Grade 250 Maraging Steel vs. Ductile Cast Iron
Both grade 250 maraging steel and ductile cast iron are iron alloys. They have 69% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is ductile cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 170 to 180 |
| Elongation at Break, % | 7.3 to 17 | |
| 2.1 to 20 |
| Poisson's Ratio | 0.3 | |
| 0.28 to 0.31 |
| Shear Modulus, GPa | 75 | |
| 64 to 70 |
| Shear Strength, MPa | 600 to 1060 | |
| 420 to 800 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1800 | |
| 460 to 920 |
| Tensile Strength: Yield (Proof), MPa | 660 to 1740 | |
| 310 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 270 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1160 |
| Melting Onset (Solidus), °C | 1430 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 490 |
| Thermal Expansion, µm/m-K | 12 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 32 | |
| 1.9 |
| Density, g/cm3 | 8.2 | |
| 7.1 to 7.5 |
| Embodied Carbon, kg CO2/kg material | 4.9 | |
| 1.5 |
| Embodied Energy, MJ/kg | 65 | |
| 21 |
| Embodied Water, L/kg | 140 | |
| 43 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 to 150 | |
| 17 to 80 |
| Stiffness to Weight: Axial, points | 13 | |
| 12 to 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 to 26 |
| Strength to Weight: Axial, points | 33 to 61 | |
| 17 to 35 |
| Strength to Weight: Bending, points | 26 to 40 | |
| 18 to 29 |
| Thermal Shock Resistance, points | 29 to 54 | |
| 17 to 35 |
Alloy Composition
| Aluminum (Al), % | 0.050 to 0.15 | |
| 0 |
| Boron (B), % | 0 to 0.0030 | |
| 0 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 3.0 to 3.5 |
| Cobalt (Co), % | 7.0 to 8.5 | |
| 0 |
| Iron (Fe), % | 66.3 to 71.1 | |
| 93.7 to 95.5 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 |
| Molybdenum (Mo), % | 4.6 to 5.2 | |
| 0 |
| Nickel (Ni), % | 17 to 19 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.080 |
| Silicon (Si), % | 0 to 0.1 | |
| 1.5 to 2.8 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Titanium (Ti), % | 0.3 to 0.5 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |