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6081 Aluminum vs. 7076 Aluminum

Both 6081 aluminum and 7076 aluminum are aluminum alloys. They have a moderately high 91% 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 6081 aluminum and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 9.0
6.2
Fatigue Strength, MPa 110
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 180
310
Tensile Strength: Ultimate (UTS), MPa 310
530
Tensile Strength: Yield (Proof), MPa 270
460

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 610
460
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 180
140
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
35
Electrical Conductivity: Equal Weight (Specific), % IACS 160
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
31
Resilience: Unit (Modulus of Resilience), kJ/m3 540
1510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 32
49
Strength to Weight: Bending, points 37
48
Thermal Diffusivity, mm2/s 74
54
Thermal Shock Resistance, points 14
23

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
86.9 to 91.2
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0.3 to 1.0
Iron (Fe), % 0 to 0.5
0 to 0.6
Magnesium (Mg), % 0.6 to 1.0
1.2 to 2.0
Manganese (Mn), % 0.1 to 0.45
0.3 to 0.8
Silicon (Si), % 0.7 to 1.1
0 to 0.4
Titanium (Ti), % 0 to 0.15
0 to 0.2
Zinc (Zn), % 0 to 0.2
7.0 to 8.0
Residuals, % 0
0 to 0.15