Materials / Compare
DMLS AlSi10Mg Aluminum vs. Rubber
Compare DMLS AlSi10Mg Aluminum vs. Rubber 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 | 23MPasourcetypical |
| Elongation at break | 10.2%sourcetypical at break, as manufactured, horizontal | 830%sourcetypical |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | not sourced |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 960kg/m³sourcetypical (specific gravity) |
| Strength to weight | 101kN·m/kg4.22x higher | 24kN·m/kg |
| 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) | 0.5sourcegovernment (NBS J. Res. 68A, 1964): computed by NBS for peroxide-cured gum NR vulcanizate, 25 °C, infinitesimal deformation0.49 in the solver: the linear element locks as the ratio nears 0.5 (nearly incompressible). |
| Shear modulus | 27.1GPa | not sourced |
| Bulk modulus | 70.6GPa | not sourced |
| Speed of sound | 5,193m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) | 0.151W/m·Ksourcegovernment selected value (US Army Natick Laboratories TR 66-49-PR, 1966), soft vulcanized natural rubber, 25 °C |
| Thermal expansion | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 | not sourced |
| 100 mm part over a 50 °C swing | 100µm growth | not sourced |
| Specific heat | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C | 1,881J/kg·Ksourcegovernment (NBS J. Res. 68A, Table 7; values observed for unvulcanized NR by Bekkedahl and Matheson), 25 °C |
| Heats up and cools (diffusivity) | 42.8mm²/s512x faster | 0.0836mm²/s |
| Thermal shock resistance | 13,819W/m | not sourced |
| Max service temperature | not sourced | 70°Csourcecontinuous use operating range |
| 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 | Weir Minerals Linatex Premium rubber (95 % natural rubber), typical physical properties, spec sheet WMD0118/202305 |
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 Rubber?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against tensile strength 23 MPa for Rubber (11.7x).
Which is lighter, DMLS AlSi10Mg Aluminum or Rubber?
Rubber is lighter: 960 kg/m³ against 2,670 kg/m³ for DMLS AlSi10Mg Aluminum.
Which is lighter for the same job, DMLS AlSi10Mg Aluminum or Rubber?
For the same stiffness or strength: DMLS AlSi10Mg Aluminum is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | DMLS AlSi10Mg Aluminum | Rubber |
|---|---|---|
| Strong rod or tie | lighter | 4.22x heavier |
| Strong beam | lighter | 1.86x heavier |
| Strong panel or plate | lighter | 23% 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, DMLS AlSi10Mg Aluminum or Rubber?
DMLS AlSi10Mg Aluminum conducts heat better: 110 W/m·K against 0.151 W/m·K for Rubber.