EN 1.1181 Steel vs. EN 1.0308 Steel
Both EN 1.1181 steel and EN 1.0308 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 (1, in this case) are not shown.
For each property being compared, the top bar is EN 1.1181 steel and the bottom bar is EN 1.0308 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 180 | |
| 100 to 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 19 to 20 | |
| 7.8 to 28 |
| Fatigue Strength, MPa | 190 to 260 | |
| 140 to 200 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Shear Strength, MPa | 350 to 390 | |
| 230 to 260 |
| Tensile Strength: Ultimate (UTS), MPa | 560 to 620 | |
| 360 to 440 |
| Tensile Strength: Yield (Proof), MPa | 280 to 380 | |
| 190 to 340 |
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 | 42 | |
| 51 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 7.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 8.1 |
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 | 90 to 110 | |
| 32 to 95 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 380 | |
| 93 to 300 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 20 to 22 | |
| 13 to 16 |
| Strength to Weight: Bending, points | 19 to 21 | |
| 14 to 16 |
| Thermal Diffusivity, mm2/s | 11 | |
| 14 |
| Thermal Shock Resistance, points | 19 to 21 | |
| 11 to 14 |
Alloy Composition
| Carbon (C), % | 0.32 to 0.39 | |
| 0 to 0.17 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0 |
| Iron (Fe), % | 97.4 to 99.18 | |
| 98.2 to 100 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 0 to 1.2 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.045 |