Ductile Cast Iron vs. Grade 19 Titanium
Ductile cast iron belongs to the iron alloys classification, while grade 19 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ductile cast iron and the bottom bar is grade 19 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 170 to 180 | |
| 120 |
| Elongation at Break, % | 2.1 to 20 | |
| 5.6 to 17 |
| Poisson's Ratio | 0.28 to 0.31 | |
| 0.32 |
| Shear Modulus, GPa | 64 to 70 | |
| 47 |
| Shear Strength, MPa | 420 to 800 | |
| 550 to 750 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 920 | |
| 890 to 1300 |
| Tensile Strength: Yield (Proof), MPa | 310 to 670 | |
| 870 to 1170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 290 | |
| 370 |
| Melting Completion (Liquidus), °C | 1160 | |
| 1660 |
| Melting Onset (Solidus), °C | 1120 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 520 |
| Thermal Conductivity, W/m-K | 31 to 36 | |
| 6.2 |
| Thermal Expansion, µm/m-K | 11 | |
| 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.9 | |
| 45 |
| Density, g/cm3 | 7.1 to 7.5 | |
| 5.0 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 47 |
| Embodied Energy, MJ/kg | 21 | |
| 760 |
| Embodied Water, L/kg | 43 | |
| 230 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 80 | |
| 70 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 to 1330 | |
| 3040 to 5530 |
| Stiffness to Weight: Axial, points | 12 to 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 to 26 | |
| 33 |
| Strength to Weight: Axial, points | 17 to 35 | |
| 49 to 72 |
| Strength to Weight: Bending, points | 18 to 29 | |
| 41 to 53 |
| Thermal Diffusivity, mm2/s | 8.9 to 10 | |
| 2.4 |
| Thermal Shock Resistance, points | 17 to 35 | |
| 57 to 83 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 3.0 to 4.0 |
| Carbon (C), % | 3.0 to 3.5 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 5.5 to 6.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.020 |
| Iron (Fe), % | 93.7 to 95.5 | |
| 0 to 0.3 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 4.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.12 |
| Phosphorus (P), % | 0 to 0.080 | |
| 0 |
| Silicon (Si), % | 1.5 to 2.8 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 71.1 to 77 |
| Vanadium (V), % | 0 | |
| 7.5 to 8.5 |
| Zirconium (Zr), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |