Materials / Wood
Wood
Wood (red oak) strength, stiffness, density and thermal properties, with their source.
A bracket in Wood, natural grain finish.
| Process | Natural |
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| Mechanical |
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| Yield strength | not given (tensile used) |
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| Ultimate tensile strength | 99MPasourcemodulus of rupture (no direct tensile value) |
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| Compressive strength | 46.6MPasourcecompression parallel to grain (maximum crushing strength), 12% MC |
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| Flexural strength | 99MPasourcemodulus of rupture (static bending), 12% MC |
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| Elongation at break | not sourced |
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| Young's modulus (stiffness) | 12.5GPasourcebending MOE, parallel to grain |
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| Density | not sourced |
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| Strength to weight | not sourced |
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| Stiffness to weight | not sourced |
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| Poisson's ratio | 0.35sourcemu_LR (red oak group, ~12% MC) |
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| Shear modulus | 4.63GPa |
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| Bulk modulus | 13.9GPa |
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| Speed of sound | not sourced |
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| Thermal |
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| Thermal conductivity | 0.18W/m·Ksourceacross grain, 12% MC (Table 4-7, approximate) |
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| Thermal expansion | 3.1–4.5µm/m·Ksourceparallel to grain, ovendry wood, range across species |
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| 100 mm part over a 50 °C swing | 19µm growth |
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| Specific heat | 1,700J/kg·Ksourcesolid wood (all species), 12% MC, 27 C |
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| Heats up and cools (diffusivity) | not sourced |
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| Thermal shock resistance | 244W/m |
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| Values for | 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 |
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Among 72 materials
Stiffness against densityStrength against density