7108A Aluminum vs. 7050 Aluminum
Both 7108A aluminum and 7050 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is 7108A aluminum and the bottom bar is 7050 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 69 | |
70 |
Elongation at Break, % | 11 to 13 | |
2.2 to 12 |
Fatigue Strength, MPa | 120 to 130 | |
130 to 210 |
Poisson's Ratio | 0.33 | |
0.32 |
Shear Modulus, GPa | 26 | |
26 |
Shear Strength, MPa | 210 | |
280 to 330 |
Tensile Strength: Ultimate (UTS), MPa | 350 | |
490 to 570 |
Tensile Strength: Yield (Proof), MPa | 290 to 300 | |
390 to 500 |
Thermal Properties
Latent Heat of Fusion, J/g | 380 | |
370 |
Maximum Temperature: Mechanical, °C | 210 | |
190 |
Melting Completion (Liquidus), °C | 630 | |
630 |
Melting Onset (Solidus), °C | 520 | |
490 |
Specific Heat Capacity, J/kg-K | 870 | |
860 |
Thermal Conductivity, W/m-K | 150 | |
140 |
Thermal Expansion, µm/m-K | 24 | |
24 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 36 | |
35 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
100 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 10 | |
10 |
Density, g/cm3 | 2.9 | |
3.1 |
Embodied Carbon, kg CO2/kg material | 8.3 | |
8.2 |
Embodied Energy, MJ/kg | 150 | |
150 |
Embodied Water, L/kg | 1150 | |
1120 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 38 to 44 | |
10 to 55 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 610 to 640 | |
1110 to 1760 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 47 | |
45 |
Strength to Weight: Axial, points | 33 to 34 | |
45 to 51 |
Strength to Weight: Bending, points | 38 | |
45 to 50 |
Thermal Diffusivity, mm2/s | 59 | |
54 |
Thermal Shock Resistance, points | 15 to 16 | |
21 to 25 |
Alloy Composition
Aluminum (Al), % | 91.6 to 94.4 | |
87.3 to 92.1 |
Chromium (Cr), % | 0 to 0.040 | |
0 to 0.040 |
Copper (Cu), % | 0 to 0.050 | |
2.0 to 2.6 |
Gallium (Ga), % | 0 to 0.030 | |
0 |
Iron (Fe), % | 0 to 0.3 | |
0 to 0.15 |
Magnesium (Mg), % | 0.7 to 1.5 | |
1.9 to 2.6 |
Manganese (Mn), % | 0 to 0.050 | |
0 to 0.1 |
Silicon (Si), % | 0 to 0.2 | |
0 to 0.12 |
Titanium (Ti), % | 0 to 0.030 | |
0 to 0.060 |
Zinc (Zn), % | 4.8 to 5.8 | |
5.7 to 6.7 |
Zirconium (Zr), % | 0.15 to 0.25 | |
0.080 to 0.15 |
Residuals, % | 0 | |
0 to 0.15 |