Materials / Compare

Aluminum A380 vs. Brass C260

Compare Aluminum A380 vs. Brass C260 strength, stiffness, weight and thermal properties.

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Aluminum A380Cast
Brass C260Wrought
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Mechanical
Yield strength160MPasourcetypical, 25 °C345MPasourcenominal, strip/flat, 0.5% extension (not 0.2% offset)
Ultimate tensile strength320MPasourcetypical, 25 °C427MPasourcenominal, strip/flat
Elongation at break3.5%sourcetypical23%sourcenominal, in 2.0 in., strip/flat
Young's modulus (stiffness)71GPasourcetypical, 25 °C110GPasourcetypical, temper-independent
Density2,713kg/m³sourcetypical at 68 °F8,525kg/m³sourcenominal
Strength to weight59kN·m/kg46% higher40.5kN·m/kg
Stiffness to weight26.2MN·m/kg2.02x 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 sound5,116m/s3,597m/s
Thermal
Thermal conductivity96.2W/m·Ksourcetypical at 68 °F121W/m·Ksourcetypical, 20 °C
Thermal expansion21.8µm/m·Ksourcetypical, 68-572 °F (20-300 °C)20µm/m·Ksourcetypical, mean 20-300 °C
100 mm part over a 50 °C swing109µm growth100µm growth9% less
Specific heat963J/kg·Ksourcetypical at 68 °F377J/kg·Ksourcetypical, 20 °C
Heats up and cools (diffusivity)36.8mm²/s37.7mm²/s2% faster
Thermal shock resistancenot sourced12,510W/m
Melting pointnot sourced916–954°Csourcesolidus-liquidus
Values forA380 aluminium high-pressure die-casting alloy, typical properties; Rheocast Company (aluminium die caster, Germantown WI) A380 alloy data page.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 A380 stronger than Brass C260?

Brass C260 is stronger: its yield strength is 345 MPa against 160 MPa for Aluminum A380 (2.16x).

Which is lighter, Aluminum A380 or Brass C260?

Aluminum A380 is lighter: 2,713 kg/m³ against 8,525 kg/m³ for Brass C260.

Which is stiffer, Aluminum A380 or Brass C260?

Brass C260 is stiffer: Young's modulus 110 GPa against 71 GPa for Aluminum A380, so the same part in Brass C260 deflects less under the same load.

Which is lighter for the same job, Aluminum A380 or Brass C260?

For the same stiffness or strength: Aluminum A380 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.

Part that must beAluminum A380Brass C260
Stiff rod or tie (tension)lighter2.02x heavier
Stiff beam (bending)lighter2.52x heavier
Stiff panel or platelighter2.71x heavier
Strong rod or tielighter46% heavier
Strong beamlighter1.88x heavier
Strong panel or platelighter2.14x heavier

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 A380 or Brass C260?

Brass C260 conducts heat better: 121 W/m·K against 96.2 W/m·K for Aluminum A380.

Which expands less with temperature?

Brass C260 expands less: 20 µm/m·K against 21.8 µm/m·K for Aluminum A380.

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 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum A380Brass 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 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Aluminum A380Brass C260
Strength against density

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