Materials / Compare
DMLS AlSi10Mg Aluminum vs. Plastic LCP GF30
Compare DMLS AlSi10Mg Aluminum vs. Plastic LCP GF30 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 | 115MPasourcetensile strength (ISO 527) |
| Flexural strength | not sourced | 184MPasourcetypical (ISO 178) |
| Elongation at break | 10.2%sourcetypical at break, as manufactured, horizontal | 1.5%sourcetensile elongation (ISO 527) |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | 11.5GPasourcetensile modulus (ISO 527) |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 1,610kg/m³sourcetypical |
| Strength to weight | 101kN·m/kg42% higher | 71.4kN·m/kg |
| Stiffness to weight | 27MN·m/kg3.78x higher | 7.14MN·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 | 2,673m/s |
| Thermal | ||
| Thermal conductivity | 110W/m·Ksourcetypical, as manufactured, horizontal (ISO 22007-2) | 0.5W/m·Ksourcehot disk (ISO 22007-2), temperature not stated |
| Thermal expansion | 20µm/m·Ksourcemean 25-100 °C, ASTM E228 | 20µm/m·Ksourceflow direction (MD), mean 50-150 °C |
| 100 mm part over a 50 °C swing | 100µm growth | 100µm growth |
| Specific heat | 963J/kg·Ksourcebase material: cast Al-Si-Mg alloy 359.0 (MIL-HDBK-5J), at 100 °C | 839J/kg·KsourceASTM E1269, temperature not stated |
| Heats up and cools (diffusivity) | 42.8mm²/s116x faster | 0.37mm²/s |
| Thermal shock resistance | 13,819W/m | not sourced |
| Max service temperature | not sourced | 288°CsourceHDT 1.8 MPa (ISO 75) |
| 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 | Sumitomo Chemical SUMIKASUPER LCP E6006L (30% glass fibre; high strength, low shrinkage); SUMIKASUPER LCP Technical Note, Version 04 / Nov. 2023, typical values. |
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 Plastic LCP GF30?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against tensile strength 115 MPa for Plastic LCP GF30 (2.35x).
Which is lighter, DMLS AlSi10Mg Aluminum or Plastic LCP GF30?
Plastic LCP GF30 is lighter: 1,610 kg/m³ against 2,670 kg/m³ for DMLS AlSi10Mg Aluminum.
Which is stiffer, DMLS AlSi10Mg Aluminum or Plastic LCP GF30?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 11.5 GPa for Plastic LCP GF30, 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 Plastic LCP GF30?
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; Plastic LCP GF30 is lighter for a strong panel or plate.
| Part that must be | DMLS AlSi10Mg Aluminum | Plastic LCP GF30 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 3.78x heavier |
| Stiff beam (bending) | lighter | 1.51x heavier |
| Stiff panel or plate | lighter | 11% heavier |
| Strong rod or tie | lighter | 42% heavier |
| Strong beam | lighter | 7% heavier |
| Strong panel or plate | 8% 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).
Which conducts heat better, DMLS AlSi10Mg Aluminum or Plastic LCP GF30?
DMLS AlSi10Mg Aluminum conducts heat better: 110 W/m·K against 0.5 W/m·K for Plastic LCP GF30.
Which expands less with temperature?
DMLS AlSi10Mg Aluminum expands less: 20 µm/m·K against 20 µm/m·K for Plastic LCP GF30.