Materials / Compare
Nickel Inconel 718 vs. Wood
Compare Nickel Inconel 718 vs. Wood 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 | 1,207MPasourcetypical, 1.0 in. hot-rolled bar, 0.2% offset | not given (tensile used) |
| Ultimate tensile strength | 1,389MPasourcetypical, 1.0 in. bar | 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 | 20%sourcetypical, 1.0 in. bar | not sourced |
| Young's modulus (stiffness) | 200GPasourcetypical, 21 °C, annealed + aged | 12.5GPasourcebending MOE, parallel to grain |
| Density | 8,221kg/m³sourcenominal, annealed and aged | not sourced |
| Strength to weight | 147kN·m/kg | not sourced |
| Stiffness to weight | 24.3MN·m/kg | not sourced |
| Poisson's ratio | 0.294sourcetypical, 21 °C, annealed + aged | 0.35sourcemu_LR (red oak group, ~12% MC) |
| Shear modulus | 77.3GPa16.7x stiffer in shear | 4.63GPa |
| Bulk modulus | 162GPa | 13.9GPa |
| Speed of sound | 4,932m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 11.4W/m·Ksourcetypical, 21 °C, annealed + aged (calculated from resistivity per footnote a) | 0.18W/m·Ksourceacross grain, 12% MC (Table 4-7, approximate) |
| Thermal expansion | 13.2µm/m·Ksourcetypical, mean 21-93 °C, annealed + aged | 3.1–4.5µm/m·Ksourceparallel to grain, ovendry wood, range across species |
| 100 mm part over a 50 °C swing | 66µm growth | 19µm growth3.47x less |
| Specific heat | 435J/kg·Ksourcetypical, 21 °C | 1,700J/kg·Ksourcesolid wood (all species), 12% MC, 27 C |
| Heats up and cools (diffusivity) | 3.19mm²/s | not sourced |
| Thermal shock resistance | 3,680W/m15.1x more resistant | 244W/m |
| Melting point | 1,260–1,336°Csourcemelting range | not sourced |
| Max service temperature | 704°Csourceupper use temperature stated by producer | not sourced |
| Values for | INCONEL alloy 718, standard grade, 1750 °F/1 hr anneal + 1325 °F/8 hr F.C. to 1150 °F aged; Special Metals bulletin SMC-045 typical values | 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 Nickel Inconel 718 stronger than Wood?
Nickel Inconel 718 is stronger: its yield strength is 1,207 MPa against tensile strength 99 MPa for Wood (12.2x).
Which is stiffer, Nickel Inconel 718 or Wood?
Nickel Inconel 718 is stiffer: Young's modulus 200 GPa against 12.5 GPa for Wood, so the same part in Nickel Inconel 718 deflects less under the same load.
Which conducts heat better, Nickel Inconel 718 or Wood?
Nickel Inconel 718 conducts heat better: 11.4 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 13.2 µm/m·K for Nickel Inconel 718.