluminium AlSi10Mg (powder 9011-0024), EOS M 290 | 30 µm process (AlSi10Mg_FlexM291 2.01), as manufactured, horizontal; machined (turned) specimens, ISO 6892-1 B10 | 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.
DMLS AlSi10Mg Aluminum is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS AlSi10Mg Aluminum stronger than Wood?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against tensile strength 99 MPa for Wood (2.73x).
Which is stiffer, DMLS AlSi10Mg Aluminum or Wood?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 12.5 GPa for Wood, so the same part in DMLS AlSi10Mg Aluminum deflects less under the same load.
Which conducts heat better, DMLS AlSi10Mg Aluminum or Wood?
DMLS AlSi10Mg Aluminum conducts heat better: 110 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 20 µm/m·K for DMLS AlSi10Mg Aluminum.