Materials / Compare
DMLS AlSi10Mg Aluminum vs. FDM PAHT-CF
Compare DMLS AlSi10Mg Aluminum vs. FDM PAHT-CF 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 | 92MPasourcetypical |
| Flexural strength | not sourced | 125MPasourcetypical |
| Elongation at break | 10.2%sourcetypical at break, as manufactured, horizontal | 8.4%sourcetypical |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | 3.86GPasourcetypical |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 1,060kg/m³sourcetypical |
| Strength to weight | 101kN·m/kg17% higher | 86.8kN·m/kg |
| Stiffness to weight | 27MN·m/kg7.41x higher | 3.64MN·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 | 1,908m/s |
| Thermal | ||
| Thermal conductivity | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) | not sourced |
| 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 | not sourced |
| Heats up and cools (diffusivity) | 42.8mm²/s | not sourced |
| Thermal shock resistance | 13,819W/m | not sourced |
| Melting point | not sourced | 225°Csourcetypical |
| Glass transition | not sourced | 70°Csourcetypical |
| Max service temperature | not sourced | 170°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 PAHT-CF, TDS V3.0, printed specimens X-Y, dry state; nozzle 290 °C, bed 100 °C, 100 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 PAHT-CF are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS AlSi10Mg Aluminum stronger than FDM PAHT-CF?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against tensile strength 92 MPa for FDM PAHT-CF (2.93x).
Which is lighter, DMLS AlSi10Mg Aluminum or FDM PAHT-CF?
FDM PAHT-CF is lighter: 1,060 kg/m³ against 2,670 kg/m³ for DMLS AlSi10Mg Aluminum.
Which is stiffer, DMLS AlSi10Mg Aluminum or FDM PAHT-CF?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 3.86 GPa for FDM PAHT-CF, 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 PAHT-CF?
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; FDM PAHT-CF is lighter for a strong beam, strong panel or plate.
| Part that must be | DMLS AlSi10Mg Aluminum | FDM PAHT-CF |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 7.41x heavier |
| Stiff beam (bending) | lighter | 1.71x heavier |
| Stiff panel or plate | lighter | 5% heavier |
| Strong rod or tie | lighter | 17% heavier |
| Strong beam | 23% heavier | lighter |
| Strong panel or plate | 47% heavier | lighter |
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).