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C82400 Copper vs. 7076 Aluminum

C82400 copper belongs to the copper alloys classification, while 7076 aluminum belongs to the aluminum alloys. There are 27 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 C82400 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, % 1.0 to 20
6.2
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 45
27
Tensile Strength: Ultimate (UTS), MPa 500 to 1030
530
Tensile Strength: Yield (Proof), MPa 260 to 970
460

Thermal Properties

Latent Heat of Fusion, J/g 230
380
Maximum Temperature: Mechanical, °C 270
170
Melting Completion (Liquidus), °C 1000
630
Melting Onset (Solidus), °C 900
460
Specific Heat Capacity, J/kg-K 380
860
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
35
Electrical Conductivity: Equal Weight (Specific), % IACS 26
100

Otherwise Unclassified Properties

Density, g/cm3 8.8
3.0
Embodied Carbon, kg CO2/kg material 8.9
8.0
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 310
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 83
31
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 3870
1510
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 16 to 33
49
Strength to Weight: Bending, points 16 to 26
48
Thermal Diffusivity, mm2/s 39
54
Thermal Shock Resistance, points 17 to 36
23

Alloy Composition

Aluminum (Al), % 0 to 0.15
86.9 to 91.2
Beryllium (Be), % 1.6 to 1.9
0
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 0.2 to 0.65
0
Copper (Cu), % 96 to 98.2
0.3 to 1.0
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0
1.2 to 2.0
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.4
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0 to 0.2
Zinc (Zn), % 0 to 0.1
7.0 to 8.0
Residuals, % 0
0 to 0.15