EN 1.0558 Cast Steel vs. EN 1.0591 Cast Steel
Both EN 1.0558 cast steel and EN 1.0591 cast steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.0558 cast steel and the bottom bar is EN 1.0591 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 18 | |
| 19 |
| Fatigue Strength, MPa | 230 | |
| 240 |
| Impact Strength: V-Notched Charpy, J | 33 | |
| 29 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 640 | |
| 620 |
| Tensile Strength: Yield (Proof), MPa | 340 | |
| 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 400 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1470 |
| Melting Onset (Solidus), °C | 1430 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 53 | |
| 53 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.8 | |
| 7.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.9 | |
| 8.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.7 | |
| 1.7 |
| Density, g/cm3 | 7.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 18 | |
| 18 |
| Embodied Water, L/kg | 45 | |
| 45 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 99 | |
| 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 | |
| 340 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 22 | |
| 22 |
| Strength to Weight: Bending, points | 21 | |
| 20 |
| Thermal Diffusivity, mm2/s | 14 | |
| 14 |
| Thermal Shock Resistance, points | 20 | |
| 20 |
Alloy Composition
| Iron (Fe), % | 99.935 to 100 | |
| 99.935 to 100 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.035 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |