Materials / Compare

Aluminum 1100-O vs. Brass C260

Compare Aluminum 1100-O vs. Brass C260 strength, stiffness, weight and thermal properties.

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Aluminum 1100-OWrought
Brass C260Wrought
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Mechanical
Yield strength35MPasourcetypical, O, 0.0625 in specimen345MPasourcenominal, strip/flat, 0.5% extension (not 0.2% offset)
Ultimate tensile strength90MPasourcetypical, O427MPasourcenominal, strip/flat
Elongation at break35%sourcetypical, O, in 4D23%sourcenominal, in 2.0 in., strip/flat
Young's modulus (stiffness)69GPasourcetypical110GPasourcetypical, temper-independent
Density2,710kg/m³sourcenominal, 20 °C8,525kg/m³sourcenominal
Strength to weight12.9kN·m/kg40.5kN·m/kg3.13x higher
Stiffness to weight25.5MN·m/kg1.97x higher12.9MN·m/kg
Poisson's rationot sourced0.34sourcereference value at room temperature (Wieland-M30 = CuZn30 = C26000, rolled products)
Shear modulusnot sourced41.2GPa
Bulk modulusnot sourced115GPa
Speed of sound5,046m/s3,597m/s
Thermal
Thermal conductivity222W/m·Ksourcetypical, O, 20 °C121W/m·Ksourcetypical, 20 °C
Thermal expansion23.6µm/m·Ksourcetypical, mean 20-100 °C20µm/m·Ksourcetypical, mean 20-300 °C
100 mm part over a 50 °C swing118µm growth100µm growth18% less
Specific heat901J/kg·Ksourcebase material: commercially pure aluminium EN AW-1050A (Hydro), 20 °C377J/kg·Ksourcetypical, 20 °C
Heats up and cools (diffusivity)90.9mm²/s2.41x faster37.7mm²/s
Thermal shock resistancenot sourced12,510W/m
Melting point640–655°Csourcemelting range916–954°Csourcesolidus-liquidus
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).C26000 cartridge brass, H02 half hard flat/strip: CDA Electronic Connector Design Guide (mechanical) + CDA alloy page (physical)

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 Brass C260?

Brass C260 is stronger: its yield strength is 345 MPa against 35 MPa for Aluminum 1100-O (9.86x).

Which is lighter, Aluminum 1100-O or Brass C260?

Aluminum 1100-O is lighter: 2,710 kg/m³ against 8,525 kg/m³ for Brass C260.

Which is stiffer, Aluminum 1100-O or Brass C260?

Brass C260 is stiffer: Young's modulus 110 GPa against 69 GPa for Aluminum 1100-O, so the same part in Brass C260 deflects less under the same load.

Which is lighter for the same job, Aluminum 1100-O or Brass C260?

For the same stiffness or strength: Aluminum 1100-O is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; Brass C260 is lighter for a strong rod or tie, strong beam.

Part that must beAluminum 1100-OBrass C260
Stiff rod or tie (tension)lighter1.97x heavier
Stiff beam (bending)lighter2.49x heavier
Stiff panel or platelighter2.69x heavier
Strong rod or tie3.13x heavierlighter
Strong beam46% heavierlighter
Strong panel or plateabout equalabout equal

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 Brass C260?

Aluminum 1100-O conducts heat better: 222 W/m·K against 121 W/m·K for Brass C260.

Which expands less with temperature?

Brass C260 expands less: 20 µm/m·K against 23.6 µm/m·K for Aluminum 1100-O.

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-4VNickel 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-OBrass C260
Stiffness against density
1k10k101001kDensity (kg/m³)Yield strength (MPa)Plastic PLAPlastic PETGPlastic ABSPlastic TPUPlastic NylonRubberAluminumSteelIronTitaniumSteel 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-4VNickel 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-OBrass C260
Strength against density

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