Materials / Compare
Brick vs. Steel AISI 1018
Compare Brick 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 given (tensile used) | 372MPasourceproducer-stated, cold drawn |
| Ultimate tensile strength | 5.1MPasourcemodulus of rupture (no direct tensile value) | 441MPasourceproducer-stated, cold drawn |
| Compressive strength | 77.9MPasourcemean unit compressive strength, solid extruded brick (survey mean; SD 30.8 MPa) | 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 | 2,082kg/m³sourceface brick density row used for k (BIA notes most fired clay brick 120-130 lb/ft3) | 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 | 2.45kN·m/kg | 47.3kN·m/kg19.3x higher |
| Stiffness to weight | not sourced | 25.4MN·m/kg |
| Poisson's ratio | not sourced | 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 | 0.92–1.12W/m·Ksourcerange for 130 lb/ft3 face brick (ASHRAE 2013 via BIA) | 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 | 7.2µm/m·KsourceTMS Code average coefficient, clay/shale unit masonry | 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 | 36µm growth1.67x less | 60µm growth |
| Specific heat | 837J/kg·Ksourcevalue used in BIA heat-capacity sample calculation | 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) | 0.585mm²/s | 13.6mm²/s23.2x faster |
| Thermal shock resistance | not sourced | 5,473W/m |
| Values for | Solid extruded clay/shale brick units (BIA 1993 manufacturer survey, TN 3A 2024); face brick of 130 lb/ft3 for thermal properties (BIA TN 4, from ASHRAE 2013); CTE is the TMS Code value for clay/shale masonry | 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
Is Brick stronger than Steel AISI 1018?
Steel AISI 1018 is stronger: its yield strength is 372 MPa against tensile strength 5.1 MPa for Brick (72.9x).
Which is lighter, Brick or Steel AISI 1018?
Brick is lighter: 2,082 kg/m³ against 7,861 kg/m³ for Steel AISI 1018.
Which is lighter for the same job, Brick or Steel AISI 1018?
For the same stiffness or strength: Steel AISI 1018 is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Brick | Steel AISI 1018 |
|---|---|---|
| Strong rod or tie | 19.3x heavier | lighter |
| Strong beam | 4.62x heavier | lighter |
| Strong panel or plate | 2.26x 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, Brick or Steel AISI 1018?
Steel AISI 1018 conducts heat better: 51.9 W/m·K against 1.02 W/m·K for Brick.
Which expands less with temperature?
Brick expands less: 7.2 µm/m·K against 12 µm/m·K for Steel AISI 1018.