Materials / Compare

Brass C260 vs. Silicon

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

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Brass C260Wrought
SiliconGrown single crystal
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Mechanical
Yield strength345MPasourcenominal, strip/flat, 0.5% extension (not 0.2% offset)not given (tensile used)
Ultimate tensile strength427MPasourcenominal, strip/flat130MPasourcemodulus of rupture (bending fracture stress); brittle, no yield point
Flexural strengthnot sourced130MPasourcemodulus of rupture
Elongation at break23%sourcenominal, in 2.0 in., strip/flatnot sourced
Young's modulus (stiffness)110GPasourcetypical, temper-independent131GPasourcetypical (single quoted value of an anisotropic crystal)
Density8,525kg/m³sourcenominal2,329kg/m³sourcetypical
Strength to weight40.5kN·m/kg55.8kN·m/kg38% higher
Stiffness to weight12.9MN·m/kg56.2MN·m/kg4.35x higher
Poisson's ratio0.34sourcereference value at room temperature (Wieland-M30 = CuZn30 = C26000, rolled products)0.221sourcetypical
Shear modulus41.2GPa53.6GPa30% stiffer in shear
Bulk modulus115GPa78.3GPa
Speed of sound3,597m/s7,500m/s
Thermal
Thermal conductivity121W/m·Ksourcetypical, 20 °C163W/m·Ksourcetypical at 313 K (40 °C)
Thermal expansion20µm/m·Ksourcetypical, mean 20-300 °C2.62µm/m·Ksourcetypical at 300 K
100 mm part over a 50 °C swing100µm growth13.1µm growth7.63x less
Specific heat377J/kg·Ksourcetypical, 20 °C732J/kg·Ksourcetypical
Heats up and cools (diffusivity)37.7mm²/s95.6mm²/s2.53x faster
Thermal shock resistance12,510W/m48,095W/m3.84x more resistant
Melting point916–954°Csourcesolidus-liquidus1,412°Csourcetypical
Max service temperaturenot sourced300°Csourceproducer's maximum application temperature (optical components)
Values forC26000 cartridge brass, H02 half hard flat/strip: CDA Electronic Connector Design Guide (mechanical) + CDA alloy page (physical)Synthetic single-crystal silicon (cubic, diamond structure), Korth Kristalle (crystal grower) material data; Korth usually supplies Floating Zone (FZ) material, Czochralski (Cz) also offered. Silicon is elastically anisotropic; the producer quotes one modulus and the solver is isotropic.

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 Brass C260 stronger than Silicon?

Brass C260 is stronger: its yield strength is 345 MPa against tensile strength 130 MPa for Silicon (2.65x).

Which is lighter, Brass C260 or Silicon?

Silicon is lighter: 2,329 kg/m³ against 8,525 kg/m³ for Brass C260.

Which is stiffer, Brass C260 or Silicon?

Silicon is stiffer: Young's modulus 131 GPa against 110 GPa for Brass C260, so the same part in Silicon deflects less under the same load.

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

For the same stiffness or strength: Silicon 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 beBrass C260Silicon
Stiff rod or tie (tension)4.35x heavierlighter
Stiff beam (bending)3.99x heavierlighter
Stiff panel or plate3.88x heavierlighter
Strong rod or tie38% heavierlighter
Strong beam1.91x heavierlighter
Strong panel or plate2.25x 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, Brass C260 or Silicon?

Silicon conducts heat better: 163 W/m·K against 121 W/m·K for Brass C260.

Which expands less with temperature?

Silicon expands less: 2.62 µm/m·K against 20 µm/m·K for Brass C260.

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-4Ceramic Alumina 96%Ceramic Aluminum NitrideAluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Brass C260Silicon
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-4Ceramic Alumina 96%Aluminum A380Aluminum 6063-T6Aluminum 1100-OAluminum ADC12Magnesium AZ91DSolder SAC305Plastic PBT GF30Plastic PPS GF40Plastic LCP GF30Brass C260Silicon
Strength against density

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