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7021 Aluminum vs. 5005A Aluminum

Both 7021 aluminum and 5005A aluminum are aluminum alloys. They have a moderately high 94% 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 5005A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 9.4
1.1 to 21
Fatigue Strength, MPa 150
38 to 82
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 270
71 to 130
Tensile Strength: Ultimate (UTS), MPa 460
110 to 230
Tensile Strength: Yield (Proof), MPa 390
43 to 210

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 630
660
Melting Onset (Solidus), °C 510
630
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 150
200
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
52
Electrical Conductivity: Equal Weight (Specific), % IACS 120
170

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
2.0 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
14 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 44
12 to 24
Strength to Weight: Bending, points 45
19 to 31
Thermal Diffusivity, mm2/s 59
82
Thermal Shock Resistance, points 20
5.0 to 10

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
97.5 to 99.3
Chromium (Cr), % 0 to 0.050
0 to 0.1
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 0 to 0.4
0 to 0.45
Magnesium (Mg), % 1.2 to 1.8
0.7 to 1.1
Manganese (Mn), % 0 to 0.1
0 to 0.15
Silicon (Si), % 0 to 0.25
0 to 0.3
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 5.0 to 6.0
0 to 0.2
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.15