Materials / Compare
Concrete vs. Nickel Inconel 718
Compare Concrete vs. Nickel Inconel 718 strength, stiffness, weight and thermal properties.
| Try it on a partA sample part to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | not sourced | 1,207MPasourcetypical, 1.0 in. hot-rolled bar, 0.2% offset |
| Ultimate tensile strength | not sourced | 1,389MPasourcetypical, 1.0 in. bar |
| Compressive strength | 27.6MPasourcespecified compressive strength class (f'c), not a measured typical | not sourced |
| Elongation at break | not sourced | 20%sourcetypical, 1.0 in. bar |
| Young's modulus (stiffness) | not sourced | 200GPasourcetypical, 21 °C, annealed + aged |
| Density | 2,240–2,400kg/m³sourcerange for normalweight concrete | 8,221kg/m³sourcenominal, annealed and aged |
| Strength to weight | not sourced | 147kN·m/kg |
| Stiffness to weight | not sourced | 24.3MN·m/kg |
| Poisson's ratio | 0.15–0.2sourcegeneral range at normal ambient conditions (overall 0.11-0.32) | 0.294sourcetypical, 21 °C, annealed + aged |
| Shear modulus | not sourced | 77.3GPa |
| Bulk modulus | not sourced | 162GPa |
| Speed of sound | not sourced | 4,932m/s |
| Thermal | ||
| Thermal conductivity | 0.9W/m·Ksourcetypical (comparative value) | 11.4W/m·Ksourcetypical, 21 °C, annealed + aged (calculated from resistivity per footnote a) |
| Thermal expansion | 8–12µm/m·Ksourcetypical range for portland cement concrete (aggregate dependent) | 13.2µm/m·Ksourcetypical, mean 21-93 °C, annealed + aged |
| 100 mm part over a 50 °C swing | 50µm growth32% less | 66µm growth |
| Specific heat | 900J/kg·Ksourcetypical (NIST guidance for thermal analysis) | 435J/kg·Ksourcetypical, 21 °C |
| Heats up and cools (diffusivity) | 0.431mm²/s | 3.19mm²/s7.4x faster |
| Thermal shock resistance | not sourced | 3,680W/m |
| Melting point | not sourced | 1,260–1,336°Csourcemelting range |
| Max service temperature | 65°Csourcecode long-term temperature limit (ASME Code, concrete containments) | 704°Csourceupper use temperature stated by producer |
| Values for | Normal-weight portland cement concrete, strength class f'c = 4000 psi (28 MPa) per NRMCA CIP 35; density NRMCA CIP 36; thermal conductivity USDA FPL Wood Handbook; service temperature ORNL/NRC review | 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
Which is lighter, Concrete or Nickel Inconel 718?
Concrete is lighter: 2,320 kg/m³ against 8,221 kg/m³ for Nickel Inconel 718.
Which conducts heat better, Concrete or Nickel Inconel 718?
Nickel Inconel 718 conducts heat better: 11.4 W/m·K against 0.9 W/m·K for Concrete.
Which expands less with temperature?
Concrete expands less: 10 µm/m·K against 13.2 µm/m·K for Nickel Inconel 718.