7475 Aluminum vs. 7020 Aluminum
Both 7475 aluminum and 7020 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is 7475 aluminum and the bottom bar is 7020 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 70 |
| Elongation at Break, % | 10 to 12 | |
| 8.4 to 14 |
| Fatigue Strength, MPa | 190 to 210 | |
| 110 to 130 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 320 to 350 | |
| 110 to 230 |
| Tensile Strength: Ultimate (UTS), MPa | 530 to 590 | |
| 190 to 390 |
| Tensile Strength: Yield (Proof), MPa | 440 to 520 | |
| 120 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 210 |
| Melting Completion (Liquidus), °C | 640 | |
| 650 |
| Melting Onset (Solidus), °C | 480 | |
| 610 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 880 |
| Thermal Conductivity, W/m-K | 140 to 160 | |
| 150 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 33 to 42 | |
| 39 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 98 to 120 | |
| 120 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 9.5 |
| Density, g/cm3 | 3.0 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 8.3 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1130 | |
| 1150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 53 to 68 | |
| 23 to 46 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1390 to 1920 | |
| 110 to 690 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 47 |
| Strength to Weight: Axial, points | 49 to 55 | |
| 18 to 37 |
| Strength to Weight: Bending, points | 48 to 52 | |
| 25 to 41 |
| Thermal Diffusivity, mm2/s | 53 to 63 | |
| 59 |
| Thermal Shock Resistance, points | 23 to 26 | |
| 8.3 to 17 |
Alloy Composition
| Aluminum (Al), % | 88.6 to 91.6 | |
| 91.2 to 94.8 |
| Chromium (Cr), % | 0.18 to 0.25 | |
| 0.1 to 0.35 |
| Copper (Cu), % | 1.2 to 1.9 | |
| 0 to 0.2 |
| Iron (Fe), % | 0 to 0.12 | |
| 0 to 0.4 |
| Magnesium (Mg), % | 1.9 to 2.6 | |
| 1.0 to 1.4 |
| Manganese (Mn), % | 0 to 0.060 | |
| 0.050 to 0.5 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.35 |
| Titanium (Ti), % | 0 to 0.060 | |
| 0 to 0.25 |
| Zinc (Zn), % | 5.1 to 6.2 | |
| 4.0 to 5.0 |
| Zirconium (Zr), % | 0 | |
| 0.080 to 0.25 |
| Residuals, % | 0 | |
| 0 to 0.15 |