Materials / Compare
DMLS AlSi10Mg Aluminum vs. SLA Resin Tough 2000
Compare DMLS AlSi10Mg Aluminum vs. SLA Resin Tough 2000 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 | 40.4MPasourcetypical |
| Ultimate tensile strength | 450MPasourcetypical, as manufactured, horizontal | 40.4MPasourcetypical |
| Flexural strength | not sourced | 67MPasourcetypical |
| Elongation at break | 10.2%sourcetypical at break, as manufactured, horizontal | 79%sourcetypical |
| Young's modulus (stiffness) | 72GPasourcesame material and process, different machine maker: Renishaw RenAM 500, 30 µm, as built, horizontal (XY) | 1.8GPasourcetypical |
| Density | 2,670kg/m³sourcetypical part density (ISO 3369), EOS M 290, AlSi10Mg_030_FlexM291 (30 µm) | 1,090kg/m³sourcetypical |
| Strength to weight | 101kN·m/kg2.73x higher | 37.1kN·m/kg |
| Stiffness to weight | 27MN·m/kg16.3x higher | 1.65MN·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 | 1,285m/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 | 134µm/m·Ksourcemean 0-150 °C |
| 100 mm part over a 50 °C swing | 100µm growth6.71x less | 671µm 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 |
| Glass transition | not sourced | 112°CsourceDMA |
| Max service temperature | not sourced | 57°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 | Formlabs Tough 2000 Resin V2 (FLTO2002), TDS Rev. 01 10/06/2025; printed on Form 4 at 100 µm, washed in Form Wash V2 10+5 min in >=99% IPA, post-cured 70 °C for 12 min in Form Cure V2. Orientation not stated. |
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 SLA Resin Tough 2000 are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is DMLS AlSi10Mg Aluminum stronger than SLA Resin Tough 2000?
DMLS AlSi10Mg Aluminum is stronger: its yield strength is 270 MPa against 40.4 MPa for SLA Resin Tough 2000 (6.68x).
Which is lighter, DMLS AlSi10Mg Aluminum or SLA Resin Tough 2000?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 2,670 kg/m³ for DMLS AlSi10Mg Aluminum.
Which is stiffer, DMLS AlSi10Mg Aluminum or SLA Resin Tough 2000?
DMLS AlSi10Mg Aluminum is stiffer: Young's modulus 72 GPa against 1.8 GPa for SLA Resin Tough 2000, 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 SLA Resin Tough 2000?
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 | SLA Resin Tough 2000 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 16.3x heavier |
| Stiff beam (bending) | lighter | 2.58x heavier |
| Stiff panel or plate | lighter | 40% heavier |
| Strong rod or tie | lighter | 2.73x heavier |
| Strong beam | lighter | 45% 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 expands less with temperature?
DMLS AlSi10Mg Aluminum expands less: 20 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.
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