Materials / Compare
Titanium Ti-6Al-4V vs. Wood
Compare Titanium Ti-6Al-4V vs. Wood strength, stiffness, weight and thermal properties.
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|---|---|---|
| Mechanical | ||
| Yield strength | 885MPasourcetypical, plate (>0.187 in), annealed, 0.2% offset | not given (tensile used) |
| Ultimate tensile strength | 940MPasourcetypical, plate, annealed | 99MPasourcemodulus of rupture (no direct tensile value) |
| Compressive strength | not sourced | 46.6MPasourcecompression parallel to grain (maximum crushing strength), 12% MC |
| Flexural strength | not sourced | 99MPasourcemodulus of rupture (static bending), 12% MC |
| Elongation at break | 16%sourcetypical, in 2 in., plate annealed | not sourced |
| Young's modulus (stiffness) | 107–122GPasourcetypical range, 20 °C | 12.5GPasourcebending MOE, parallel to grain |
| Density | 4,430kg/m³sourcenominal | not sourced |
| Strength to weight | 200kN·m/kg | not sourced |
| Stiffness to weight | 25.8MN·m/kg | not sourced |
| Poisson's ratio | 0.342sourcemean of TIMET measurements | 0.35sourcemu_LR (red oak group, ~12% MC) |
| Shear modulus | 42.7GPa9.21x stiffer in shear | 4.63GPa |
| Bulk modulus | 121GPa | 13.9GPa |
| Speed of sound | 5,084m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 6.6W/m·Ksourcetypical, 20 °C, mill annealed | 0.18W/m·Ksourceacross grain, 12% MC (Table 4-7, approximate) |
| Thermal expansion | 9µm/m·Ksourcetypical, mean 0-100 °C | 3.1–4.5µm/m·Ksourceparallel to grain, ovendry wood, range across species |
| 100 mm part over a 50 °C swing | 45µm growth | 19µm growth2.37x less |
| Specific heat | 580J/kg·Ksourcetypical, 20 °C | 1,700J/kg·Ksourcesolid wood (all species), 12% MC, 27 C |
| Heats up and cools (diffusivity) | 2.57mm²/s | not sourced |
| Thermal shock resistance | 3,730W/m15.3x more resistant | 244W/m |
| Melting point | 1,630–1,650°Csourcemelting range | not sourced |
| Max service temperature | 400°Csourceupper recommended use temperature | not sourced |
| Values for | TIMETAL 6-4 (Ti-6Al-4V Grade 5) annealed plate typical (TIMET properties manual) + TIMET datasheet TMC-0150 physical properties | Northern red oak (Quercus rubra), clear straight-grained specimens at 12% MC, parallel to grain unless stated; USDA FPL Wood Handbook FPL-GTR-282 (2021) Ch. 4 and Ch. 5 |
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 Titanium Ti-6Al-4V stronger than Wood?
Titanium Ti-6Al-4V is stronger: its yield strength is 885 MPa against tensile strength 99 MPa for Wood (8.94x).
Which is stiffer, Titanium Ti-6Al-4V or Wood?
Titanium Ti-6Al-4V is stiffer: Young's modulus 115 GPa against 12.5 GPa for Wood, so the same part in Titanium Ti-6Al-4V deflects less under the same load.
Which conducts heat better, Titanium Ti-6Al-4V or Wood?
Titanium Ti-6Al-4V conducts heat better: 6.6 W/m·K against 0.18 W/m·K for Wood.
Which expands less with temperature?
Wood expands less: 3.8 µm/m·K against 9 µm/m·K for Titanium Ti-6Al-4V.