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C81400 Copper vs. 2117 Aluminum

C81400 copper belongs to the copper alloys classification, while 2117 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 C81400 copper and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
71
Elongation at Break, % 11
26
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 370
300
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 210
400
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 1090
650
Melting Onset (Solidus), °C 1070
550
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 260
150
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
40
Electrical Conductivity: Equal Weight (Specific), % IACS 61
120

Otherwise Unclassified Properties

Base Metal Price, % relative 33
10
Density, g/cm3 8.9
3.0
Embodied Carbon, kg CO2/kg material 2.8
8.2
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 310
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
64
Resilience: Unit (Modulus of Resilience), kJ/m3 260
190
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
47
Strength to Weight: Axial, points 11
28
Strength to Weight: Bending, points 13
33
Thermal Diffusivity, mm2/s 75
59
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 0
91 to 97.6
Beryllium (Be), % 0.020 to 0.1
0
Chromium (Cr), % 0.6 to 1.0
0 to 0.1
Copper (Cu), % 98.4 to 99.38
2.2 to 4.5
Iron (Fe), % 0
0 to 0.7
Magnesium (Mg), % 0
0.2 to 1.0
Manganese (Mn), % 0
0.4 to 1.0
Silicon (Si), % 0
0.2 to 0.8
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15