Materials / Compare
SLA Resin Tough 2000 vs. Stainless 304
Compare SLA Resin Tough 2000 vs. Stainless 304 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 | 40.4MPasourcetypical | 241MPasourcetypical, annealed, 70 °F (21 °C) |
| Ultimate tensile strength | 40.4MPasourcetypical | 586MPasourcetypical, annealed, 70 °F (21 °C) |
| Flexural strength | 67MPasourcetypical | not sourced |
| Elongation at break | 79%sourcetypical | 55%sourcetypical, annealed, in 2 in. (50.8 mm) |
| Young's modulus (stiffness) | 1.8GPasourcetypical | 193GPasourcetypical, in tension |
| Density | 1,090kg/m³sourcetypical7.37x lighter | 8,030kg/m³sourcetypical |
| Strength to weight | 37.1kN·m/kg23% higher | 30kN·m/kg |
| Stiffness to weight | 1.65MN·m/kg | 24MN·m/kg14.6x higher |
| Poisson's ratio | not sourced | 0.3sourcedesign value (structural stainless steels) |
| Shear modulus | not sourced | 74.2GPa |
| Bulk modulus | not sourced | 161GPa |
| Speed of sound | 1,285m/s | 4,903m/s |
| Thermal | ||
| Thermal conductivity | not sourced | 16.2W/m·Ksourceat 100 °C |
| Thermal expansion | 134µm/m·Ksourcemean 0-150 °C | 16.9µm/m·Ksourcemean, 0–100 °C |
| 100 mm part over a 50 °C swing | 671µm growth | 84.5µm growth7.94x less |
| Specific heat | not sourced | 500J/kg·Ksourcemean, 0–100 °C |
| Heats up and cools (diffusivity) | not sourced | 4.03mm²/s |
| Thermal shock resistance | not sourced | 838W/m |
| Melting point | not sourced | 1,399–1,454°Csourcemelting range |
| Glass transition | 112°CsourceDMA | not sourced |
| Max service temperature | 57°CsourceHDT 1.8 MPa | 899°Csourcecontinuous, oxidation (scaling) limit in air |
| Values for | 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. | Type 304, annealed flat-rolled (Cleveland-Cliffs 304/304L Product Data Bulletin, May 2021); Poisson's ratio from the Nickel Institute/SCI structural stainless design manual |
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 SLA Resin Tough 2000 stronger than Stainless 304?
Stainless 304 is stronger: its yield strength is 241 MPa against 40.4 MPa for SLA Resin Tough 2000 (5.97x).
Which is lighter, SLA Resin Tough 2000 or Stainless 304?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 8,030 kg/m³ for Stainless 304.
Which is stiffer, SLA Resin Tough 2000 or Stainless 304?
Stainless 304 is stiffer: Young's modulus 193 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Stainless 304 deflects less under the same load.
Which is lighter for the same job, SLA Resin Tough 2000 or Stainless 304?
For the same stiffness or strength: SLA Resin Tough 2000 is lighter for a stiff panel or plate, strong rod or tie, strong beam, strong panel or plate; Stainless 304 is lighter for a stiff rod or tie (tension), stiff beam (bending).
| Part that must be | SLA Resin Tough 2000 | Stainless 304 |
|---|---|---|
| Stiff rod or tie (tension) | 14.6x heavier | lighter |
| Stiff beam (bending) | 41% heavier | lighter |
| Stiff panel or plate | lighter | 1.55x heavier |
| Strong rod or tie | lighter | 23% heavier |
| Strong beam | lighter | 2.24x heavier |
| Strong panel or plate | lighter | 3.02x 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?
Stainless 304 expands less: 16.9 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.