Materials / Compare
Copper C110 vs. Nickel Inconel 718
Compare Copper C110 vs. Nickel Inconel 718 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 | 1,207MPasourcetypical, 1.0 in. hot-rolled bar, 0.2% offset |
| Ultimate tensile strength | 221MPasourcetypical | 1,389MPasourcetypical, 1.0 in. bar |
| Elongation at break | 55%sourcetypical, 1 in. rod | 20%sourcetypical, 1.0 in. bar |
| Young's modulus (stiffness) | 117GPasourcetypical | 200GPasourcetypical, 21 °C, annealed + aged |
| Density | 8,913kg/m³sourcenominal | 8,221kg/m³sourcenominal, annealed and aged |
| Strength to weight | 7.74kN·m/kg | 147kN·m/kg19x higher |
| Stiffness to weight | 13.1MN·m/kg | 24.3MN·m/kg1.85x higher |
| Poisson's ratio | 0.34sourcereference value at room temperature (Wieland-K32 = Cu-ETP = C11000, rolled products) | 0.294sourcetypical, 21 °C, annealed + aged |
| Shear modulus | 43.7GPa | 77.3GPa1.77x stiffer in shear |
| Bulk modulus | 122GPa | 162GPa |
| Speed of sound | 3,626m/s | 4,932m/s |
| Thermal | ||
| Thermal conductivity | 391W/m·Ksourcetypical, 20 °C | 11.4W/m·Ksourcetypical, 21 °C, annealed + aged (calculated from resistivity per footnote a) |
| Thermal expansion | 16.9µm/m·Ksourcetypical, mean 20-100 °C | 13.2µm/m·Ksourcetypical, mean 21-93 °C, annealed + aged |
| 100 mm part over a 50 °C swing | 84.5µm growth | 66µm growth28% less |
| Specific heat | 385J/kg·Ksourcetypical, 20 °C | 435J/kg·Ksourcetypical, 21 °C |
| Heats up and cools (diffusivity) | 114mm²/s35.7x faster | 3.19mm²/s |
| Thermal shock resistance | 8,992W/m2.44x more resistant | 3,680W/m |
| Melting point | 1,065–1,083°Csourcesolidus-liquidus | 1,260–1,336°Csourcemelting range |
| Max service temperature | not sourced | 704°Csourceupper use temperature stated by producer |
| Values for | C11000 ETP copper, annealed to 0.050 mm grain size (OS050), 1 in. rod, copper.org typical values | INCONEL alloy 718, standard grade, 1750 °F/1 hr anneal + 1325 °F/8 hr F.C. to 1150 °F aged; Special Metals bulletin SMC-045 typical values |
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 Nickel Inconel 718?
Nickel Inconel 718 is stronger: its yield strength is 1,207 MPa against 69 MPa for Copper C110 (17.5x).
Which is lighter, Copper C110 or Nickel Inconel 718?
Nickel Inconel 718 is lighter: 8,221 kg/m³ against 8,913 kg/m³ for Copper C110.
Which is stiffer, Copper C110 or Nickel Inconel 718?
Nickel Inconel 718 is stiffer: Young's modulus 200 GPa against 117 GPa for Copper C110, so the same part in Nickel Inconel 718 deflects less under the same load.
Which is lighter for the same job, Copper C110 or Nickel Inconel 718?
For the same stiffness or strength: Nickel Inconel 718 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 C110 | Nickel Inconel 718 |
|---|---|---|
| Stiff rod or tie (tension) | 1.85x heavier | lighter |
| Stiff beam (bending) | 42% heavier | lighter |
| Stiff panel or plate | 30% heavier | lighter |
| Strong rod or tie | 19x heavier | lighter |
| Strong beam | 7.31x heavier | lighter |
| Strong panel or plate | 4.53x 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 Nickel Inconel 718?
Copper C110 conducts heat better: 391 W/m·K against 11.4 W/m·K for Nickel Inconel 718.
Which expands less with temperature?
Nickel Inconel 718 expands less: 13.2 µm/m·K against 16.9 µm/m·K for Copper C110.