Materials / Compare
DMLS AlSi10Mg Aluminum vs. FDM ASA
Compare DMLS AlSi10Mg Aluminum vs. FDM ASA 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 | 37MPasourcetypical |
| Flexural strength | not sourced | 65MPasourcetypical |
| Elongation at break | 10.2%sourcetypical at break, as manufactured, horizontal | 9.2%sourcetypical |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | 2.45GPasourcetypical |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 1,050kg/m³sourcetypical |
| Strength to weight | 101kN·m/kg2.87x higher | 35.2kN·m/kg |
| Stiffness to weight | 27MN·m/kg11.6x higher | 2.33MN·m/kg |
| 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) | not sourced |
| Shear modulus | 27.1GPa | not sourced |
| Bulk modulus | 70.6GPa | not sourced |
| Speed of sound | 5,193m/s | 1,528m/s |
| Thermal | ||
| Thermal conductivity | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) | 0.17W/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, typical |
| Thermal expansion | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 | 80–110µm/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, range |
| 100 mm part over a 50 °C swing | 100µm growth4.75x less | 475µm growth |
| Specific heat | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C | not sourced |
| Heats up and cools (diffusivity) | 42.8mm²/s | not sourced |
| Thermal shock resistance | 13,819W/m | not sourced |
| Max service temperature | not sourced | 92°CsourceHDT 1.8 MPa |
| 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 | Bambu Lab ASA, TDS V3.0, printed specimens X-Y; nozzle 260 °C, bed 80 °C, 200 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing. |
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 and FDM ASA are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS AlSi10Mg Aluminum stronger than FDM ASA?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against tensile strength 37 MPa for FDM ASA (7.3x).
Which is lighter, DMLS AlSi10Mg Aluminum or FDM ASA?
FDM ASA is lighter: 1,050 kg/m³ against 2,670 kg/m³ for DMLS AlSi10Mg Aluminum.
Which is stiffer, DMLS AlSi10Mg Aluminum or FDM ASA?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 2.45 GPa for FDM ASA, so the same part in DMLS AlSi10Mg Aluminum deflects less under the same load.
Which is lighter for the same job, DMLS AlSi10Mg Aluminum or FDM ASA?
For the same stiffness or strength: DMLS AlSi10Mg Aluminum 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 | DMLS AlSi10Mg Aluminum | FDM ASA |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 11.6x heavier |
| Stiff beam (bending) | lighter | 2.13x heavier |
| Stiff panel or plate | lighter | 21% heavier |
| Strong rod or tie | lighter | 2.87x heavier |
| Strong beam | lighter | 48% heavier |
| Strong panel or plate | lighter | 6% 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 FDM ASA?
DMLS AlSi10Mg Aluminum conducts heat better: 110 W/m·K against 0.17 W/m·K for FDM ASA.
Which expands less with temperature?
DMLS AlSi10Mg Aluminum expands less: 20 µm/m·K against 95 µm/m·K for FDM ASA.