Titanium 4-4-2 vs. Ductile Cast Iron
Titanium 4-4-2 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 titanium 4-4-2 and the bottom bar is ductile cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 170 to 180 |
| Elongation at Break, % | 10 | |
| 2.1 to 20 |
| Poisson's Ratio | 0.32 | |
| 0.28 to 0.31 |
| Shear Modulus, GPa | 42 | |
| 64 to 70 |
| Shear Strength, MPa | 690 to 750 | |
| 420 to 800 |
| Tensile Strength: Ultimate (UTS), MPa | 1150 to 1250 | |
| 460 to 920 |
| Tensile Strength: Yield (Proof), MPa | 1030 to 1080 | |
| 310 to 670 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 290 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1160 |
| Melting Onset (Solidus), °C | 1560 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 490 |
| Thermal Conductivity, W/m-K | 6.7 | |
| 31 to 36 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 1.9 |
| Density, g/cm3 | 4.7 | |
| 7.1 to 7.5 |
| Embodied Carbon, kg CO2/kg material | 30 | |
| 1.5 |
| Embodied Energy, MJ/kg | 480 | |
| 21 |
| Embodied Water, L/kg | 180 | |
| 43 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 17 to 80 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4700 to 5160 | |
| 280 to 1330 |
| Stiffness to Weight: Axial, points | 13 | |
| 12 to 14 |
| Stiffness to Weight: Bending, points | 34 | |
| 24 to 26 |
| Strength to Weight: Axial, points | 68 to 74 | |
| 17 to 35 |
| Strength to Weight: Bending, points | 52 to 55 | |
| 18 to 29 |
| Thermal Diffusivity, mm2/s | 2.6 | |
| 8.9 to 10 |
| Thermal Shock Resistance, points | 86 to 93 | |
| 17 to 35 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 5.0 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 3.0 to 3.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 93.7 to 95.5 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.080 |
| Silicon (Si), % | 0.3 to 0.7 | |
| 1.5 to 2.8 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 85.8 to 92.2 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |