7050 Aluminum vs. 7175 Aluminum
Both 7050 aluminum and 7175 aluminum are aluminum alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is 7050 aluminum and the bottom bar is 7175 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 70 |
| Elongation at Break, % | 2.2 to 12 | |
| 3.8 to 5.9 |
| Fatigue Strength, MPa | 130 to 210 | |
| 150 to 180 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 280 to 330 | |
| 290 to 330 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 570 | |
| 520 to 570 |
| Tensile Strength: Yield (Proof), MPa | 390 to 500 | |
| 430 to 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 190 | |
| 180 |
| Melting Completion (Liquidus), °C | 630 | |
| 640 |
| Melting Onset (Solidus), °C | 490 | |
| 480 |
| Specific Heat Capacity, J/kg-K | 860 | |
| 870 |
| Thermal Conductivity, W/m-K | 140 | |
| 140 |
| Thermal Expansion, µm/m-K | 24 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 35 | |
| 33 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 99 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 10 |
| Density, g/cm3 | 3.1 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 8.2 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1120 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 10 to 55 | |
| 18 to 29 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1110 to 1760 | |
| 1310 to 1730 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 45 | |
| 46 |
| Strength to Weight: Axial, points | 45 to 51 | |
| 48 to 52 |
| Strength to Weight: Bending, points | 45 to 50 | |
| 48 to 51 |
| Thermal Diffusivity, mm2/s | 54 | |
| 53 |
| Thermal Shock Resistance, points | 21 to 25 | |
| 23 to 25 |
Alloy Composition
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| Aluminum (Al), % | 87.3 to 92.1 | |
| 88 to 91.4 |
| Chromium (Cr), % | 0 to 0.040 | |
| 0.18 to 0.28 |
| Copper (Cu), % | 2.0 to 2.6 | |
| 1.2 to 2.0 |
| Iron (Fe), % | 0 to 0.15 | |
| 0 to 0.2 |
| Magnesium (Mg), % | 1.9 to 2.6 | |
| 2.1 to 2.9 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Silicon (Si), % | 0 to 0.12 | |
| 0 to 0.15 |
| Titanium (Ti), % | 0 to 0.060 | |
| 0 to 0.1 |
| Zinc (Zn), % | 5.7 to 6.7 | |
| 5.1 to 6.1 |
| Zirconium (Zr), % | 0.080 to 0.15 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |