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6066 Aluminum vs. 7116 Aluminum

Both 6066 aluminum and 7116 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is 6066 aluminum and the bottom bar is 7116 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 7.8 to 17
7.8
Fatigue Strength, MPa 94 to 130
160
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 95 to 240
220
Tensile Strength: Ultimate (UTS), MPa 160 to 400
370
Tensile Strength: Yield (Proof), MPa 93 to 360
330

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 560
520
Specific Heat Capacity, J/kg-K 890
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
46
Electrical Conductivity: Equal Weight (Specific), % IACS 130
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
2.9
Embodied Carbon, kg CO2/kg material 8.3
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1160
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 52
28
Resilience: Unit (Modulus of Resilience), kJ/m3 61 to 920
790
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
47
Strength to Weight: Axial, points 16 to 39
35
Strength to Weight: Bending, points 23 to 43
39
Thermal Diffusivity, mm2/s 61
58
Thermal Shock Resistance, points 6.9 to 17
16

Alloy Composition

Aluminum (Al), % 93 to 97
91.5 to 94.5
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0.7 to 1.2
0.5 to 1.1
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 0.5
0 to 0.3
Magnesium (Mg), % 0.8 to 1.4
0.8 to 1.4
Manganese (Mn), % 0.6 to 1.1
0 to 0.050
Silicon (Si), % 0.9 to 1.8
0 to 0.15
Titanium (Ti), % 0 to 0.2
0 to 0.050
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.25
4.2 to 5.2
Residuals, % 0
0 to 0.15