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7021 Aluminum vs. 515.0 Aluminum

Both 7021 aluminum and 515.0 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is 7021 aluminum and the bottom bar is 515.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 9.4
10
Fatigue Strength, MPa 150
130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 270
190
Tensile Strength: Ultimate (UTS), MPa 460
280

Thermal Properties

Latent Heat of Fusion, J/g 380
470
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 630
620
Melting Onset (Solidus), °C 510
620
Specific Heat Capacity, J/kg-K 870
900
Thermal Expansion, µm/m-K 24
23

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.6
Embodied Carbon, kg CO2/kg material 8.3
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1120

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
52
Strength to Weight: Axial, points 44
30
Strength to Weight: Bending, points 45
36
Thermal Shock Resistance, points 20
13

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
93.6 to 96.6
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 0 to 0.4
0 to 1.3
Magnesium (Mg), % 1.2 to 1.8
2.5 to 4.0
Manganese (Mn), % 0 to 0.1
0.4 to 0.6
Silicon (Si), % 0 to 0.25
0.5 to 10
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 5.0 to 6.0
0 to 0.1
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.15