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7022 Aluminum vs. C82400 Copper

7022 aluminum belongs to the aluminum alloys classification, while C82400 copper belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7022 aluminum and the bottom bar is C82400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.3 to 8.0
1.0 to 20
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
45
Tensile Strength: Ultimate (UTS), MPa 490 to 540
500 to 1030
Tensile Strength: Yield (Proof), MPa 390 to 460
260 to 970

Thermal Properties

Latent Heat of Fusion, J/g 380
230
Maximum Temperature: Mechanical, °C 200
270
Melting Completion (Liquidus), °C 640
1000
Melting Onset (Solidus), °C 480
900
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 140
130
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
25
Electrical Conductivity: Equal Weight (Specific), % IACS 65
26

Otherwise Unclassified Properties

Density, g/cm3 2.9
8.8
Embodied Carbon, kg CO2/kg material 8.5
8.9
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
10 to 83
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
270 to 3870
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 47 to 51
16 to 33
Strength to Weight: Bending, points 47 to 50
16 to 26
Thermal Diffusivity, mm2/s 54
39
Thermal Shock Resistance, points 21 to 23
17 to 36

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
0 to 0.15
Beryllium (Be), % 0
1.6 to 1.9
Chromium (Cr), % 0.1 to 0.3
0 to 0.1
Cobalt (Co), % 0
0.2 to 0.65
Copper (Cu), % 0.5 to 1.0
96 to 98.2
Iron (Fe), % 0 to 0.5
0 to 0.2
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 2.6 to 3.7
0
Manganese (Mn), % 0.1 to 0.4
0
Nickel (Ni), % 0
0 to 0.2
Silicon (Si), % 0 to 0.5
0
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0 to 0.2
0 to 0.12
Zinc (Zn), % 4.3 to 5.2
0 to 0.1
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.5