7049 Aluminum vs. 771.0 Aluminum
Both 7049 aluminum and 771.0 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 (2, in this case) are not shown.
For each property being compared, the top bar is 7049 aluminum and the bottom bar is 771.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 140 | |
| 85 to 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 70 |
| Elongation at Break, % | 6.2 to 7.0 | |
| 1.7 to 6.5 |
| Fatigue Strength, MPa | 160 to 170 | |
| 92 to 180 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 27 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 510 to 530 | |
| 250 to 370 |
| Tensile Strength: Yield (Proof), MPa | 420 to 450 | |
| 210 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 180 |
| Melting Completion (Liquidus), °C | 640 | |
| 630 |
| Melting Onset (Solidus), °C | 480 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 860 | |
| 870 |
| Thermal Conductivity, W/m-K | 130 | |
| 140 to 150 |
| Thermal Expansion, µm/m-K | 23 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 36 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 82 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 9.5 |
| Density, g/cm3 | 3.1 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 8.0 |
| Embodied Energy, MJ/kg | 140 | |
| 150 |
| Embodied Water, L/kg | 1110 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 34 | |
| 4.4 to 20 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1270 to 1440 | |
| 310 to 900 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 45 | |
| 46 |
| Strength to Weight: Axial, points | 46 to 47 | |
| 23 to 35 |
| Strength to Weight: Bending, points | 46 to 47 | |
| 29 to 39 |
| Thermal Diffusivity, mm2/s | 51 | |
| 54 to 58 |
| Thermal Shock Resistance, points | 22 to 23 | |
| 11 to 16 |
Alloy Composition
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| Aluminum (Al), % | 85.7 to 89.5 | |
| 90.5 to 92.5 |
| Chromium (Cr), % | 0.1 to 0.22 | |
| 0.060 to 0.2 |
| Copper (Cu), % | 1.2 to 1.9 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.15 |
| Magnesium (Mg), % | 2.0 to 2.9 | |
| 0.8 to 1.0 |
| Manganese (Mn), % | 0 to 0.2 | |
| 0 to 0.1 |
| Silicon (Si), % | 0 to 0.25 | |
| 0 to 0.15 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0.1 to 0.2 |
| Zinc (Zn), % | 7.2 to 8.2 | |
| 6.5 to 7.5 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |