EN 1.1203 Steel vs. SAE-AISI 1141 Steel
Both EN 1.1203 steel and SAE-AISI 1141 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 1.1203 steel and the bottom bar is SAE-AISI 1141 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 230 | |
| 210 to 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 15 | |
| 11 to 17 |
| Fatigue Strength, MPa | 210 to 310 | |
| 270 to 430 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 72 |
| Shear Strength, MPa | 420 to 480 | |
| 460 to 480 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 780 | |
| 740 to 810 |
| Tensile Strength: Yield (Proof), MPa | 340 to 480 | |
| 400 to 700 |
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 | 48 | |
| 51 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 10 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 1.9 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 19 | |
| 19 |
| Embodied Water, L/kg | 47 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 69 to 100 | |
| 86 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 310 to 610 | |
| 430 to 1290 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 25 to 28 | |
| 26 to 29 |
| Strength to Weight: Bending, points | 22 to 24 | |
| 23 to 25 |
| Thermal Diffusivity, mm2/s | 13 | |
| 14 |
| Thermal Shock Resistance, points | 22 to 25 | |
| 24 to 26 |
Alloy Composition
| Carbon (C), % | 0.52 to 0.6 | |
| 0.37 to 0.45 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0 |
| Iron (Fe), % | 97.1 to 98.9 | |
| 97.7 to 98.2 |
| Manganese (Mn), % | 0.6 to 0.9 | |
| 1.4 to 1.7 |
| 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 | |
| 0.080 to 0.13 |