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6081 Aluminum vs. 2014 Aluminum

Both 6081 aluminum and 2014 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 6081 aluminum and the bottom bar is 2014 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
72
Elongation at Break, % 9.0
1.5 to 16
Fatigue Strength, MPa 110
90 to 160
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 180
130 to 290
Tensile Strength: Ultimate (UTS), MPa 310
190 to 500
Tensile Strength: Yield (Proof), MPa 270
100 to 440

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 610
510
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 180
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
40
Electrical Conductivity: Equal Weight (Specific), % IACS 160
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
6.6 to 56
Resilience: Unit (Modulus of Resilience), kJ/m3 540
76 to 1330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
46
Strength to Weight: Axial, points 32
18 to 46
Strength to Weight: Bending, points 37
25 to 46
Thermal Diffusivity, mm2/s 74
58
Thermal Shock Resistance, points 14
8.4 to 22

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
90.4 to 95
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 0 to 0.1
3.9 to 5.0
Iron (Fe), % 0 to 0.5
0 to 0.7
Magnesium (Mg), % 0.6 to 1.0
0.2 to 0.8
Manganese (Mn), % 0.1 to 0.45
0.4 to 1.2
Silicon (Si), % 0.7 to 1.1
0.5 to 1.2
Titanium (Ti), % 0 to 0.15
0 to 0.15
Zinc (Zn), % 0 to 0.2
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15