Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
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C10100 Alloy (copper.org)Copper Development Associationarchived copyCopper C10100 · Yield strength: typical, 0.5% extension under load, 0.04 in. flatCopper C10100 · Ultimate tensile strength: typical, 0.04 in. flatCopper C10100 · Elongation at break: typical, 0.04 in. flatCopper C10100 · Young's modulus (stiffness): typicalCopper C10100 · Density: nominalCopper C10100 · Thermal conductivity: typical, 20 °CCopper C10100 · Thermal expansion: typical, mean 20-100 °CCopper C10100 · Specific heat: typical, 20 °CCopper C10100 · Melting point: melting point (liquidus = solidus, pure copper)
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TIMETAL 6-4 PropertiesTIMETarchived copyTitanium Ti-6Al-4V · Yield strength: typical, plate (>0.187 in), annealed, 0.2% offsetTitanium Ti-6Al-4V · Ultimate tensile strength: typical, plate, annealedTitanium Ti-6Al-4V · Elongation at break: typical, in 2 in., plate annealedTitanium Ti-6Al-4V · Density: nominalTitanium Ti-6Al-4V · Poisson's ratio: mean of TIMET measurementsTitanium Ti-6Al-4V · Melting point: melting rangeTitanium Ti-6Al-4V · Max service temperature: upper recommended use temperature
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TIMETAL 6-4 Data SheetTIMETarchived copyTitanium Ti-6Al-4V · Young's modulus (stiffness): typical range, 20 °CTitanium Ti-6Al-4V · Thermal conductivity: typical, 20 °C, mill annealedTitanium Ti-6Al-4V · Thermal expansion: typical, mean 0-100 °CTitanium Ti-6Al-4V · Specific heat: typical, 20 °C
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Wieland-K09 (Cu-OFE, C10100) Data SheetWielandCopper C10100 · Poisson's ratio: reference value at room temperature (Wieland-K09 = Cu-OFE = C10100, rolled products)
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Questions
Mechanical
Is Copper C10100 stronger than Titanium Ti-6Al-4V?
Titanium Ti-6Al-4V is stronger: its yield strength is 885 MPa against 69 MPa for Copper C10100 (12.8x).
Which is lighter, Copper C10100 or Titanium Ti-6Al-4V?
Titanium Ti-6Al-4V is lighter: 4,430 kg/m³ against 8,941 kg/m³ for Copper C10100.
Which is stiffer, Copper C10100 or Titanium Ti-6Al-4V?
Copper C10100 is stiffer: Young's modulus 117 GPa against 115 GPa for Titanium Ti-6Al-4V, so the same part in Copper C10100 deflects less under the same load.
Which is lighter for the same job, Copper C10100 or Titanium Ti-6Al-4V?
For the same stiffness or strength: Titanium Ti-6Al-4V 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 be
Copper C10100
Titanium Ti-6Al-4V
Stiff rod or tie (tension)
1.97x heavier
lighter
Stiff beam (bending)
1.99x heavier
lighter
Stiff panel or plate
2x heavier
lighter
Strong rod or tie
25.9x heavier
lighter
Strong beam
11.1x heavier
lighter
Strong panel or plate
7.23x heavier
lighter
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 is more ductile, Copper C10100 or Titanium Ti-6Al-4V?
Copper C10100 stretches further before it breaks: 45% elongation at break against 16% for Titanium Ti-6Al-4V.
Thermal
Which conducts heat better, Copper C10100 or Titanium Ti-6Al-4V?
Copper C10100 conducts heat better: 391 W/m·K against 6.6 W/m·K for Titanium Ti-6Al-4V.
Which expands less with temperature?
Titanium Ti-6Al-4V expands less: 9 µm/m·K against 16.9 µm/m·K for Copper C10100.