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7116 Aluminum vs. 6261 Aluminum

Both 7116 aluminum and 6261 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 7116 aluminum and the bottom bar is 6261 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 7.8
9.0 to 16
Fatigue Strength, MPa 160
60 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 220
90 to 180
Tensile Strength: Ultimate (UTS), MPa 370
150 to 300
Tensile Strength: Yield (Proof), MPa 330
100 to 260

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 520
610
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
180
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46
48
Electrical Conductivity: Equal Weight (Specific), % IACS 140
160

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
21 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 790
77 to 500
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 35
15 to 31
Strength to Weight: Bending, points 39
23 to 37
Thermal Diffusivity, mm2/s 58
75
Thermal Shock Resistance, points 16
6.5 to 13

Alloy Composition

Aluminum (Al), % 91.5 to 94.5
96.6 to 98.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.5 to 1.1
0.15 to 0.4
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.4
Magnesium (Mg), % 0.8 to 1.4
0.7 to 1.0
Manganese (Mn), % 0 to 0.050
0.2 to 0.35
Silicon (Si), % 0 to 0.15
0.4 to 0.7
Titanium (Ti), % 0 to 0.050
0 to 0.1
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0 to 0.2
Residuals, % 0
0 to 0.15