EN 1.1158 Steel vs. SAE-AISI 1018 Steel
Both EN 1.1158 steel and SAE-AISI 1018 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is EN 1.1158 steel and the bottom bar is SAE-AISI 1018 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 to 150 | |
| 130 to 140 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 23 to 24 | |
| 17 to 27 |
| Fatigue Strength, MPa | 170 to 220 | |
| 180 to 270 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 300 to 320 | |
| 280 to 300 |
| Tensile Strength: Ultimate (UTS), MPa | 470 to 500 | |
| 430 to 480 |
| Tensile Strength: Yield (Proof), MPa | 240 to 310 | |
| 240 to 400 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 49 | |
| 52 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.2 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 1.8 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 19 | |
| 18 |
| Embodied Water, L/kg | 47 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 110 | |
| 75 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 250 | |
| 150 to 430 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 17 to 18 | |
| 15 to 17 |
| Strength to Weight: Bending, points | 17 to 18 | |
| 16 to 17 |
| Thermal Diffusivity, mm2/s | 13 | |
| 14 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 14 to 15 |
Alloy Composition
| Carbon (C), % | 0.22 to 0.29 | |
| 0.15 to 0.2 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0 |
| Iron (Fe), % | 97.6 to 99.38 | |
| 98.8 to 99.25 |
| Manganese (Mn), % | 0.4 to 0.7 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.050 |