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C82200 Copper vs. 7475 Aluminum

C82200 copper belongs to the copper alloys classification, while 7475 aluminum belongs to the aluminum alloys. There are 28 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 C82200 copper and the bottom bar is 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 220
380
Maximum Temperature: Mechanical, °C 230
180
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
140 to 160
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
33 to 42
Electrical Conductivity: Equal Weight (Specific), % IACS 46
98 to 120

Otherwise Unclassified Properties

Base Metal Price, % relative 55
10
Density, g/cm3 8.9
3.0
Embodied Carbon, kg CO2/kg material 4.8
8.2
Embodied Energy, MJ/kg 74
150
Embodied Water, L/kg 310
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 66
53 to 68
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1130
1390 to 1920
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
46
Strength to Weight: Axial, points 12 to 20
49 to 55
Strength to Weight: Bending, points 13 to 19
48 to 52
Thermal Diffusivity, mm2/s 53
53 to 63
Thermal Shock Resistance, points 14 to 23
23 to 26

Alloy Composition

Aluminum (Al), % 0
88.6 to 91.6
Beryllium (Be), % 0.35 to 0.8
0
Chromium (Cr), % 0
0.18 to 0.25
Cobalt (Co), % 0 to 0.3
0
Copper (Cu), % 97.4 to 98.7
1.2 to 1.9
Iron (Fe), % 0
0 to 0.12
Magnesium (Mg), % 0
1.9 to 2.6
Manganese (Mn), % 0
0 to 0.060
Nickel (Ni), % 1.0 to 2.0
0
Silicon (Si), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.060
Zinc (Zn), % 0
5.1 to 6.2
Residuals, % 0
0 to 0.15