Titanium 4-4-2 vs. 7022 Aluminum
Titanium 4-4-2 belongs to the titanium alloys classification, while 7022 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is titanium 4-4-2 and the bottom bar is 7022 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 70 |
| Elongation at Break, % | 10 | |
| 6.3 to 8.0 |
| Fatigue Strength, MPa | 590 to 620 | |
| 140 to 170 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 42 | |
| 26 |
| Shear Strength, MPa | 690 to 750 | |
| 290 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 1150 to 1250 | |
| 490 to 540 |
| Tensile Strength: Yield (Proof), MPa | 1030 to 1080 | |
| 390 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 200 |
| Melting Completion (Liquidus), °C | 1610 | |
| 640 |
| Melting Onset (Solidus), °C | 1560 | |
| 480 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 870 |
| Thermal Conductivity, W/m-K | 6.7 | |
| 140 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 24 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 10 |
| Density, g/cm3 | 4.7 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 30 | |
| 8.5 |
| Embodied Energy, MJ/kg | 480 | |
| 150 |
| Embodied Water, L/kg | 180 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 120 | |
| 29 to 40 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4700 to 5160 | |
| 1100 to 1500 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 47 |
| Strength to Weight: Axial, points | 68 to 74 | |
| 47 to 51 |
| Strength to Weight: Bending, points | 52 to 55 | |
| 47 to 50 |
| Thermal Diffusivity, mm2/s | 2.6 | |
| 54 |
| Thermal Shock Resistance, points | 86 to 93 | |
| 21 to 23 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 5.0 | |
| 87.9 to 92.4 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 0.1 to 0.3 |
| Copper (Cu), % | 0 | |
| 0.5 to 1.0 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.5 |
| Magnesium (Mg), % | 0 | |
| 2.6 to 3.7 |
| Manganese (Mn), % | 0 | |
| 0.1 to 0.4 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Silicon (Si), % | 0.3 to 0.7 | |
| 0 to 0.5 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 85.8 to 92.2 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0 | |
| 4.3 to 5.2 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.15 |