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Aluminum 7050-T7451 vs. Plywood

Compare Aluminum 7050-T7451 vs. Plywood strength, stiffness, weight and thermal properties.

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Aluminum 7050-T7451Wrought
PlywoodNatural
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Mechanical
Yield strength469MPasourcetypical, longitudinal, 0.2% offsetnot given (tensile used)
Ultimate tensile strength524MPasourcetypical, longitudinal41.4MPasourcemodulus of rupture (no direct tensile value)
Flexural strengthnot sourced41.4MPasourcestatic bending MOR (Douglas-fir); range 33.72-42.61 across species
Elongation at break11%sourcetypical, longitudinalnot sourced
Young's modulus (stiffness)70.3GPasourcetypical7.45GPasourcestatic bending MOE of the panel (Douglas-fir); range 6.96-8.55 across species
Density2,830kg/m³sourcenominalnot sourced
Strength to weight166kN·m/kgnot sourced
Stiffness to weight24.8MN·m/kgnot sourced
Poisson's ratio0.33sourcetypical (handbook physical constant)not sourced
Shear modulus26.4GPanot sourced
Bulk modulus68.9GPanot sourced
Speed of sound4,984m/snot sourced
Thermal
Thermal conductivity157W/m·Ksourcetypical, 20 °C0.12W/m·KsourceAPA-recommended design value (Douglas-fir plywood), as reported by FPL/ORNL
Thermal expansion23.5µm/m·Ksourcetypical, mean 20-100 °C3.1–4.5µm/m·Ksourcebase material: solid wood parallel to grain, ovendry, range across species
100 mm part over a 50 °C swing118µm growth19µm growth6.18x less
Specific heat860J/kg·Ksourcetypical, at 100 °C1,700J/kg·Ksourcebase material: solid wood (all species), 12% MC, 27 C
Heats up and cools (diffusivity)64.5mm²/snot sourced
Thermal shock resistance29,862W/mnot sourced
Melting point524–635°Csourcemelting rangenot sourced
Values for7050-T7451 plate, Kaiser Aluminum sheet, coil & plate typical datasheet (longitudinal); Poisson from MIL-HDBK-5JDouglas-fir plywood sheathing (construction plywood per PS 1), static bending properties from USDA FPL Wood Handbook FPL-GTR-282 Ch. 12 Table 12-2 (Biblis 2000)

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 Aluminum 7050-T7451 stronger than Plywood?

Aluminum 7050-T7451 is stronger: its yield strength is 469 MPa against tensile strength 41.4 MPa for Plywood (11.3x).

Which is stiffer, Aluminum 7050-T7451 or Plywood?

Aluminum 7050-T7451 is stiffer: Young's modulus 70.3 GPa against 7.45 GPa for Plywood, so the same part in Aluminum 7050-T7451 deflects less under the same load.

Which conducts heat better, Aluminum 7050-T7451 or Plywood?

Aluminum 7050-T7451 conducts heat better: 157 W/m·K against 0.12 W/m·K for Plywood.

Which expands less with temperature?

Plywood expands less: 3.8 µm/m·K against 23.5 µm/m·K for Aluminum 7050-T7451.

Among 59 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless 304Stainless 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless 303Stainless 17-4PHAluminum 2024-T351Aluminum 5052-H32Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelAluminum 7050-T7451
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel AISI 1018Stainless 304Stainless 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless 303Stainless 17-4PHAluminum 2024-T351Aluminum 5052-H32Titanium Ti-6Al-4VBrass C260Nickel Inconel 718Magnesium AZ31B-H24Zinc Zamak 3Plastic ABS (bulk/injection)Plastic PolycarbonatePlastic POM/AcetalPlastic Nylon PA6Plastic Nylon PA66Plastic PEEKPlastic PTFEPlastic UHMWPEPlastic HDPEPlastic PolypropylenePlastic PMMAFDM ASAFDM PolycarbonateFDM PAHT-CFFDM HIPSSLA Resin Tough 2000SLA Resin Elastic 50ASLS PA12 NylonDMLS AlSi10Mg AluminumDMLS Ti-6Al-4V ELI TitaniumDMLS 316L Stainless SteelDMLS 17-4PH Stainless SteelBrickAluminum 7050-T7451
Strength against density

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