Ductile Cast Iron vs. EN 1.4378 Stainless Steel
Both ductile cast iron and EN 1.4378 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is ductile cast iron and the bottom bar is EN 1.4378 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 160 to 310 | |
| 190 to 340 |
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 200 |
| Elongation at Break, % | 2.1 to 20 | |
| 14 to 34 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.28 |
| Shear Modulus, GPa | 64 to 70 | |
| 77 |
| Shear Strength, MPa | 420 to 800 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 760 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 310 to 670 | |
| 430 to 970 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 290 | |
| 910 |
| Melting Completion (Liquidus), °C | 1160 | |
| 1390 |
| Melting Onset (Solidus), °C | 1120 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Expansion, µm/m-K | 11 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 12 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 2.7 |
| Embodied Energy, MJ/kg | 21 | |
| 39 |
| Embodied Water, L/kg | 43 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 80 | |
| 150 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 1330 | |
| 470 to 2370 |
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 25 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 24 to 31 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 3.0 to 3.5 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 | |
| 17 to 19 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 61.2 to 69 |
| Manganese (Mn), % | 0 | |
| 11.5 to 14.5 |
| Nickel (Ni), % | 0 | |
| 2.3 to 3.7 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.4 |
| Phosphorus (P), % | 0 to 0.080 | |
| 0 to 0.060 |
| Silicon (Si), % | 1.5 to 2.8 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |