Materials / Compare
Rubber vs. Titanium Ti-6Al-4V
Compare Rubber vs. Titanium Ti-6Al-4V 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) | 885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset |
| Ultimate tensile strength | 23MPasourcetypical | 940MPasourcetypical, plate, annealed |
| Elongation at break | 830%sourcetypical | 16%sourcetypical, in 2 in., plate annealed |
| Young's modulus (stiffness) | not sourced | 107–122GPasourcetypical range, 20 °C |
| Density | 960kg/m³sourcetypical (specific gravity) | 4,430kg/m³sourcenominal |
| Strength to weight | 24kN·m/kg | 200kN·m/kg8.34x higher |
| Stiffness to weight | not sourced | 25.8MN·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). | 0.342sourcemean of TIMET measurements |
| Shear modulus | not sourced | 42.7GPa |
| Bulk modulus | not sourced | 121GPa |
| Speed of sound | not sourced | 5,084m/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 | 6.6W/m·Ksourcetypical, 20 °C, mill annealed |
| Thermal expansion | not sourced | 9µm/m·Ksourcetypical, mean 0-100 °C |
| 100 mm part over a 50 °C swing | not sourced | 45µm growth |
| Specific heat | 1,881J/kg·Ksourcegovernment (NBS J. Res. 68A, Table 7; values observed for unvulcanized NR by Bekkedahl and Matheson), 25 °C | 580J/kg·Ksourcetypical, 20 °C |
| Heats up and cools (diffusivity) | 0.0836mm²/s | 2.57mm²/s30.7x faster |
| Thermal shock resistance | not sourced | 3,730W/m |
| Melting point | not sourced | 1,630–1,650°Csourcemelting range |
| Max service temperature | 70°Csourcecontinuous use operating range | 400°Csourceupper recommended use temperature |
| Values for | Weir Minerals Linatex Premium rubber (95 % natural rubber), typical physical properties, spec sheet WMD0118/202305 | TIMETAL 6-4 (Ti-6Al-4V Grade 5) annealed plate typical (TIMET properties manual) + TIMET datasheet TMC-0150 physical properties |
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.
Questions
Is Rubber stronger than Titanium Ti-6Al-4V?
Titanium Ti-6Al-4V is stronger: its yield strength is 885 MPa against tensile strength 23 MPa for Rubber (38.5x).
Which is lighter, Rubber or Titanium Ti-6Al-4V?
Rubber is lighter: 960 kg/m³ against 4,430 kg/m³ for Titanium Ti-6Al-4V.
Which is lighter for the same job, Rubber or Titanium Ti-6Al-4V?
For the same stiffness or strength: Titanium Ti-6Al-4V is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Rubber | Titanium Ti-6Al-4V |
|---|---|---|
| Strong rod or tie | 8.34x heavier | lighter |
| Strong beam | 2.47x heavier | lighter |
| Strong panel or plate | 34% heavier | lighter |
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 Titanium Ti-6Al-4V?
Titanium Ti-6Al-4V conducts heat better: 6.6 W/m·K against 0.151 W/m·K for Rubber.