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CR011A Copper vs. 7076 Aluminum

CR011A copper belongs to the copper alloys classification, while 7076 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 CR011A copper and the bottom bar is 7076 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 15
6.2
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 43
27
Tensile Strength: Ultimate (UTS), MPa 220
530
Tensile Strength: Yield (Proof), MPa 130
460

Thermal Properties

Latent Heat of Fusion, J/g 210
380
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1090
630
Melting Onset (Solidus), °C 1040
460
Specific Heat Capacity, J/kg-K 390
860
Thermal Conductivity, W/m-K 390
140
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
35
Electrical Conductivity: Equal Weight (Specific), % IACS 100
100

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.5
Density, g/cm3 9.0
3.0
Embodied Carbon, kg CO2/kg material 2.6
8.0
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 340
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
31
Resilience: Unit (Modulus of Resilience), kJ/m3 76
1510
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
45
Strength to Weight: Axial, points 6.8
49
Strength to Weight: Bending, points 9.0
48
Thermal Diffusivity, mm2/s 110
54
Thermal Shock Resistance, points 7.8
23

Alloy Composition


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Aluminum (Al), % 0
86.9 to 91.2
Bismuth (Bi), % 0 to 0.00050
0
Copper (Cu), % 99.88 to 99.97
0.3 to 1.0
Iron (Fe), % 0
0 to 0.6
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 0
0.3 to 0.8
Oxygen (O), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.4
Silver (Ag), % 0.030 to 0.050
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
7.0 to 8.0
Residuals, % 0
0 to 0.15