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7108A Aluminum vs. 7075 Aluminum

Both 7108A aluminum and 7075 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 (1, in this case) are not shown.

For each property being compared, the top bar is 7108A 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, % 11 to 13
1.8 to 12
Fatigue Strength, MPa 120 to 130
110 to 190
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
26
Shear Strength, MPa 210
150 to 340
Tensile Strength: Ultimate (UTS), MPa 350
240 to 590
Tensile Strength: Yield (Proof), MPa 290 to 300
120 to 510

Thermal Properties

Latent Heat of Fusion, J/g 380
380
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 520
480
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
33
Electrical Conductivity: Equal Weight (Specific), % IACS 110
98

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 2.9
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
7.8 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
110 to 1870
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
46
Strength to Weight: Axial, points 33 to 34
22 to 54
Strength to Weight: Bending, points 38
28 to 52
Thermal Diffusivity, mm2/s 59
50
Thermal Shock Resistance, points 15 to 16
10 to 25

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
86.9 to 91.4
Chromium (Cr), % 0 to 0.040
0.18 to 0.28
Copper (Cu), % 0 to 0.050
1.2 to 2.0
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Magnesium (Mg), % 0.7 to 1.5
2.1 to 2.9
Manganese (Mn), % 0 to 0.050
0 to 0.3
Silicon (Si), % 0 to 0.2
0 to 0.4
Titanium (Ti), % 0 to 0.030
0 to 0.2
Zinc (Zn), % 4.8 to 5.8
5.1 to 6.1
Zirconium (Zr), % 0.15 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants