Grade 35 Titanium vs. Grey Cast Iron
Grade 35 titanium belongs to the titanium alloys classification, while grey cast iron belongs to the iron alloys. There are 29 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 grade 35 titanium and the bottom bar is grey cast iron.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 180 |
| Elongation at Break, % | 5.6 | |
| 9.6 |
| Fatigue Strength, MPa | 330 | |
| 69 to 170 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 69 |
| Shear Strength, MPa | 580 | |
| 180 to 610 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 | |
| 160 to 450 |
| Tensile Strength: Yield (Proof), MPa | 630 | |
| 98 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 280 |
| Melting Completion (Liquidus), °C | 1630 | |
| 1380 |
| Melting Onset (Solidus), °C | 1580 | |
| 1180 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 490 |
| Thermal Conductivity, W/m-K | 7.4 | |
| 46 |
| Thermal Expansion, µm/m-K | 9.3 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.1 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.2 | |
| 8.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 1.9 |
| Density, g/cm3 | 4.6 | |
| 7.5 |
| Embodied Carbon, kg CO2/kg material | 33 | |
| 1.5 |
| Embodied Energy, MJ/kg | 530 | |
| 21 |
| Embodied Water, L/kg | 170 | |
| 44 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 49 | |
| 13 to 37 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1830 | |
| 27 to 240 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 61 | |
| 5.8 to 17 |
| Strength to Weight: Bending, points | 49 | |
| 8.7 to 17 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 13 |
| Thermal Shock Resistance, points | 70 | |
| 6.0 to 17 |
Alloy Composition
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| Aluminum (Al), % | 4.0 to 5.0 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 3.1 to 3.4 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.2 to 0.8 | |
| 92.1 to 93.9 |
| Manganese (Mn), % | 0 | |
| 0.5 to 0.7 |
| Molybdenum (Mo), % | 1.5 to 2.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.9 |
| Silicon (Si), % | 0.2 to 0.4 | |
| 2.5 to 2.8 |
| Sulfur (S), % | 0 | |
| 0 to 0.15 |
| Titanium (Ti), % | 88.4 to 93 | |
| 0 |
| Vanadium (V), % | 1.1 to 2.1 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |