Materials / Compare
Copper C110 vs. Plastic PTFE
Compare Copper C110 vs. Plastic PTFE strength, stiffness, weight and thermal properties.
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 69MPasourcetypical, 0.5% extension under load | 9MPasourcetypical yield strength at 23 °C (Teflon PTFE, Table 8) |
| Ultimate tensile strength | 221MPasourcetypical | 39.3MPasourcetypical, skived tape 0.13 mm |
| Elongation at break | 55%sourcetypical, 1 in. rod | 350%sourcetypical, skived tape 0.13 mm |
| Young's modulus (stiffness) | 117GPasourcetypical | not sourced |
| Density | 8,913kg/m³sourcenominal | 2,160kg/m³sourcetypical (standard specific gravity, ASTM D4894) |
| Strength to weight | 7.74kN·m/kg1.86x higher | 4.17kN·m/kg |
| Stiffness to weight | 13.1MN·m/kg | not sourced |
| Poisson's ratio | 0.34sourcereference value at room temperature (Wieland-K32 = Cu-ETP = C11000, rolled products) | 0.46sourcetypical, 23 °C (Teflon PTFE resins, Chemours handbook) |
| Shear modulus | 43.7GPa | not sourced |
| Bulk modulus | 122GPa | not sourced |
| Speed of sound | 3,626m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 391W/m·Ksourcetypical, 20 °C | 0.25W/m·Ksourcetypical, granular resin, 4.6 mm specimen |
| Thermal expansion | 16.9µm/m·Ksourcetypical, mean 20-100 °C | 100µm/m·Ksourcetypical, granular resin, 23-60 °C (ASTM E228) |
| 100 mm part over a 50 °C swing | 84.5µm growth5.92x less | 500µm growth |
| Specific heat | 385J/kg·Ksourcetypical, 20 °C | 1,400J/kg·Ksourcetypical, granular resin, 20 °C (ASTM D4591) |
| Heats up and cools (diffusivity) | 114mm²/s1,378x faster | 0.0827mm²/s |
| Thermal shock resistance | 8,992W/m | not sourced |
| Melting point | 1,065–1,083°Csourcesolidus-liquidus | 327°Csourcesecond melting peak (sintered polymer), +/-10 |
| Max service temperature | not sourced | 260°Csourceservice temperature (Chemours general Teflon PTFE statement) |
| Values for | C11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical values | Chemours Teflon PTFE 7C X granular molding resin, typical values (tensile/elongation measured on 0.13 mm skived tape) |
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 Copper C110 stronger than Plastic PTFE?
Copper C110 is stronger: its yield strength is 69 MPa against 9 MPa for Plastic PTFE (7.67x).
Which is lighter, Copper C110 or Plastic PTFE?
Plastic PTFE is lighter: 2,160 kg/m³ against 8,913 kg/m³ for Copper C110.
Which is lighter for the same job, Copper C110 or Plastic PTFE?
For the same stiffness or strength: Copper C110 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 C110 | Plastic PTFE |
|---|---|---|
| Strong rod or tie | lighter | 1.86x 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 conducts heat better, Copper C110 or Plastic PTFE?
Copper C110 conducts heat better: 391 W/m·K against 0.25 W/m·K for Plastic PTFE.
Which expands less with temperature?
Copper C110 expands less: 16.9 µm/m·K against 100 µm/m·K for Plastic PTFE.