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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Sources4 documents: Copper Development Association, TIMET, Wieland
Copper C12200
C12200 phosphorus-deoxidized copper (DHP, the air-conditioning and refrigeration tube copper), tube annealed to 0.050 mm grain size (OS050), 0.065 in. wall, copper.org typical values
C12200 Alloy (copper.org)Copper Development Associationarchived copyCopper C12200 · Yield strength: typical, 0.5% extension under load, 0.065 in. tubeCopper C12200 · Ultimate tensile strength: typical, 0.065 in. tubeCopper C12200 · Elongation at break: typical, 0.065 in. tubeCopper C12200 · Young's modulus (stiffness): typicalCopper C12200 · Density: nominalCopper C12200 · Thermal conductivity: typical, 20 °CCopper C12200 · Thermal expansion: typical, mean 20-100 °CCopper C12200 · Specific heat: typical, 20 °CCopper C12200 · Melting point: liquidus
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TIMETAL 6-4 PropertiesTIMETarchived copyTitanium · Yield strength: typical, plate (>0.187 in), annealed, 0.2% offsetTitanium · Ultimate tensile strength: typical, plate, annealedTitanium · Elongation at break: typical, in 2 in., plate annealedTitanium · Density: nominalTitanium · Poisson's ratio: mean of TIMET measurementsTitanium · Melting point: melting rangeTitanium · Max service temperature: upper recommended use temperature
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TIMETAL 6-4 Data SheetTIMETarchived copyTitanium · Young's modulus (stiffness): typical range, 20 °CTitanium · Thermal conductivity: typical, 20 °C, mill annealedTitanium · Thermal expansion: typical, mean 0-100 °CTitanium · Specific heat: typical, 20 °C
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Wieland-K19 (Cu-DHP, C12200) Data SheetWielandarchived copyCopper C12200 · Poisson's ratio: reference value at room temperature (Wieland-K19 = Cu-DHP = C12200, 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 C12200 stronger than Titanium?
Titanium is stronger: its yield strength is 885 MPa against 69 MPa for Copper C12200 (12.8x).
Which is lighter, Copper C12200 or Titanium?
Titanium is lighter: 4,430 kg/m³ against 8,941 kg/m³ for Copper C12200.
Which is stiffer, Copper C12200 or Titanium?
Copper C12200 is stiffer: Young's modulus 117 GPa against 115 GPa for Titanium, so the same part in Copper C12200 deflects less under the same load.
Which is lighter for the same job, Copper C12200 or Titanium?
For the same stiffness or strength: Titanium 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 C12200
Titanium
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 C12200 or Titanium?
Copper C12200 stretches further before it breaks: 45% elongation at break against 16% for Titanium.
Thermal
Which conducts heat better, Copper C12200 or Titanium?
Copper C12200 conducts heat better: 339 W/m·K against 6.6 W/m·K for Titanium.
Which expands less with temperature?
Titanium expands less: 9 µm/m·K against 16.9 µm/m·K for Copper C12200.