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7075 Aluminum vs. CC380H Copper-nickel

7075 aluminum belongs to the aluminum alloys classification, while CC380H copper-nickel belongs to the copper alloys. There are 28 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 7075 aluminum and the bottom bar is CC380H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 1.8 to 12
26
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 26
47
Tensile Strength: Ultimate (UTS), MPa 240 to 590
310
Tensile Strength: Yield (Proof), MPa 120 to 510
120

Thermal Properties

Latent Heat of Fusion, J/g 380
220
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 640
1130
Melting Onset (Solidus), °C 480
1080
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 130
46
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
11
Electrical Conductivity: Equal Weight (Specific), % IACS 98
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.3
3.8
Embodied Energy, MJ/kg 150
58
Embodied Water, L/kg 1120
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
65
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
59
Stiffness to Weight: Axial, points 13
7.8
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 22 to 54
9.8
Strength to Weight: Bending, points 28 to 52
12
Thermal Diffusivity, mm2/s 50
13
Thermal Shock Resistance, points 10 to 25
11

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
0 to 0.010
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
84.5 to 89
Iron (Fe), % 0 to 0.5
1.0 to 1.8
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.3
1.0 to 1.5
Nickel (Ni), % 0
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Silicon (Si), % 0 to 0.4
0 to 0.1
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.1 to 6.1
0 to 0.5
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0