Materials / Compare
SLA Resin Tough 2000 vs. Stainless 303
Compare SLA Resin Tough 2000 vs. Stainless 303 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 | 275MPasourceOutokumpu typical (product P = hot rolled plate, transverse) |
| Ultimate tensile strength | 40.4MPasourcetypical | 585MPasourceOutokumpu typical |
| Flexural strength | 67MPasourcetypical | not sourced |
| Elongation at break | 79%sourcetypical | 35%sourceOutokumpu typical, A5 |
| Young's modulus (stiffness) | 1.8GPasourcetypical | 200GPasourceat RT (Table 12) |
| Density | 1,090kg/m³sourcetypical | 7,900kg/m³sourceat RT |
| Strength to weight | 37.1kN·m/kg6% higher | 34.8kN·m/kg |
| Stiffness to weight | 1.65MN·m/kg | 25.3MN·m/kg15.3x higher |
| Poisson's ratio | not sourced | 0.3sourcedesign value (structural stainless steels) |
| Shear modulus | not sourced | 76.9GPa |
| Bulk modulus | not sourced | 167GPa |
| Speed of sound | 1,285m/s | 5,032m/s |
| Thermal | ||
| Thermal conductivity | not sourced | 15W/m·Ksourceat RT |
| Thermal expansion | 134µm/m·Ksourcemean 0-150 °C | 16µm/m·Ksourcemean, 20–100 °C |
| 100 mm part over a 50 °C swing | 671µm growth | 80µm growth8.39x less |
| Specific heat | not sourced | 500J/kg·Ksourceat RT |
| Heats up and cools (diffusivity) | not sourced | 3.8mm²/s |
| Thermal shock resistance | not sourced | 902W/m |
| Glass transition | 112°CsourceDMA | not sourced |
| Max service temperature | 57°CsourceHDT 1.8 MPa | 871°Csourcecontinuous, scaling limit |
| 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. | 1.4305 / UNS S30300, Outokumpu typical values (hot rolled, solution annealed) from 'Steel Grades, Properties and Global Standards'; max service from Carpenter CarTech 303 datasheet |
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 303?
Stainless 303 is stronger: its yield strength is 275 MPa against 40.4 MPa for SLA Resin Tough 2000 (6.81x).
Which is lighter, SLA Resin Tough 2000 or Stainless 303?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 7,900 kg/m³ for Stainless 303.
Which is stiffer, SLA Resin Tough 2000 or Stainless 303?
Stainless 303 is stiffer: Young's modulus 200 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Stainless 303 deflects less under the same load.
Which is lighter for the same job, SLA Resin Tough 2000 or Stainless 303?
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 303 is lighter for a stiff rod or tie (tension), stiff beam (bending).
| Part that must be | SLA Resin Tough 2000 | Stainless 303 |
|---|---|---|
| Stiff rod or tie (tension) | 15.3x heavier | lighter |
| Stiff beam (bending) | 45% heavier | lighter |
| Stiff panel or plate | lighter | 1.51x heavier |
| Strong rod or tie | lighter | 6% heavier |
| Strong beam | lighter | 2.02x heavier |
| Strong panel or plate | lighter | 2.78x 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 303 expands less: 16 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.