Grade 2 Titanium vs. 5657 Aluminum
Grade 2 titanium belongs to the titanium alloys classification, while 5657 aluminum belongs to the aluminum alloys. There are 31 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 2 titanium and the bottom bar is 5657 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 | |
| 40 to 50 |
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 68 |
| Elongation at Break, % | 23 | |
| 6.6 to 15 |
| Fatigue Strength, MPa | 250 | |
| 74 to 88 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 38 | |
| 26 |
| Shear Strength, MPa | 270 | |
| 92 to 110 |
| Tensile Strength: Ultimate (UTS), MPa | 420 | |
| 150 to 200 |
| Tensile Strength: Yield (Proof), MPa | 360 | |
| 140 to 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 320 | |
| 180 |
| Melting Completion (Liquidus), °C | 1660 | |
| 660 |
| Melting Onset (Solidus), °C | 1610 | |
| 640 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 900 |
| Thermal Conductivity, W/m-K | 22 | |
| 210 |
| Thermal Expansion, µm/m-K | 9.0 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.6 | |
| 54 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.2 | |
| 180 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 9.5 |
| Density, g/cm3 | 4.5 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 31 | |
| 8.4 |
| Embodied Energy, MJ/kg | 510 | |
| 160 |
| Embodied Water, L/kg | 110 | |
| 1200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 92 | |
| 9.7 to 27 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 600 | |
| 140 to 200 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 50 |
| Strength to Weight: Axial, points | 26 | |
| 15 to 20 |
| Strength to Weight: Bending, points | 28 | |
| 23 to 28 |
| Thermal Diffusivity, mm2/s | 8.9 | |
| 84 |
| Thermal Shock Resistance, points | 32 | |
| 6.7 to 8.6 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 98.5 to 99.4 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.1 |
| Gallium (Ga), % | 0 | |
| 0 to 0.030 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 0 to 0.1 |
| Magnesium (Mg), % | 0 | |
| 0.6 to 1.0 |
| Manganese (Mn), % | 0 | |
| 0 to 0.030 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0 to 0.080 |
| Titanium (Ti), % | 98.9 to 100 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0 to 0.050 |
| Zinc (Zn), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.050 |