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7020 Aluminum vs. 332.0 Aluminum

Both 7020 aluminum and 332.0 aluminum are aluminum alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is 7020 aluminum and the bottom bar is 332.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 100
110
Elastic (Young's, Tensile) Modulus, GPa 70
73
Elongation at Break, % 8.4 to 14
1.0
Fatigue Strength, MPa 110 to 130
90
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 110 to 230
190
Tensile Strength: Ultimate (UTS), MPa 190 to 390
250
Tensile Strength: Yield (Proof), MPa 120 to 310
190

Thermal Properties

Latent Heat of Fusion, J/g 380
530
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 650
580
Melting Onset (Solidus), °C 610
530
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
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 1150
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 46
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 690
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 18 to 37
24
Strength to Weight: Bending, points 25 to 41
31
Thermal Diffusivity, mm2/s 59
42
Thermal Shock Resistance, points 8.3 to 17
12

Alloy Composition


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Aluminum (Al), % 91.2 to 94.8
80.1 to 89
Chromium (Cr), % 0.1 to 0.35
0
Copper (Cu), % 0 to 0.2
2.0 to 4.0
Iron (Fe), % 0 to 0.4
0 to 1.2
Magnesium (Mg), % 1.0 to 1.4
0.5 to 1.5
Manganese (Mn), % 0.050 to 0.5
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Silicon (Si), % 0 to 0.35
8.5 to 10.5
Titanium (Ti), % 0 to 0.25
0 to 0.25
Zinc (Zn), % 4.0 to 5.0
0 to 1.0
Zirconium (Zr), % 0.080 to 0.25
0
Residuals, % 0 to 0.15
0 to 0.5