Grade 24 Titanium vs. SAE-AISI T15 Steel
Grade 24 titanium belongs to the titanium alloys classification, while SAE-AISI T15 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is grade 24 titanium and the bottom bar is SAE-AISI T15 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 | 40 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 1010 | |
| 830 to 2240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 250 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1690 |
| Melting Onset (Solidus), °C | 1560 | |
| 1640 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 430 |
| Thermal Conductivity, W/m-K | 7.1 | |
| 21 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 43 | |
| 16 |
| Embodied Energy, MJ/kg | 710 | |
| 250 |
| Embodied Water, L/kg | 310 | |
| 140 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 22 |
| Strength to Weight: Axial, points | 63 | |
| 26 to 71 |
| Strength to Weight: Bending, points | 50 | |
| 22 to 43 |
| Thermal Diffusivity, mm2/s | 2.9 | |
| 5.6 |
| Thermal Shock Resistance, points | 72 | |
| 26 to 70 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 1.5 to 1.6 |
| Chromium (Cr), % | 0 | |
| 3.8 to 5.0 |
| Cobalt (Co), % | 0 | |
| 4.8 to 5.3 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 67.5 to 73.5 |
| Manganese (Mn), % | 0 | |
| 0.15 to 0.4 |
| Molybdenum (Mo), % | 0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 87.5 to 91 | |
| 0 |
| Tungsten (W), % | 0 | |
| 11.8 to 13 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 4.5 to 5.3 |
| Residuals, % | 0 to 0.4 | |
| 0 |