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7108A Aluminum vs. CR015A Copper

7108A aluminum belongs to the aluminum alloys classification, while CR015A copper belongs to the copper 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 7108A aluminum and the bottom bar is CR015A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 11 to 13
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 350
220
Tensile Strength: Yield (Proof), MPa 290 to 300
130

Thermal Properties

Latent Heat of Fusion, J/g 380
210
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 630
1090
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 150
390
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
98
Electrical Conductivity: Equal Weight (Specific), % IACS 110
99

Otherwise Unclassified Properties

Base Metal Price, % relative 10
33
Density, g/cm3 2.9
9.0
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1150
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
29
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
76
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 47
18
Strength to Weight: Axial, points 33 to 34
6.8
Strength to Weight: Bending, points 38
9.0
Thermal Diffusivity, mm2/s 59
110
Thermal Shock Resistance, points 15 to 16
7.8

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0
Bismuth (Bi), % 0
0 to 0.00050
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
99.883 to 99.939
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0
Phosphorus (P), % 0
0.0010 to 0.0070
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
0.060 to 0.080
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0