Materials / Compare
Rubber vs. DMLS 316L Stainless Steel
Compare Rubber vs. DMLS 316L Stainless Steel 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 | not given (tensile used) | 530MPasourcetypical, as manufactured, horizontal |
| Ultimate tensile strength | 23MPasourcetypical | 640MPasourcetypical, as manufactured, horizontal |
| Elongation at break | 830%sourcetypical | 40%sourcetypical at break, as manufactured, horizontal |
| Young's modulus (stiffness) | not sourced | 185GPasourcetypical, as built, horizontal (XY); EOSINT M280-400W / M290-400W, 316L_Surface 1.0, 20 µm (2014 sheet) |
| Density | 960kg/m³sourcetypical (specific gravity) | 7,900kg/m³sourcepart density (ISO 3369, not labelled min or typical), EOS M 290, 40 µm FlexLine |
| Strength to weight | 24kN·m/kg | 67.1kN·m/kg2.8x higher |
| Stiffness to weight | not sourced | 23.4MN·m/kg |
| Poisson's ratio | 0.5sourcegovernment (NBS J. Res. 68A, 1964): computed by NBS for peroxide-cured gum NR vulcanizate, 25 °C, infinitesimal deformation0.49 in the solver: the linear element locks as the ratio nears 0.5 (nearly incompressible). | 0.3sourcebase material: austenitic stainless steels incl. 1.4404 (316L), design value |
| Shear modulus | not sourced | 71.2GPa |
| Bulk modulus | not sourced | 154GPa |
| Speed of sound | not sourced | 4,839m/s |
| Thermal | ||
| Thermal conductivity | 0.151W/m·Ksourcegovernment selected value (US Army Natick Laboratories TR 66-49-PR, 1966), soft vulcanized natural rubber, 25 °C | 16.2W/m·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), at 100 °C |
| Thermal expansion | not sourced | 15.7µm/m·Ksourcemean 25-100 °C, ASTM E228 |
| 100 mm part over a 50 °C swing | not sourced | 78.6µm growth |
| Specific heat | 1,881J/kg·Ksourcegovernment (NBS J. Res. 68A, Table 7; values observed for unvulcanized NR by Bekkedahl and Matheson), 25 °C | 500J/kg·Ksourcebase material: wrought 316/316L (Cleveland-Cliffs), 0-100 °C |
| Heats up and cools (diffusivity) | 0.0836mm²/s | 4.1mm²/s49x faster |
| Thermal shock resistance | not sourced | 2,067W/m |
| Max service temperature | 70°Csourcecontinuous use operating range | not sourced |
| Values for | Weir Minerals Linatex Premium rubber (95 % natural rubber), typical physical properties, spec sheet WMD0118/202305 | EOS StainlessSteel 316L (powder 9011-0032), EOS M 290, ParameterSet 316L 20µm Surface M290/400W, as manufactured, horizontal; ISO 6892-1 |
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 316L Stainless Steel is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Rubber stronger than DMLS 316L Stainless Steel?
DMLS 316L Stainless Steel is stronger: its yield strength is 530 MPa against tensile strength 23 MPa for Rubber (23x).
Which is lighter, Rubber or DMLS 316L Stainless Steel?
Rubber is lighter: 960 kg/m³ against 7,900 kg/m³ for DMLS 316L Stainless Steel.
Which is lighter for the same job, Rubber or DMLS 316L Stainless Steel?
For the same stiffness or strength: Rubber is lighter for a strong beam, strong panel or plate; DMLS 316L Stainless Steel is lighter for a strong rod or tie.
| Part that must be | Rubber | DMLS 316L Stainless Steel |
|---|---|---|
| Strong rod or tie | 2.8x heavier | lighter |
| Strong beam | lighter | 2% heavier |
| Strong panel or plate | lighter | 1.71x 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 conducts heat better, Rubber or DMLS 316L Stainless Steel?
DMLS 316L Stainless Steel conducts heat better: 16.2 W/m·K against 0.151 W/m·K for Rubber.