Materials / Compare
Copper C110 vs. Plastic PETG
Compare Copper C110 vs. Plastic PETG 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 | 46.2MPasourcetypical |
| Ultimate tensile strength | 221MPasourcetypical | 46.2MPasourcetypical, peak stress (= stress at yield) |
| Flexural strength | not sourced | 78.9MPasourcetypical |
| Elongation at break | 55%sourcetypical, 1 in. rod | 7.6%sourcetypical |
| Young's modulus (stiffness) | 117GPasourcetypical60.4x stiffer | 1.94GPasourcetypical |
| Density | 8,913kg/m³sourcenominal | 1,270kg/m³sourcetypical |
| Strength to weight | 7.74kN·m/kg | 36.4kN·m/kg4.7x higher |
| Stiffness to weight | 13.1MN·m/kg8.61x higher | 1.53MN·m/kg |
| Poisson's ratio | 0.34sourcereference value at room temperature (Wieland-K32 = Cu-ETP = C11000, rolled products) | not sourced |
| Shear modulus | 43.7GPa | not sourced |
| Bulk modulus | 122GPa | not sourced |
| Speed of sound | 3,626m/s | 1,236m/s |
| Thermal | ||
| Thermal conductivity | 391W/m·Ksourcetypical, 20 °C | 0.21W/m·Ksourcebase material: Eastman Eastar Copolyester 6763 (PETG), typical |
| Thermal expansion | 16.9µm/m·Ksourcetypical, mean 20-100 °C | 51µm/m·Ksourcebase material: Eastman Eastar Copolyester 6763 (PETG), typical |
| 100 mm part over a 50 °C swing | 84.5µm growth3.02x less | 255µm growth |
| Specific heat | 385J/kg·Ksourcetypical, 20 °C | 1,300J/kg·Ksourcebase material: Eastman Eastar Copolyester 6763 (PETG), DSC at 60 °C (lowest temperature listed) |
| Heats up and cools (diffusivity) | 114mm²/s896x faster | 0.127mm²/s |
| Thermal shock resistance | 8,992W/m | not sourced |
| Melting point | 1,065–1,083°Csourcesolidus-liquidus | not sourced |
| Glass transition | not sourced | 77.4°Csourcetypical |
| Max service temperature | not sourced | 76.2°CsourceHDT 0.455 MPa (printed specimens) |
| Values for | C11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical values | Ultimaker PETG, 3D-printed specimens, XY (flat); Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS v1.00, April 29, 2022. |
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.
Plastic PETG is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Copper C110 stronger than Plastic PETG?
Copper C110 is stronger: its yield strength is 69 MPa against 46.2 MPa for Plastic PETG (49%).
Which is lighter, Copper C110 or Plastic PETG?
Plastic PETG is lighter: 1,270 kg/m³ against 8,913 kg/m³ for Copper C110.
Which is stiffer, Copper C110 or Plastic PETG?
Copper C110 is stiffer: Young's modulus 117 GPa against 1.94 GPa for Plastic PETG, so the same part in Copper C110 deflects less under the same load.
Which is lighter for the same job, Copper C110 or Plastic PETG?
For the same stiffness or strength: Copper C110 is lighter for a stiff rod or tie (tension), stiff beam (bending); Plastic PETG is lighter for a stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Copper C110 | Plastic PETG |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 8.61x heavier |
| Stiff beam (bending) | lighter | 11% heavier |
| Stiff panel or plate | 1.79x heavier | lighter |
| Strong rod or tie | 4.7x heavier | lighter |
| Strong beam | 5.37x heavier | lighter |
| Strong panel or plate | 5.74x 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 PETG?
Copper C110 conducts heat better: 391 W/m·K against 0.21 W/m·K for Plastic PETG.
Which expands less with temperature?
Copper C110 expands less: 16.9 µm/m·K against 51 µm/m·K for Plastic PETG.