Ductile Cast Iron vs. 515.0 Aluminum
Ductile cast iron belongs to the iron alloys classification, while 515.0 aluminum belongs to the aluminum alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is ductile cast iron and the bottom bar is 515.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 70 |
| Elongation at Break, % | 2.1 to 20 | |
| 10 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.33 |
| Shear Modulus, GPa | 64 to 70 | |
| 26 |
| Shear Strength, MPa | 420 to 800 | |
| 190 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 280 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 470 |
| Maximum Temperature: Mechanical, °C | 290 | |
| 170 |
| Melting Completion (Liquidus), °C | 1160 | |
| 620 |
| Melting Onset (Solidus), °C | 1120 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 900 |
| Thermal Expansion, µm/m-K | 11 | |
| 23 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 9.5 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 2.6 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 8.4 |
| Embodied Energy, MJ/kg | 21 | |
| 150 |
| Embodied Water, L/kg | 43 | |
| 1120 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 52 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 30 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 36 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 13 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 93.6 to 96.6 |
| Carbon (C), % | 3.0 to 3.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 0 to 1.3 |
| Magnesium (Mg), % | 0 | |
| 2.5 to 4.0 |
| Manganese (Mn), % | 0 | |
| 0.4 to 0.6 |
| Phosphorus (P), % | 0 to 0.080 | |
| 0 |
| Silicon (Si), % | 1.5 to 2.8 | |
| 0.5 to 10 |
| Zinc (Zn), % | 0 | |
| 0 to 0.1 |
| Residuals, % | 0 | |
| 0 to 0.15 |