Grade 31 Titanium vs. 6063 Aluminum
Grade 31 titanium belongs to the titanium alloys classification, while 6063 aluminum belongs to the aluminum 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 31 titanium and the bottom bar is 6063 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 68 |
| Elongation at Break, % | 20 | |
| 7.3 to 21 |
| Fatigue Strength, MPa | 300 | |
| 39 to 95 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 41 | |
| 26 |
| Shear Strength, MPa | 320 | |
| 70 to 190 |
| Tensile Strength: Ultimate (UTS), MPa | 510 | |
| 110 to 300 |
| Tensile Strength: Yield (Proof), MPa | 450 | |
| 49 to 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 320 | |
| 160 |
| Melting Completion (Liquidus), °C | 1660 | |
| 650 |
| Melting Onset (Solidus), °C | 1610 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 900 |
| Thermal Conductivity, W/m-K | 21 | |
| 190 to 220 |
| Thermal Expansion, µm/m-K | 8.7 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 49 to 58 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.9 | |
| 160 to 190 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 36 | |
| 8.3 |
| Embodied Energy, MJ/kg | 600 | |
| 150 |
| Embodied Water, L/kg | 230 | |
| 1190 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 99 | |
| 13 to 27 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 940 | |
| 18 to 540 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 50 |
| Strength to Weight: Axial, points | 32 | |
| 11 to 31 |
| Strength to Weight: Bending, points | 32 | |
| 18 to 37 |
| Thermal Diffusivity, mm2/s | 8.5 | |
| 79 to 89 |
| Thermal Shock Resistance, points | 39 | |
| 4.8 to 13 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 97.5 to 99.4 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 0 to 0.1 |
| Cobalt (Co), % | 0.2 to 0.8 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.1 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 0 to 0.35 |
| Magnesium (Mg), % | 0 | |
| 0.45 to 0.9 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.35 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0.2 to 0.6 |
| Titanium (Ti), % | 97.9 to 99.76 | |
| 0 to 0.1 |
| Zinc (Zn), % | 0 | |
| 0 to 0.1 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.15 |