Materials / Compare
Copper C110 vs. Plastic PMMA
Compare Copper C110 vs. Plastic PMMA 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 | not given (tensile used) |
| Ultimate tensile strength | 221MPasourcetypical | 80MPasourcetypical, 23 °C |
| Compressive strength | not sourced | 110MPasourcecompressive yield stress, typical |
| Flexural strength | not sourced | 115MPasourcetypical |
| Elongation at break | 55%sourcetypical, 1 in. rod | 5.5%sourcetypical |
| Young's modulus (stiffness) | 117GPasourcetypical | 3.3GPasourcetypical, short-term |
| Density | 8,913kg/m³sourcenominal | 1,190kg/m³sourcetypical |
| Strength to weight | 7.74kN·m/kg | 67.2kN·m/kg8.68x higher |
| Stiffness to weight | 13.1MN·m/kg4.74x higher | 2.77MN·m/kg |
| Poisson's ratio | 0.34sourcereference value at room temperature (Wieland-K32 = Cu-ETP = C11000, rolled products) | 0.37sourcetypical |
| Shear modulus | 43.7GPa36.3x stiffer in shear | 1.2GPa |
| Bulk modulus | 122GPa | 4.23GPa |
| Speed of sound | 3,626m/s | 1,665m/s |
| Thermal | ||
| Thermal conductivity | 391W/m·Ksourcetypical, 20 °C | 0.19W/m·Ksourcetypical |
| Thermal expansion | 16.9µm/m·Ksourcetypical, mean 20-100 °C | 70µm/m·Ksource0-50 °C |
| 100 mm part over a 50 °C swing | 84.5µm growth4.14x less | 350µm growth |
| Specific heat | 385J/kg·Ksourcetypical, 20 °C | 1,470J/kg·Ksourcetypical |
| Heats up and cools (diffusivity) | 114mm²/s1,049x faster | 0.109mm²/s |
| Thermal shock resistance | 8,992W/m217x more resistant | 41.5W/m |
| Melting point | 1,065–1,083°Csourcesolidus-liquidus | not sourced |
| Max service temperature | not sourced | 80°Csourcemax. permanent service temperature |
| Values for | C11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical values | Röhm PLEXIGLAS GS 0F00 cast acrylic sheet, typical values at 23 °C / 50 % RH (Röhm Technical Information Ref. No. 211-1) |
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 PMMA?
Plastic PMMA is stronger: its tensile strength is 80 MPa against yield strength 69 MPa for Copper C110 (16%).
Which is lighter, Copper C110 or Plastic PMMA?
Plastic PMMA is lighter: 1,190 kg/m³ against 8,913 kg/m³ for Copper C110.
Which is stiffer, Copper C110 or Plastic PMMA?
Copper C110 is stiffer: Young's modulus 117 GPa against 3.3 GPa for Plastic PMMA, so the same part in Copper C110 deflects less under the same load.
Which is lighter for the same job, Copper C110 or Plastic PMMA?
For the same stiffness or strength: Copper C110 is lighter for a stiff rod or tie (tension); Plastic PMMA is lighter for a stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Copper C110 | Plastic PMMA |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 4.74x heavier |
| Stiff beam (bending) | 26% heavier | lighter |
| Stiff panel or plate | 2.28x heavier | lighter |
| Strong rod or tie | 8.68x heavier | lighter |
| Strong beam | 8.27x heavier | lighter |
| Strong panel or plate | 8.06x 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 PMMA?
Copper C110 conducts heat better: 391 W/m·K against 0.19 W/m·K for Plastic PMMA.
Which expands less with temperature?
Copper C110 expands less: 16.9 µm/m·K against 70 µm/m·K for Plastic PMMA.