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C14500 Copper vs. 7178 Aluminum

C14500 copper belongs to the copper alloys classification, while 7178 aluminum belongs to the aluminum 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 C14500 copper and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
71
Elongation at Break, % 12 to 50
4.5 to 12
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
27
Shear Strength, MPa 150 to 190
140 to 380
Tensile Strength: Ultimate (UTS), MPa 220 to 330
240 to 640
Tensile Strength: Yield (Proof), MPa 69 to 260
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 210
370
Maximum Temperature: Mechanical, °C 200
180
Melting Completion (Liquidus), °C 1080
630
Melting Onset (Solidus), °C 1050
480
Specific Heat Capacity, J/kg-K 390
860
Thermal Conductivity, W/m-K 360
130
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 94
31
Electrical Conductivity: Equal Weight (Specific), % IACS 95
91

Otherwise Unclassified Properties

Base Metal Price, % relative 33
10
Density, g/cm3 8.9
3.1
Embodied Carbon, kg CO2/kg material 2.6
8.2
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 310
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 85
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 300
110 to 2220
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
45
Strength to Weight: Axial, points 6.8 to 10
21 to 58
Strength to Weight: Bending, points 9.1 to 12
28 to 54
Thermal Diffusivity, mm2/s 100
47
Thermal Shock Resistance, points 8.0 to 12
10 to 28

Alloy Composition

Aluminum (Al), % 0
85.4 to 89.5
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 99.2 to 99.596
1.6 to 2.4
Iron (Fe), % 0
0 to 0.5
Magnesium (Mg), % 0
2.4 to 3.1
Manganese (Mn), % 0
0 to 0.3
Phosphorus (P), % 0.0040 to 0.012
0
Silicon (Si), % 0
0 to 0.4
Tellurium (Te), % 0.4 to 0.7
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
6.3 to 7.3
Residuals, % 0
0 to 0.15