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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Sources5 documents: Copper Development Association, Chemours, 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
Plastic PTFE
Chemours Teflon PTFE 7C X granular molding resin, typical values (tensile/elongation measured on 0.13 mm skived tape)
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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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Teflon PTFE Fluoropolymer Resin Properties HandbookChemoursarchived copyPlastic PTFE · Yield strength: typical yield strength at 23 °C (Teflon PTFE, Table 8)Plastic PTFE · Poisson's ratio: typical, 23 °C (Teflon PTFE resins, Chemours handbook)Plastic PTFE · Thermal conductivity: typical, granular resin, 4.6 mm specimenPlastic PTFE · Thermal expansion: typical, granular resin, 23-60 °C (ASTM E228)Plastic PTFE · Specific heat: typical, granular resin, 20 °C (ASTM D4591)
Wieland-K19 (Cu-DHP, C12200) Data SheetWielandarchived copyCopper C12200 · Poisson's ratio: reference value at room temperature (Wieland-K19 = Cu-DHP = C12200, rolled products)
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Teflon PTFE 6C X Product InformationChemoursarchived copyPlastic PTFE · Max service temperature: service temperature (Chemours general Teflon PTFE statement)
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 Plastic PTFE?
Copper C12200 is stronger: its yield strength is 69 MPa against 9 MPa for Plastic PTFE (7.67x).
Which is lighter, Copper C12200 or Plastic PTFE?
Plastic PTFE is lighter: 2,160 kg/m³ against 8,941 kg/m³ for Copper C12200.
Which is lighter for the same job, Copper C12200 or Plastic PTFE?
For the same stiffness or strength: Copper C12200 is lighter for a strong rod or tie; Plastic PTFE is lighter for a strong beam, strong panel or plate.
Part that must be
Copper C12200
Plastic PTFE
Strong rod or tie
lighter
1.85x heavier
Strong beam
6% heavier
lighter
Strong panel or plate
49% 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 Plastic PTFE?
Plastic PTFE stretches further before it breaks: 350% elongation at break against 45% for Copper C12200.
Thermal
Which conducts heat better, Copper C12200 or Plastic PTFE?
Copper C12200 conducts heat better: 339 W/m·K against 0.25 W/m·K for Plastic PTFE.
Which expands less with temperature?
Copper C12200 expands less: 16.9 µm/m·K against 100 µm/m·K for Plastic PTFE.