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C81400 Copper vs. 4047 Aluminum

C81400 copper belongs to the copper alloys classification, while 4047 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 4047 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
72
Elongation at Break, % 11
3.4
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 41
27
Tensile Strength: Ultimate (UTS), MPa 370
120
Tensile Strength: Yield (Proof), MPa 250
64

Thermal Properties

Latent Heat of Fusion, J/g 210
570
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1090
580
Melting Onset (Solidus), °C 1070
580
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 260
130
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
33
Electrical Conductivity: Equal Weight (Specific), % IACS 61
120

Otherwise Unclassified Properties

Base Metal Price, % relative 33
9.5
Density, g/cm3 8.9
2.5
Embodied Carbon, kg CO2/kg material 2.8
7.7
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 310
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
3.5
Resilience: Unit (Modulus of Resilience), kJ/m3 260
28
Stiffness to Weight: Axial, points 7.3
16
Stiffness to Weight: Bending, points 18
55
Strength to Weight: Axial, points 11
13
Strength to Weight: Bending, points 13
21
Thermal Diffusivity, mm2/s 75
59
Thermal Shock Resistance, points 13
5.6

Alloy Composition

Aluminum (Al), % 0
85.3 to 89
Beryllium (Be), % 0.020 to 0.1
0
Chromium (Cr), % 0.6 to 1.0
0
Copper (Cu), % 98.4 to 99.38
0 to 0.3
Iron (Fe), % 0
0 to 0.8
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.15
Silicon (Si), % 0
11 to 13
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15