Grade 35 Titanium vs. SAE-AISI T8 Steel
Grade 35 titanium belongs to the titanium alloys classification, while SAE-AISI T8 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is grade 35 titanium and the bottom bar is SAE-AISI T8 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 41 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 | |
| 780 to 2140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 250 |
| Melting Completion (Liquidus), °C | 1630 | |
| 1730 |
| Melting Onset (Solidus), °C | 1580 | |
| 1670 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 420 |
| Thermal Conductivity, W/m-K | 7.4 | |
| 18 |
| Thermal Expansion, µm/m-K | 9.3 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 45 |
| Density, g/cm3 | 4.6 | |
| 9.0 |
| Embodied Carbon, kg CO2/kg material | 33 | |
| 10 |
| Embodied Energy, MJ/kg | 530 | |
| 160 |
| Embodied Water, L/kg | 170 | |
| 120 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 12 |
| Stiffness to Weight: Bending, points | 35 | |
| 22 |
| Strength to Weight: Axial, points | 61 | |
| 24 to 66 |
| Strength to Weight: Bending, points | 49 | |
| 21 to 41 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 4.8 |
| Thermal Shock Resistance, points | 70 | |
| 24 to 66 |
Alloy Composition
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| Aluminum (Al), % | 4.0 to 5.0 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.75 to 0.85 |
| Chromium (Cr), % | 0 | |
| 3.8 to 4.5 |
| Cobalt (Co), % | 0 | |
| 4.3 to 5.8 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.2 to 0.8 | |
| 69.3 to 75.4 |
| Manganese (Mn), % | 0 | |
| 0.2 to 0.4 |
| Molybdenum (Mo), % | 1.5 to 2.5 | |
| 0.4 to 1.0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0.2 to 0.4 | |
| 0.2 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 88.4 to 93 | |
| 0 |
| Tungsten (W), % | 0 | |
| 13.3 to 14.8 |
| Vanadium (V), % | 1.1 to 2.1 | |
| 1.8 to 2.4 |
| Residuals, % | 0 to 0.4 | |
| 0 |