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C82200 Copper vs. 7075 Aluminum

C82200 copper belongs to the copper alloys classification, while 7075 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 C82200 copper and the bottom bar is 7075 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 8.0 to 20
1.8 to 12
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 44
26
Tensile Strength: Ultimate (UTS), MPa 390 to 660
240 to 590
Tensile Strength: Yield (Proof), MPa 210 to 520
120 to 510

Thermal Properties

Latent Heat of Fusion, J/g 220
380
Maximum Temperature: Mechanical, °C 230
200
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 1040
480
Specific Heat Capacity, J/kg-K 390
870
Thermal Conductivity, W/m-K 180
130
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
33
Electrical Conductivity: Equal Weight (Specific), % IACS 46
98

Otherwise Unclassified Properties

Base Metal Price, % relative 55
10
Density, g/cm3 8.9
3.0
Embodied Carbon, kg CO2/kg material 4.8
8.3
Embodied Energy, MJ/kg 74
150
Embodied Water, L/kg 310
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 66
7.8 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1130
110 to 1870
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
46
Strength to Weight: Axial, points 12 to 20
22 to 54
Strength to Weight: Bending, points 13 to 19
28 to 52
Thermal Diffusivity, mm2/s 53
50
Thermal Shock Resistance, points 14 to 23
10 to 25

Alloy Composition

Aluminum (Al), % 0
86.9 to 91.4
Beryllium (Be), % 0.35 to 0.8
0
Chromium (Cr), % 0
0.18 to 0.28
Cobalt (Co), % 0 to 0.3
0
Copper (Cu), % 97.4 to 98.7
1.2 to 2.0
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 0
2.1 to 2.9
Manganese (Mn), % 0
0 to 0.3
Nickel (Ni), % 1.0 to 2.0
0
Silicon (Si), % 0
0 to 0.4
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
5.1 to 6.1
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15