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2014 Aluminum vs. C81400 Copper

2014 aluminum belongs to the aluminum alloys classification, while C81400 copper belongs to the copper 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 2014 aluminum and the bottom bar is C81400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
120
Elongation at Break, % 1.5 to 16
11
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 190 to 500
370
Tensile Strength: Yield (Proof), MPa 100 to 440
250

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 630
1090
Melting Onset (Solidus), °C 510
1070
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 150
260
Thermal Expansion, µm/m-K 23
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
33
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1130
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.6 to 56
36
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 1330
260
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 18 to 46
11
Strength to Weight: Bending, points 25 to 46
13
Thermal Diffusivity, mm2/s 58
75
Thermal Shock Resistance, points 8.4 to 22
13

Alloy Composition

Aluminum (Al), % 90.4 to 95
0
Beryllium (Be), % 0
0.020 to 0.1
Chromium (Cr), % 0 to 0.1
0.6 to 1.0
Copper (Cu), % 3.9 to 5.0
98.4 to 99.38
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.4 to 1.2
0
Silicon (Si), % 0.5 to 1.2
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.5