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C19025 Copper vs. 7075 Aluminum

C19025 copper belongs to the copper alloys classification, while 7075 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 C19025 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 17
1.8 to 12
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
26
Shear Strength, MPa 300 to 360
150 to 340
Tensile Strength: Ultimate (UTS), MPa 480 to 620
240 to 590

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 1020
480
Specific Heat Capacity, J/kg-K 380
870
Thermal Conductivity, W/m-K 160
130
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
33
Electrical Conductivity: Equal Weight (Specific), % IACS 40
98

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 8.9
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.3
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 320
1120

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
46
Strength to Weight: Axial, points 15 to 19
22 to 54
Strength to Weight: Bending, points 15 to 18
28 to 52
Thermal Diffusivity, mm2/s 47
50
Thermal Shock Resistance, points 17 to 22
10 to 25

Alloy Composition

Aluminum (Al), % 0
86.9 to 91.4
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 97.1 to 98.5
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), % 0.8 to 1.2
0
Phosphorus (P), % 0.030 to 0.070
0
Silicon (Si), % 0
0 to 0.4
Tin (Sn), % 0.7 to 1.1
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.2
5.1 to 6.1
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15