7175 Aluminum vs. 8090 Aluminum
Both 7175 aluminum and 8090 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 29 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 7175 aluminum and the bottom bar is 8090 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 67 |
| Elongation at Break, % | 3.8 to 5.9 | |
| 3.5 to 13 |
| Fatigue Strength, MPa | 150 to 180 | |
| 91 to 140 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 25 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 570 | |
| 340 to 490 |
| Tensile Strength: Yield (Proof), MPa | 430 to 490 | |
| 210 to 420 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 190 |
| Melting Completion (Liquidus), °C | 640 | |
| 660 |
| Melting Onset (Solidus), °C | 480 | |
| 600 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 960 |
| Thermal Conductivity, W/m-K | 140 | |
| 95 to 160 |
| Thermal Expansion, µm/m-K | 23 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 33 | |
| 20 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 99 | |
| 66 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 18 |
| Density, g/cm3 | 3.0 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 8.6 |
| Embodied Energy, MJ/kg | 150 | |
| 170 |
| Embodied Water, L/kg | 1130 | |
| 1160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 29 | |
| 16 to 41 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1310 to 1730 | |
| 340 to 1330 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 46 | |
| 50 |
| Strength to Weight: Axial, points | 48 to 52 | |
| 34 to 49 |
| Strength to Weight: Bending, points | 48 to 51 | |
| 39 to 50 |
| Thermal Diffusivity, mm2/s | 53 | |
| 36 to 60 |
| Thermal Shock Resistance, points | 23 to 25 | |
| 15 to 22 |
Alloy Composition
| Aluminum (Al), % | 88 to 91.4 | |
| 93 to 98.4 |
| Chromium (Cr), % | 0.18 to 0.28 | |
| 0 to 0.1 |
| Copper (Cu), % | 1.2 to 2.0 | |
| 1.0 to 1.6 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.3 |
| Lithium (Li), % | 0 | |
| 2.2 to 2.7 |
| Magnesium (Mg), % | 2.1 to 2.9 | |
| 0.6 to 1.3 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 to 0.2 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 to 0.1 |
| Zinc (Zn), % | 5.1 to 6.1 | |
| 0 to 0.25 |
| Zirconium (Zr), % | 0 | |
| 0.040 to 0.16 |
| Residuals, % | 0 | |
| 0 to 0.15 |