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8011A Aluminum vs. 7178 Aluminum

Both 8011A aluminum and 7178 aluminum are aluminum alloys. They have 88% 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 8011A aluminum and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 1.7 to 28
4.5 to 12
Fatigue Strength, MPa 33 to 76
120 to 210
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 100 to 180
240 to 640
Tensile Strength: Yield (Proof), MPa 34 to 170
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 630
480
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 210
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
31
Electrical Conductivity: Equal Weight (Specific), % IACS 180
91

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
10
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.2
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 22
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 8.2 to 200
110 to 2220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 11 to 18
21 to 58
Strength to Weight: Bending, points 18 to 26
28 to 54
Thermal Diffusivity, mm2/s 86
47
Thermal Shock Resistance, points 4.6 to 8.1
10 to 28

Alloy Composition

Aluminum (Al), % 97.5 to 99.1
85.4 to 89.5
Chromium (Cr), % 0 to 0.1
0.18 to 0.28
Copper (Cu), % 0 to 0.1
1.6 to 2.4
Iron (Fe), % 0.5 to 1.0
0 to 0.5
Magnesium (Mg), % 0 to 0.1
2.4 to 3.1
Manganese (Mn), % 0 to 0.1
0 to 0.3
Silicon (Si), % 0.4 to 0.8
0 to 0.4
Titanium (Ti), % 0 to 0.050
0 to 0.2
Zinc (Zn), % 0 to 0.1
6.3 to 7.3
Residuals, % 0
0 to 0.15

Comparable Variants