Grade 5 Titanium vs. 7003 Aluminum
Grade 5 titanium belongs to the titanium alloys classification, while 7003 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is grade 5 titanium and the bottom bar is 7003 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 70 |
| Elongation at Break, % | 8.6 to 11 | |
| 11 |
| Fatigue Strength, MPa | 530 to 630 | |
| 130 to 150 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 40 | |
| 26 |
| Shear Strength, MPa | 600 to 710 | |
| 210 to 230 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 350 to 390 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 300 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 200 |
| Melting Completion (Liquidus), °C | 1610 | |
| 630 |
| Melting Onset (Solidus), °C | 1650 | |
| 510 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 870 |
| Thermal Conductivity, W/m-K | 6.8 | |
| 150 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.0 | |
| 36 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 9.5 |
| Density, g/cm3 | 4.4 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 8.1 |
| Embodied Energy, MJ/kg | 610 | |
| 150 |
| Embodied Water, L/kg | 200 | |
| 1140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 37 to 41 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3980 to 5880 | |
| 630 to 710 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 47 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 33 to 37 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 37 to 40 |
| Thermal Diffusivity, mm2/s | 2.7 | |
| 59 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 15 to 17 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 90.6 to 94.5 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 0 to 0.2 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 to 0.35 |
| Magnesium (Mg), % | 0 | |
| 0.5 to 1.0 |
| Manganese (Mn), % | 0 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.3 |
| Titanium (Ti), % | 87.4 to 91 | |
| 0 to 0.2 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Yttrium (Y), % | 0 to 0.0050 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 5.0 to 6.5 |
| Zirconium (Zr), % | 0 | |
| 0.050 to 0.25 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.15 |