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CR008A Copper vs. 4047 Aluminum

CR008A 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 (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 CR008A 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, % 15
3.4
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
27
Tensile Strength: Ultimate (UTS), MPa 220
120
Tensile Strength: Yield (Proof), MPa 130
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 1040
580
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 380
130
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
33
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 9.0
2.5
Embodied Carbon, kg CO2/kg material 2.6
7.7
Embodied Energy, MJ/kg 41
140
Embodied Water, L/kg 320
1050

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
3.5
Resilience: Unit (Modulus of Resilience), kJ/m3 76
28
Stiffness to Weight: Axial, points 7.2
16
Stiffness to Weight: Bending, points 18
55
Strength to Weight: Axial, points 6.8
13
Strength to Weight: Bending, points 9.0
21
Thermal Diffusivity, mm2/s 110
59
Thermal Shock Resistance, points 7.8
5.6

Alloy Composition


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Aluminum (Al), % 0
85.3 to 89
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.95 to 100
0 to 0.3
Iron (Fe), % 0
0 to 0.8
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.15
Silicon (Si), % 0
11 to 13
Silver (Ag), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15