SAE-AISI D4 Steel vs. EN 1.1191 Steel
Both SAE-AISI D4 steel and EN 1.1191 steel are iron alloys. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is EN 1.1191 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 8.4 to 15 | |
| 16 to 17 |
| Fatigue Strength, MPa | 310 to 920 | |
| 210 to 290 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 74 | |
| 72 |
| Shear Strength, MPa | 460 to 1210 | |
| 380 to 430 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 2060 | |
| 630 to 700 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1540 | |
| 310 to 440 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1380 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 31 | |
| 48 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.2 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.0 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 8.0 | |
| 2.1 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 1.4 |
| Embodied Energy, MJ/kg | 49 | |
| 19 |
| Embodied Water, L/kg | 100 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 160 | |
| 83 to 100 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 75 | |
| 22 to 25 |
| Strength to Weight: Bending, points | 24 to 47 | |
| 21 to 22 |
| Thermal Diffusivity, mm2/s | 8.3 | |
| 13 |
| Thermal Shock Resistance, points | 23 to 63 | |
| 20 to 22 |
Alloy Composition
| Carbon (C), % | 2.1 to 2.4 | |
| 0.42 to 0.5 |
| Chromium (Cr), % | 11 to 13 | |
| 0 to 0.4 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 80.6 to 86.3 | |
| 97.3 to 99.08 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0.7 to 1.2 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 to 0.4 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.035 |
| Vanadium (V), % | 0 to 1.0 | |
| 0 |