Materials / Compare
DMLS AlSi10Mg Aluminum vs. Concrete
Compare DMLS AlSi10Mg Aluminum vs. Concrete strength, stiffness, weight and thermal properties.
| Try it on a partA sample part to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 270MPasourcetypical, as manufactured, horizontal | not sourced |
| Ultimate tensile strength | 450MPasourcetypical, as manufactured, horizontal | not sourced |
| Compressive strength | not sourced | 27.6MPasourcespecified compressive strength class (f'c), not a measured typical |
| 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) | not sourced |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 2,240–2,400kg/m³sourcerange for normalweight concrete |
| 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) | 0.15–0.2sourcegeneral range at normal ambient conditions (overall 0.11-0.32) |
| 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) | 0.9W/m·Ksourcetypical (comparative value) |
| Thermal expansion | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 | 8–12µm/m·Ksourcetypical range for portland cement concrete (aggregate dependent) |
| 100 mm part over a 50 °C swing | 100µm growth | 50µm growth2x less |
| Specific heat | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C | 900J/kg·Ksourcetypical (NIST guidance for thermal analysis) |
| Heats up and cools (diffusivity) | 42.8mm²/s99.3x faster | 0.431mm²/s |
| Thermal shock resistance | 13,819W/m | not sourced |
| Max service temperature | not sourced | 65°Csourcecode long-term temperature limit (ASME Code, concrete containments) |
| 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 | Normal-weight portland cement concrete, strength class f'c = 4000 psi (28 MPa) per NRMCA CIP 35; density NRMCA CIP 36; thermal conductivity USDA FPL Wood Handbook; service temperature ORNL/NRC review |
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
Which is lighter, DMLS AlSi10Mg Aluminum or Concrete?
Concrete is lighter: 2,320 kg/m³ against 2,670 kg/m³ for DMLS AlSi10Mg Aluminum.
Which conducts heat better, DMLS AlSi10Mg Aluminum or Concrete?
DMLS AlSi10Mg Aluminum conducts heat better: 110 W/m·K against 0.9 W/m·K for Concrete.
Which expands less with temperature?
Concrete expands less: 10 µm/m·K against 20 µm/m·K for DMLS AlSi10Mg Aluminum.