7050 Aluminum vs. 7475 Aluminum
Both 7050 aluminum and 7475 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 7475 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 70 |
| Elongation at Break, % | 2.2 to 12 | |
| 10 to 12 |
| Fatigue Strength, MPa | 130 to 210 | |
| 190 to 210 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 280 to 330 | |
| 320 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 570 | |
| 530 to 590 |
| Tensile Strength: Yield (Proof), MPa | 390 to 500 | |
| 440 to 520 |
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 to 160 |
| Thermal Expansion, µm/m-K | 24 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 35 | |
| 33 to 42 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 98 to 120 |
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 | |
| 53 to 68 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1110 to 1760 | |
| 1390 to 1920 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 45 | |
| 46 |
| Strength to Weight: Axial, points | 45 to 51 | |
| 49 to 55 |
| Strength to Weight: Bending, points | 45 to 50 | |
| 48 to 52 |
| Thermal Diffusivity, mm2/s | 54 | |
| 53 to 63 |
| Thermal Shock Resistance, points | 21 to 25 | |
| 23 to 26 |
Alloy Composition
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| Aluminum (Al), % | 87.3 to 92.1 | |
| 88.6 to 91.6 |
| Chromium (Cr), % | 0 to 0.040 | |
| 0.18 to 0.25 |
| Copper (Cu), % | 2.0 to 2.6 | |
| 1.2 to 1.9 |
| Iron (Fe), % | 0 to 0.15 | |
| 0 to 0.12 |
| Magnesium (Mg), % | 1.9 to 2.6 | |
| 1.9 to 2.6 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.060 |
| Silicon (Si), % | 0 to 0.12 | |
| 0 to 0.1 |
| Titanium (Ti), % | 0 to 0.060 | |
| 0 to 0.060 |
| Zinc (Zn), % | 5.7 to 6.7 | |
| 5.1 to 6.2 |
| Zirconium (Zr), % | 0.080 to 0.15 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |