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7022 Aluminum vs. C12900 Copper

7022 aluminum belongs to the aluminum alloys classification, while C12900 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 C12900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 6.3 to 8.0
2.8 to 50
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 26
43
Shear Strength, MPa 290 to 320
150 to 210
Tensile Strength: Ultimate (UTS), MPa 490 to 540
220 to 420
Tensile Strength: Yield (Proof), MPa 390 to 460
75 to 380

Thermal Properties

Latent Heat of Fusion, J/g 380
210
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 480
1030
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 140
380
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
98
Electrical Conductivity: Equal Weight (Specific), % IACS 65
98

Otherwise Unclassified Properties

Base Metal Price, % relative 10
32
Density, g/cm3 2.9
9.0
Embodied Carbon, kg CO2/kg material 8.5
2.6
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1130
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 40
11 to 88
Resilience: Unit (Modulus of Resilience), kJ/m3 1100 to 1500
24 to 640
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 47
18
Strength to Weight: Axial, points 47 to 51
6.8 to 13
Strength to Weight: Bending, points 47 to 50
9.1 to 14
Thermal Diffusivity, mm2/s 54
110
Thermal Shock Resistance, points 21 to 23
7.8 to 15

Alloy Composition

Aluminum (Al), % 87.9 to 92.4
0
Antimony (Sb), % 0
0 to 0.0030
Arsenic (As), % 0
0 to 0.012
Bismuth (Bi), % 0
0 to 0.0030
Chromium (Cr), % 0.1 to 0.3
0
Copper (Cu), % 0.5 to 1.0
99.88 to 100
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0
0 to 0.0040
Magnesium (Mg), % 2.6 to 3.7
0
Manganese (Mn), % 0.1 to 0.4
0
Nickel (Ni), % 0
0 to 0.050
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
0 to 0.054
Tellurium (Te), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 4.3 to 5.2
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0