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6063A Aluminum vs. 7076 Aluminum

Both 6063A 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 6063A aluminum and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 6.7 to 18
6.2
Fatigue Strength, MPa 53 to 80
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
27
Shear Strength, MPa 78 to 150
310
Tensile Strength: Ultimate (UTS), MPa 130 to 260
530
Tensile Strength: Yield (Proof), MPa 55 to 200
460

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 620
460
Specific Heat Capacity, J/kg-K 900
860
Thermal Conductivity, W/m-K 200
140
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49 to 54
35
Electrical Conductivity: Equal Weight (Specific), % IACS 160 to 180
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 1190
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 21
31
Resilience: Unit (Modulus of Resilience), kJ/m3 22 to 280
1510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 13 to 26
49
Strength to Weight: Bending, points 21 to 33
48
Thermal Diffusivity, mm2/s 83
54
Thermal Shock Resistance, points 5.6 to 11
23

Alloy Composition

Aluminum (Al), % 97.5 to 99
86.9 to 91.2
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.1
0.3 to 1.0
Iron (Fe), % 0.15 to 0.35
0 to 0.6
Magnesium (Mg), % 0.6 to 0.9
1.2 to 2.0
Manganese (Mn), % 0 to 0.15
0.3 to 0.8
Silicon (Si), % 0.3 to 0.6
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.15
7.0 to 8.0
Residuals, % 0
0 to 0.15