Materials / Compare
Concrete vs. Steel AISI 1018
Compare Concrete vs. Steel AISI 1018 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 | 372MPasourceproducer-stated, cold drawn |
| Ultimate tensile strength | not sourced | 441MPasourceproducer-stated, cold drawn |
| Compressive strength | 27.6MPasourcespecified compressive strength class (f'c), not a measured typical | not sourced |
| Elongation at break | not sourced | 15%sourcein 2 in (50.8 mm) |
| Young's modulus (stiffness) | not sourced | 200GPasourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018) |
| Density | 2,240–2,400kg/m³sourcerange for normalweight concrete | 7,861kg/m³sourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018) |
| Strength to weight | not sourced | 47.3kN·m/kg |
| Stiffness to weight | not sourced | 25.4MN·m/kg |
| Poisson's ratio | 0.15–0.2sourcegeneral range at normal ambient conditions (overall 0.11-0.32) | 0.32sourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018) |
| Shear modulus | not sourced | 75.7GPa |
| Bulk modulus | not sourced | 185GPa |
| Speed of sound | not sourced | 5,043m/s |
| Thermal | ||
| Thermal conductivity | 0.9W/m·Ksourcetypical (comparative value) | 51.9W/m·Ksourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018) |
| Thermal expansion | 8–12µm/m·Ksourcetypical range for portland cement concrete (aggregate dependent) | 12µm/m·Ksourcebase material: unalloyed carbon steel, Ovako family table (S275JR, 'none alloyed structural steels', C <= 0.21%); mean 20-300 °C |
| 100 mm part over a 50 °C swing | 50µm growth20% less | 60µm growth |
| Specific heat | 900J/kg·Ksourcetypical (NIST guidance for thermal analysis) | 486J/kg·Ksourcebase material: AISI 1025 plain carbon steel (MIL-HDBK-5J design value; ASTM A108 bar is the cold-finished carbon-steel bar spec that also covers 1018) |
| Heats up and cools (diffusivity) | 0.431mm²/s | 13.6mm²/s31.5x faster |
| Thermal shock resistance | not sourced | 5,473W/m |
| Max service temperature | 65°Csourcecode long-term temperature limit (ASME Code, concrete containments) | not sourced |
| 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 | AISI 1018 cold drawn bar (Niagara LaSalle, cold-finished bar producer) |
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 Steel AISI 1018?
Concrete is lighter: 2,320 kg/m³ against 7,861 kg/m³ for Steel AISI 1018.
Which conducts heat better, Concrete or Steel AISI 1018?
Steel AISI 1018 conducts heat better: 51.9 W/m·K against 0.9 W/m·K for Concrete.
Which expands less with temperature?
Concrete expands less: 10 µm/m·K against 12 µm/m·K for Steel AISI 1018.