6061 Aluminum vs. 7075 Aluminum
Both 6061 aluminum and 7075 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common.
For each property being compared, the top bar is 6061 aluminum and the bottom bar is 7075 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 70 |
| Elongation at Break, % | 3.4 to 20 | |
| 1.8 to 12 |
| Fatigue Strength, MPa | 58 to 110 | |
| 110 to 190 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 84 to 210 | |
| 150 to 340 |
| Tensile Strength: Ultimate (UTS), MPa | 130 to 410 | |
| 240 to 590 |
| Tensile Strength: Yield (Proof), MPa | 76 to 370 | |
| 120 to 510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 200 |
| Melting Completion (Liquidus), °C | 650 | |
| 640 |
| Melting Onset (Solidus), °C | 580 | |
| 480 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 870 |
| Thermal Conductivity, W/m-K | 170 | |
| 130 |
| Thermal Expansion, µm/m-K | 24 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 43 | |
| 33 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 140 | |
| 98 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 10 |
| Calomel Potential, mV | -740 | |
| -750 |
| Density, g/cm3 | 2.7 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 8.3 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1180 | |
| 1120 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 3.8 to 81 | |
| 7.8 to 44 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 42 to 1000 | |
| 110 to 1870 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 50 | |
| 46 |
| Strength to Weight: Axial, points | 13 to 42 | |
| 22 to 54 |
| Strength to Weight: Bending, points | 21 to 45 | |
| 28 to 52 |
| Thermal Diffusivity, mm2/s | 68 | |
| 50 |
| Thermal Shock Resistance, points | 5.7 to 18 | |
| 10 to 25 |
Alloy Composition
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| Aluminum (Al), % | 95.9 to 98.6 | |
| 86.9 to 91.4 |
| Chromium (Cr), % | 0.040 to 0.35 | |
| 0.18 to 0.28 |
| Copper (Cu), % | 0.15 to 0.4 | |
| 1.2 to 2.0 |
| Iron (Fe), % | 0 to 0.7 | |
| 0 to 0.5 |
| Magnesium (Mg), % | 0.8 to 1.2 | |
| 2.1 to 2.9 |
| Manganese (Mn), % | 0 to 0.15 | |
| 0 to 0.3 |
| Silicon (Si), % | 0.4 to 0.8 | |
| 0 to 0.4 |
| Titanium (Ti), % | 0 to 0.15 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0 to 0.25 | |
| 5.1 to 6.1 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.25 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |