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7021 Aluminum vs. 6060 Aluminum

Both 7021 aluminum and 6060 aluminum are aluminum alloys. They have a moderately high 93% 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 7021 aluminum and the bottom bar is 6060 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 9.4
9.0 to 16
Fatigue Strength, MPa 150
37 to 70
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 270
86 to 130
Tensile Strength: Ultimate (UTS), MPa 460
140 to 220
Tensile Strength: Yield (Proof), MPa 390
71 to 170

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 630
660
Melting Onset (Solidus), °C 510
610
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 150
210
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
54
Electrical Conductivity: Equal Weight (Specific), % IACS 120
180

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
13 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
37 to 210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 44
14 to 23
Strength to Weight: Bending, points 45
22 to 30
Thermal Diffusivity, mm2/s 59
85
Thermal Shock Resistance, points 20
6.3 to 9.9

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
97.9 to 99.3
Chromium (Cr), % 0 to 0.050
0 to 0.050
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.4
0.1 to 0.3
Magnesium (Mg), % 1.2 to 1.8
0.35 to 0.6
Manganese (Mn), % 0 to 0.1
0 to 0.1
Silicon (Si), % 0 to 0.25
0.3 to 0.6
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 5.0 to 6.0
0 to 0.15
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.15