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7075-T6511 Aluminum vs. 8090-T6511 Aluminum

Both 7075-T6511 aluminum and 8090-T6511 aluminum are aluminum alloys. Both are furnished in the T6511 temper. 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 7075-T6511 aluminum and the bottom bar is 8090-T6511 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
67
Elongation at Break, % 5.6
4.5
Fatigue Strength, MPa 180
140
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
25
Tensile Strength: Ultimate (UTS), MPa 580
490
Tensile Strength: Yield (Proof), MPa 510
420

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 200
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 130
160
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
20
Electrical Conductivity: Equal Weight (Specific), % IACS 98
66

Otherwise Unclassified Properties

Base Metal Price, % relative 10
18
Density, g/cm3 3.0
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.6
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1120
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1870
1330
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
50
Strength to Weight: Axial, points 54
49
Strength to Weight: Bending, points 51
50
Thermal Diffusivity, mm2/s 50
60
Thermal Shock Resistance, points 25
22

Alloy Composition


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Aluminum (Al), % 86.9 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 0.5
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 0.3
0 to 0.1
Silicon (Si), % 0 to 0.4
0 to 0.2
Titanium (Ti), % 0 to 0.2
0 to 0.1
Zinc (Zn), % 5.1 to 6.1
0 to 0.25
Zirconium (Zr), % 0 to 0.25
0.040 to 0.16
Residuals, % 0 to 0.15
0 to 0.15