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7021 Aluminum vs. 332.0 Aluminum

Both 7021 aluminum and 332.0 aluminum are aluminum alloys. They have 87% 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 332.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
73
Elongation at Break, % 9.4
1.0
Fatigue Strength, MPa 150
90
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 270
190
Tensile Strength: Ultimate (UTS), MPa 460
250
Tensile Strength: Yield (Proof), MPa 390
190

Thermal Properties

Latent Heat of Fusion, J/g 380
530
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 630
580
Melting Onset (Solidus), °C 510
530
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
26
Electrical Conductivity: Equal Weight (Specific), % IACS 120
84

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.9
2.8
Embodied Carbon, kg CO2/kg material 8.3
7.8
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 1110
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 44
24
Strength to Weight: Bending, points 45
31
Thermal Diffusivity, mm2/s 59
42
Thermal Shock Resistance, points 20
12

Alloy Composition


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Aluminum (Al), % 90.7 to 93.7
80.1 to 89
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 0 to 0.25
2.0 to 4.0
Iron (Fe), % 0 to 0.4
0 to 1.2
Magnesium (Mg), % 1.2 to 1.8
0.5 to 1.5
Manganese (Mn), % 0 to 0.1
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Silicon (Si), % 0 to 0.25
8.5 to 10.5
Titanium (Ti), % 0 to 0.1
0 to 0.25
Zinc (Zn), % 5.0 to 6.0
0 to 1.0
Zirconium (Zr), % 0.080 to 0.18
0
Residuals, % 0 to 0.15
0 to 0.5