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Aluminum 7050-T7451 vs. Concrete

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

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Aluminum 7050-T7451Wrought
ConcreteCast
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Mechanical
Yield strength469MPasourcetypical, longitudinal, 0.2% offsetnot sourced
Ultimate tensile strength524MPasourcetypical, longitudinalnot sourced
Compressive strengthnot sourced27.6MPasourcespecified compressive strength class (f'c), not a measured typical
Elongation at break11%sourcetypical, longitudinalnot sourced
Young's modulus (stiffness)70.3GPasourcetypicalnot sourced
Density2,830kg/m³sourcenominal2,240–2,400kg/m³sourcerange for normalweight concrete
Strength to weight166kN·m/kgnot sourced
Stiffness to weight24.8MN·m/kgnot sourced
Poisson's ratio0.33sourcetypical (handbook physical constant)0.15–0.2sourcegeneral range at normal ambient conditions (overall 0.11-0.32)
Shear modulus26.4GPanot sourced
Bulk modulus68.9GPanot sourced
Speed of sound4,984m/snot sourced
Thermal
Thermal conductivity157W/m·Ksourcetypical, 20 °C0.9W/m·Ksourcetypical (comparative value)
Thermal expansion23.5µm/m·Ksourcetypical, mean 20-100 °C8–12µm/m·Ksourcetypical range for portland cement concrete (aggregate dependent)
100 mm part over a 50 °C swing118µm growth50µm growth2.35x less
Specific heat860J/kg·Ksourcetypical, at 100 °C900J/kg·Ksourcetypical (NIST guidance for thermal analysis)
Heats up and cools (diffusivity)64.5mm²/s150x faster0.431mm²/s
Thermal shock resistance29,862W/mnot sourced
Melting point524–635°Csourcemelting rangenot sourced
Max service temperaturenot sourced65°Csourcecode long-term temperature limit (ASME Code, concrete containments)
Values for7050-T7451 plate, Kaiser Aluminum sheet, coil & plate typical datasheet (longitudinal); Poisson from MIL-HDBK-5JNormal-weight portland cement concrete, strength class f'c = 4000 psi (28 MPa) per NRMCA CIP 35; density NRMCA CIP 36; thermal conductivity USDA FPL Wood Handbook; service temperature ORNL/NRC review

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

Which is lighter, Aluminum 7050-T7451 or Concrete?

Concrete is lighter: 2,320 kg/m³ against 2,830 kg/m³ for Aluminum 7050-T7451.

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

Aluminum 7050-T7451 conducts heat better: 157 W/m·K against 0.9 W/m·K for Concrete.

Which expands less with temperature?

Concrete expands less: 10 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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