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7021 Aluminum vs. 392.0 Aluminum

Both 7021 aluminum and 392.0 aluminum are aluminum alloys. They have 79% of their average alloy composition in common. There are 29 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 392.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
75
Elongation at Break, % 9.4
0.86
Fatigue Strength, MPa 150
190
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
28
Tensile Strength: Ultimate (UTS), MPa 460
290
Tensile Strength: Yield (Proof), MPa 390
270

Thermal Properties

Latent Heat of Fusion, J/g 380
670
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 630
670
Melting Onset (Solidus), °C 510
580
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
25
Electrical Conductivity: Equal Weight (Specific), % IACS 120
90

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.9
2.5
Embodied Carbon, kg CO2/kg material 8.3
7.5
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
490
Stiffness to Weight: Axial, points 13
17
Stiffness to Weight: Bending, points 47
56
Strength to Weight: Axial, points 44
32
Strength to Weight: Bending, points 45
39
Thermal Diffusivity, mm2/s 59
60
Thermal Shock Resistance, points 20
15

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
73.9 to 80.6
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.25
0.4 to 0.8
Iron (Fe), % 0 to 0.4
0 to 1.5
Magnesium (Mg), % 1.2 to 1.8
0.8 to 1.2
Manganese (Mn), % 0 to 0.1
0.2 to 0.6
Nickel (Ni), % 0
0 to 0.5
Silicon (Si), % 0 to 0.25
18 to 20
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.1
0 to 0.2
Zinc (Zn), % 5.0 to 6.0
0 to 0.5
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.5