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CR008A Copper vs. 7204 Aluminum

CR008A copper belongs to the copper alloys classification, while 7204 aluminum belongs to the aluminum alloys. There are 28 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 CR008A copper and the bottom bar is 7204 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 15
11 to 13
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
26
Tensile Strength: Ultimate (UTS), MPa 220
220 to 380
Tensile Strength: Yield (Proof), MPa 130
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 210
380
Maximum Temperature: Mechanical, °C 200
210
Melting Completion (Liquidus), °C 1090
640
Melting Onset (Solidus), °C 1040
520
Specific Heat Capacity, J/kg-K 390
880
Thermal Conductivity, W/m-K 380
150
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
39
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 9.0
2.9
Embodied Carbon, kg CO2/kg material 2.6
8.4
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 320
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
25 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 76
110 to 710
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
47
Strength to Weight: Axial, points 6.8
21 to 36
Strength to Weight: Bending, points 9.0
28 to 40
Thermal Diffusivity, mm2/s 110
58
Thermal Shock Resistance, points 7.8
9.4 to 16

Alloy Composition


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Aluminum (Al), % 0
90.5 to 94.8
Bismuth (Bi), % 0 to 0.00050
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 99.95 to 100
0 to 0.2
Iron (Fe), % 0
0 to 0.35
Lead (Pb), % 0 to 0.0050
0
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 0
0.2 to 0.7
Silicon (Si), % 0
0 to 0.3
Silver (Ag), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0
4.0 to 5.0
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15