Materials / Compare
Aluminum vs. SLA Resin Tough 2000
Compare 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 | 276MPasourcetypical, 0.2% offset, .500 in dia specimen | 40.4MPasourcetypical |
| Ultimate tensile strength | 310MPasourcetypical7.67x stronger | 40.4MPasourcetypical |
| Flexural strength | not sourced | 67MPasourcetypical |
| Elongation at break | 17%sourcetypical, in 4D, 0.500 in dia specimen | 79%sourcetypical |
| Young's modulus (stiffness) | 68.3GPasourcetypical37.9x stiffer | 1.8GPasourcetypical |
| Density | 2,700kg/m³sourcenominal | 1,090kg/m³sourcetypical |
| Strength to weight | 102kN·m/kg2.76x higher | 37.1kN·m/kg |
| Stiffness to weight | 25.3MN·m/kg15.3x higher | 1.65MN·m/kg |
| Poisson's ratio | 0.33sourcetypical (handbook physical constant) | not sourced |
| Shear modulus | 25.7GPa | not sourced |
| Bulk modulus | 67GPa | not sourced |
| Speed of sound | 5,030m/s | 1,285m/s |
| Thermal | ||
| Thermal conductivity | 167W/m·Ksourcetypical, 20 °C | not sourced |
| Thermal expansion | 23.6µm/m·Ksourcetypical, mean 20-100 °C | 134µm/m·Ksourcemean 0-150 °C |
| 100 mm part over a 50 °C swing | 118µm growth5.69x less | 671µm growth |
| Specific heat | 896J/kg·Ksourcetypical, at 100 °C | not sourced |
| Heats up and cools (diffusivity) | 69mm²/s | not sourced |
| Thermal shock resistance | 19,159W/m | not sourced |
| Melting point | 582–652°Csourcesolidus-liquidus | not sourced |
| Glass transition | not sourced | 112°CsourceDMA |
| Max service temperature | not sourced | 57°CsourceHDT 1.8 MPa |
| Values for | 6061-T6/T651, Kaiser Aluminum typical properties (sheet, coil & plate datasheet); Poisson from MIL-HDBK-5J | 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.
SLA Resin Tough 2000 is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Aluminum stronger than SLA Resin Tough 2000?
Aluminum is stronger: its yield strength is 276 MPa against 40.4 MPa for SLA Resin Tough 2000 (6.83x).
Which is lighter, Aluminum or SLA Resin Tough 2000?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 2,700 kg/m³ for Aluminum.
Which is stiffer, Aluminum or SLA Resin Tough 2000?
Aluminum is stiffer: Young's modulus 68.3 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Aluminum deflects less under the same load.
Which is lighter for the same job, Aluminum or SLA Resin Tough 2000?
For the same stiffness or strength: 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 | Aluminum | SLA Resin Tough 2000 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 15.3x heavier |
| Stiff beam (bending) | lighter | 2.49x heavier |
| Stiff panel or plate | lighter | 36% heavier |
| Strong rod or tie | lighter | 2.76x 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?
Aluminum expands less: 23.6 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.