SAE-AISI T15 Steel vs. Grade 5 Titanium
SAE-AISI T15 steel belongs to the iron alloys classification, while grade 5 titanium belongs to the titanium alloys. There are 21 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 SAE-AISI T15 steel and the bottom bar is grade 5 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 110 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 76 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 2240 | |
| 1000 to 1190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 410 |
| Melting Completion (Liquidus), °C | 1690 | |
| 1610 |
| Melting Onset (Solidus), °C | 1640 | |
| 1650 |
| Specific Heat Capacity, J/kg-K | 430 | |
| 560 |
| Thermal Conductivity, W/m-K | 21 | |
| 6.8 |
| Thermal Expansion, µm/m-K | 12 | |
| 8.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 43 | |
| 36 |
| Density, g/cm3 | 8.7 | |
| 4.4 |
| Embodied Carbon, kg CO2/kg material | 16 | |
| 38 |
| Embodied Energy, MJ/kg | 250 | |
| 610 |
| Embodied Water, L/kg | 140 | |
| 200 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 22 | |
| 35 |
| Strength to Weight: Axial, points | 26 to 71 | |
| 62 to 75 |
| Strength to Weight: Bending, points | 22 to 43 | |
| 50 to 56 |
| Thermal Diffusivity, mm2/s | 5.6 | |
| 2.7 |
| Thermal Shock Resistance, points | 26 to 70 | |
| 76 to 91 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 5.5 to 6.8 |
| Carbon (C), % | 1.5 to 1.6 | |
| 0 to 0.080 |
| Chromium (Cr), % | 3.8 to 5.0 | |
| 0 |
| Cobalt (Co), % | 4.8 to 5.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 67.5 to 73.5 | |
| 0 to 0.4 |
| Manganese (Mn), % | 0.15 to 0.4 | |
| 0 |
| Molybdenum (Mo), % | 0 to 1.0 | |
| 0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.2 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.4 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 87.4 to 91 |
| Tungsten (W), % | 11.8 to 13 | |
| 0 |
| Vanadium (V), % | 4.5 to 5.3 | |
| 3.5 to 4.5 |
| Yttrium (Y), % | 0 | |
| 0 to 0.0050 |
| Residuals, % | 0 | |
| 0 to 0.4 |