EN 1.1191 Steel vs. SAE-AISI 1049 Steel
Both EN 1.1191 steel and SAE-AISI 1049 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 1.1191 steel and the bottom bar is SAE-AISI 1049 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 180 to 200 | |
| 200 to 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 16 to 17 | |
| 11 to 17 |
| Fatigue Strength, MPa | 210 to 290 | |
| 250 to 400 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 72 | |
| 72 |
| Shear Strength, MPa | 380 to 430 | |
| 420 to 450 |
| Tensile Strength: Ultimate (UTS), MPa | 630 to 700 | |
| 680 to 750 |
| Tensile Strength: Yield (Proof), MPa | 310 to 440 | |
| 370 to 640 |
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 | |
| 7.0 |
| 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 | |
| 7.8 |
| 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 | 83 to 100 | |
| 75 to 99 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 260 to 510 | |
| 370 to 1090 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 22 to 25 | |
| 24 to 27 |
| Strength to Weight: Bending, points | 21 to 22 | |
| 22 to 23 |
| Thermal Diffusivity, mm2/s | 13 | |
| 14 |
| Thermal Shock Resistance, points | 20 to 22 | |
| 22 to 24 |
Alloy Composition
| Carbon (C), % | 0.42 to 0.5 | |
| 0.46 to 0.53 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0 |
| Iron (Fe), % | 97.3 to 99.08 | |
| 98.5 to 98.9 |
| Manganese (Mn), % | 0.5 to 0.8 | |
| 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 |