6018 Aluminum vs. Titanium 4-4-2
6018 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 (3, in this case) are not shown.
For each property being compared, the top bar is 6018 aluminum and the bottom bar is titanium 4-4-2.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 110 |
| Elongation at Break, % | 9.0 to 9.1 | |
| 10 |
| Fatigue Strength, MPa | 85 to 89 | |
| 590 to 620 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 42 |
| Shear Strength, MPa | 170 to 180 | |
| 690 to 750 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 300 | |
| 1150 to 1250 |
| Tensile Strength: Yield (Proof), MPa | 220 to 230 | |
| 1030 to 1080 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 310 |
| Melting Completion (Liquidus), °C | 640 | |
| 1610 |
| Melting Onset (Solidus), °C | 570 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 890 | |
| 540 |
| Thermal Conductivity, W/m-K | 170 | |
| 6.7 |
| Thermal Expansion, µm/m-K | 23 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 39 |
| Density, g/cm3 | 2.9 | |
| 4.7 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 30 |
| Embodied Energy, MJ/kg | 150 | |
| 480 |
| Embodied Water, L/kg | 1180 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 25 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 360 to 380 | |
| 4700 to 5160 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 48 | |
| 34 |
| Strength to Weight: Axial, points | 28 to 29 | |
| 68 to 74 |
| Strength to Weight: Bending, points | 34 to 35 | |
| 52 to 55 |
| Thermal Diffusivity, mm2/s | 65 | |
| 2.6 |
| Thermal Shock Resistance, points | 13 | |
| 86 to 93 |
Alloy Composition
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| Aluminum (Al), % | 93.1 to 97.8 | |
| 3.0 to 5.0 |
| Bismuth (Bi), % | 0.4 to 0.7 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 |
| Copper (Cu), % | 0.15 to 0.4 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 0.7 | |
| 0 to 0.2 |
| Lead (Pb), % | 0.4 to 1.2 | |
| 0 |
| Magnesium (Mg), % | 0.6 to 1.2 | |
| 0 |
| Manganese (Mn), % | 0.3 to 0.8 | |
| 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), % | 0.5 to 1.2 | |
| 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), % | 0 to 0.3 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.4 |