7075 Aluminum vs. Titanium 4-4-2
7075 aluminum belongs to the aluminum alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 28 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 7075 aluminum and the bottom bar is titanium 4-4-2.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 110 |
| Elongation at Break, % | 1.8 to 12 | |
| 10 |
| Fatigue Strength, MPa | 110 to 190 | |
| 590 to 620 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 42 |
| Shear Strength, MPa | 150 to 340 | |
| 690 to 750 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 590 | |
| 1150 to 1250 |
| Tensile Strength: Yield (Proof), MPa | 120 to 510 | |
| 1030 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 310 |
| Melting Completion (Liquidus), °C | 640 | |
| 1610 |
| Melting Onset (Solidus), °C | 480 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 540 |
| Thermal Conductivity, W/m-K | 130 | |
| 6.7 |
| Thermal Expansion, µm/m-K | 23 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 39 |
| Density, g/cm3 | 3.0 | |
| 4.7 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 30 |
| Embodied Energy, MJ/kg | 150 | |
| 480 |
| Embodied Water, L/kg | 1120 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 7.8 to 44 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 1870 | |
| 4700 to 5160 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 34 |
| Strength to Weight: Axial, points | 22 to 54 | |
| 68 to 74 |
| Strength to Weight: Bending, points | 28 to 52 | |
| 52 to 55 |
| Thermal Diffusivity, mm2/s | 50 | |
| 2.6 |
| Thermal Shock Resistance, points | 10 to 25 | |
| 86 to 93 |
Alloy Composition
| Aluminum (Al), % | 86.9 to 91.4 | |
| 3.0 to 5.0 |
| Carbon (C), % | 0 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0.18 to 0.28 | |
| 0 |
| Copper (Cu), % | 1.2 to 2.0 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 0.5 | |
| 0 to 0.2 |
| Magnesium (Mg), % | 2.1 to 2.9 | |
| 0 |
| Manganese (Mn), % | 0 to 0.3 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 3.0 to 5.0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.25 |
| Silicon (Si), % | 0 to 0.4 | |
| 0.3 to 0.7 |
| Tin (Sn), % | 0 | |
| 1.5 to 2.5 |
| Titanium (Ti), % | 0 to 0.2 | |
| 85.8 to 92.2 |
| Zinc (Zn), % | 5.1 to 6.1 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.25 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.4 |