Ductile Cast Iron vs. Titanium 15-3-3-3
Ductile cast iron belongs to the iron alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is ductile cast iron and the bottom bar is titanium 15-3-3-3.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 100 |
| Elongation at Break, % | 2.1 to 20 | |
| 5.7 to 8.0 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.33 |
| Shear Modulus, GPa | 64 to 70 | |
| 39 |
| Shear Strength, MPa | 420 to 800 | |
| 660 to 810 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 1120 to 1390 |
| Tensile Strength: Yield (Proof), MPa | 310 to 670 | |
| 1100 to 1340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 290 | |
| 430 |
| Melting Completion (Liquidus), °C | 1160 | |
| 1620 |
| Melting Onset (Solidus), °C | 1120 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 520 |
| Thermal Conductivity, W/m-K | 31 to 36 | |
| 8.1 |
| Thermal Expansion, µm/m-K | 11 | |
| 9.8 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 1.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 to 9.4 | |
| 2.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 40 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 4.8 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 59 |
| Embodied Energy, MJ/kg | 21 | |
| 950 |
| Embodied Water, L/kg | 43 | |
| 260 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 80 | |
| 78 to 89 |
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 12 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 32 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 64 to 80 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 50 to 57 |
| Thermal Diffusivity, mm2/s | 8.9 to 10 | |
| 3.2 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 79 to 98 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 2.5 to 3.5 |
| Carbon (C), % | 3.0 to 3.5 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 2.5 to 3.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 0 to 0.25 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.13 |
| Phosphorus (P), % | 0 to 0.080 | |
| 0 |
| Silicon (Si), % | 1.5 to 2.8 | |
| 0 |
| Tin (Sn), % | 0 | |
| 2.5 to 3.5 |
| Titanium (Ti), % | 0 | |
| 72.6 to 78.5 |
| Vanadium (V), % | 0 | |
| 14 to 16 |
| Residuals, % | 0 | |
| 0 to 0.4 |