Grade 19 Titanium vs. Ductile Cast Iron
Grade 19 titanium belongs to the titanium alloys classification, while ductile cast iron belongs to the iron 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 grade 19 titanium and the bottom bar is ductile cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 170 to 180 |
| Elongation at Break, % | 5.6 to 17 | |
| 2.1 to 20 |
| Poisson's Ratio | 0.32 | |
| 0.28 to 0.31 |
| Shear Modulus, GPa | 47 | |
| 64 to 70 |
| Shear Strength, MPa | 550 to 750 | |
| 420 to 800 |
| Tensile Strength: Ultimate (UTS), MPa | 890 to 1300 | |
| 460 to 920 |
| Tensile Strength: Yield (Proof), MPa | 870 to 1170 | |
| 310 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 370 | |
| 290 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1160 |
| Melting Onset (Solidus), °C | 1600 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 490 |
| Thermal Conductivity, W/m-K | 6.2 | |
| 31 to 36 |
| Thermal Expansion, µm/m-K | 9.1 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 45 | |
| 1.9 |
| Density, g/cm3 | 5.0 | |
| 7.1 to 7.5 |
| Embodied Carbon, kg CO2/kg material | 47 | |
| 1.5 |
| Embodied Energy, MJ/kg | 760 | |
| 21 |
| Embodied Water, L/kg | 230 | |
| 43 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 70 to 150 | |
| 17 to 80 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3040 to 5530 | |
| 280 to 1330 |
| Stiffness to Weight: Axial, points | 14 | |
| 12 to 14 |
| Stiffness to Weight: Bending, points | 33 | |
| 24 to 26 |
| Strength to Weight: Axial, points | 49 to 72 | |
| 17 to 35 |
| Strength to Weight: Bending, points | 41 to 53 | |
| 18 to 29 |
| Thermal Diffusivity, mm2/s | 2.4 | |
| 8.9 to 10 |
| Thermal Shock Resistance, points | 57 to 83 | |
| 17 to 35 |
Alloy Composition
| Aluminum (Al), % | 3.0 to 4.0 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 3.0 to 3.5 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 93.7 to 95.5 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.080 |
| Silicon (Si), % | 0 | |
| 1.5 to 2.8 |
| Titanium (Ti), % | 71.1 to 77 | |
| 0 |
| Vanadium (V), % | 7.5 to 8.5 | |
| 0 |
| Zirconium (Zr), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |