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C12000 Copper vs. 7075 Aluminum

C12000 copper belongs to the copper alloys classification, while 7075 aluminum belongs to the aluminum alloys. There are 29 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 C12000 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, % 2.8 to 50
1.8 to 12
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
26
Shear Strength, MPa 160 to 240
150 to 340
Tensile Strength: Ultimate (UTS), MPa 230 to 410
240 to 590
Tensile Strength: Yield (Proof), MPa 77 to 400
120 to 510

Thermal Properties

Latent Heat of Fusion, J/g 210
380
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 1080
480
Specific Heat Capacity, J/kg-K 390
870
Thermal Conductivity, W/m-K 390
130
Thermal Expansion, µm/m-K 17
23

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 9.0
3.0
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 310
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 91
7.8 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 690
110 to 1870
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
46
Strength to Weight: Axial, points 7.2 to 13
22 to 54
Strength to Weight: Bending, points 9.4 to 14
28 to 52
Thermal Diffusivity, mm2/s 110
50
Thermal Shock Resistance, points 8.2 to 15
10 to 25

Alloy Composition

Aluminum (Al), % 0
86.9 to 91.4
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 99.9 to 99.996
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
Phosphorus (P), % 0.0040 to 0.012
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