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Aluminum 1100-O vs. Rubber

Compare Aluminum 1100-O vs. Rubber strength, stiffness, weight and thermal properties.

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Aluminum 1100-OWrought
RubberBulk polymer (molded or machined)
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Mechanical
Yield strength35MPasourcetypical, O, 0.0625 in specimennot given (tensile used)
Ultimate tensile strength90MPasourcetypical, O23MPasourcetypical
Elongation at break35%sourcetypical, O, in 4D830%sourcetypical
Young's modulus (stiffness)69GPasourcetypicalnot sourced
Density2,710kg/m³sourcenominal, 20 °C960kg/m³sourcetypical (specific gravity)
Strength to weight12.9kN·m/kg24kN·m/kg1.86x higher
Stiffness to weight25.5MN·m/kgnot sourced
Poisson's rationot sourced0.5sourcegovernment (NBS J. Res. 68A, 1964): computed by NBS for peroxide-cured gum NR vulcanizate, 25 °C, infinitesimal deformation0.49 in the solver: the linear element locks as the ratio nears 0.5 (nearly incompressible).
Shear modulusnot sourcednot sourced
Bulk modulusnot sourcednot sourced
Speed of sound5,046m/snot sourced
Thermal
Thermal conductivity222W/m·Ksourcetypical, O, 20 °C0.151W/m·Ksourcegovernment selected value (US Army Natick Laboratories TR 66-49-PR, 1966), soft vulcanized natural rubber, 25 °C
Thermal expansion23.6µm/m·Ksourcetypical, mean 20-100 °Cnot sourced
100 mm part over a 50 °C swing118µm growthnot sourced
Specific heat901J/kg·Ksourcebase material: commercially pure aluminium EN AW-1050A (Hydro), 20 °C1,881J/kg·Ksourcegovernment (NBS J. Res. 68A, Table 7; values observed for unvulcanized NR by Bekkedahl and Matheson), 25 °C
Heats up and cools (diffusivity)90.9mm²/s1,087x faster0.0836mm²/s
Thermal shock resistancenot sourcednot sourced
Melting point640–655°Csourcemelting rangenot sourced
Max service temperaturenot sourced70°Csourcecontinuous use operating range
Values for1100-O (annealed) commercially pure aluminium, Kaiser Aluminum Tube & Pipe Alloy 1100 Technical Data (Rev. 05/06), typical properties; specific heat from Hydro EN AW-1050A (99.5% Al) extruded-products datasheet (10/2018).Weir Minerals Linatex Premium rubber (95 % natural rubber), typical physical properties, spec sheet WMD0118/202305

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 1100-O stronger than Rubber?

Aluminum 1100-O is stronger: its yield strength is 35 MPa against tensile strength 23 MPa for Rubber (1.52x).

Which is lighter, Aluminum 1100-O or Rubber?

Rubber is lighter: 960 kg/m³ against 2,710 kg/m³ for Aluminum 1100-O.

Which is lighter for the same job, Aluminum 1100-O or Rubber?

For the same stiffness or strength: Rubber is lighter for a strong rod or tie, strong beam, strong panel or plate.

Part that must beAluminum 1100-ORubber
Strong rod or tie1.86x heavierlighter
Strong beam2.13x heavierlighter
Strong panel or plate2.29x heavierlighter

For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).

Which conducts heat better, Aluminum 1100-O or Rubber?

Aluminum 1100-O conducts heat better: 222 W/m·K against 0.151 W/m·K for Rubber.

Among 72 materials

1k10k0.1110100Density (kg/m³)Young's modulus (GPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium 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 SteelPCB Laminate FR-4SiliconCeramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum 1100-O
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonAluminumSteelIronTitaniumSteel AISI 1018Stainless Steel 304Stainless Steel 316Aluminum 6061-T6Aluminum 7075-T6Brass C360Copper C110GlassSteel AISI 1045Steel AISI 4340Steel A992Stainless Steel 303Stainless Steel 17-4PHAluminum 2024-T351Aluminum 5052-H32Aluminum 7050-T7451Titanium 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 SteelBrickPCB Laminate FR-4SiliconCeramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum 1100-ORubber
Strength against density

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