ZA-27 vs. 7050 Aluminum
ZA-27 belongs to the zinc alloys classification, while 7050 aluminum belongs to the aluminum alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ZA-27 and the bottom bar is 7050 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 78 | |
| 70 |
| Elongation at Break, % | 2.0 to 4.5 | |
| 2.2 to 12 |
| Fatigue Strength, MPa | 110 to 170 | |
| 130 to 210 |
| Poisson's Ratio | 0.27 | |
| 0.32 |
| Shear Modulus, GPa | 31 | |
| 26 |
| Shear Strength, MPa | 230 to 330 | |
| 280 to 330 |
| Tensile Strength: Ultimate (UTS), MPa | 400 to 430 | |
| 490 to 570 |
| Tensile Strength: Yield (Proof), MPa | 260 to 370 | |
| 390 to 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 370 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 190 |
| Melting Completion (Liquidus), °C | 480 | |
| 630 |
| Melting Onset (Solidus), °C | 380 | |
| 490 |
| Specific Heat Capacity, J/kg-K | 530 | |
| 860 |
| Thermal Conductivity, W/m-K | 130 | |
| 140 |
| Thermal Expansion, µm/m-K | 26 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 30 | |
| 35 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 53 | |
| 100 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 10 |
| Density, g/cm3 | 5.0 | |
| 3.1 |
| Embodied Carbon, kg CO2/kg material | 4.2 | |
| 8.2 |
| Embodied Energy, MJ/kg | 80 | |
| 150 |
| Embodied Water, L/kg | 570 | |
| 1120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 8.1 to 18 | |
| 10 to 55 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 420 to 890 | |
| 1110 to 1760 |
| Stiffness to Weight: Axial, points | 8.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 28 | |
| 45 |
| Strength to Weight: Axial, points | 22 to 24 | |
| 45 to 51 |
| Strength to Weight: Bending, points | 24 to 25 | |
| 45 to 50 |
| Thermal Diffusivity, mm2/s | 47 | |
| 54 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 21 to 25 |
Alloy Composition
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| Aluminum (Al), % | 25 to 28 | |
| 87.3 to 92.1 |
| Cadmium (Cd), % | 0 to 0.0060 | |
| 0 |
| Chromium (Cr), % | 0 | |
| 0 to 0.040 |
| Copper (Cu), % | 2.0 to 2.5 | |
| 2.0 to 2.6 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.15 |
| Lead (Pb), % | 0 to 0.0060 | |
| 0 |
| Magnesium (Mg), % | 0.010 to 0.020 | |
| 1.9 to 2.6 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 to 0.020 | |
| 0 |
| Silicon (Si), % | 0 to 0.080 | |
| 0 to 0.12 |
| Tin (Sn), % | 0 to 0.0030 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.060 |
| Zinc (Zn), % | 69.3 to 73 | |
| 5.7 to 6.7 |
| Zirconium (Zr), % | 0 | |
| 0.080 to 0.15 |
| Residuals, % | 0 | |
| 0 to 0.15 |