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7075 Aluminum vs. CC382H Copper-nickel

7075 aluminum belongs to the aluminum alloys classification, while CC382H 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 CC382H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
140
Elongation at Break, % 1.8 to 12
20
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
53
Tensile Strength: Ultimate (UTS), MPa 240 to 590
490
Tensile Strength: Yield (Proof), MPa 120 to 510
290

Thermal Properties

Latent Heat of Fusion, J/g 380
240
Maximum Temperature: Mechanical, °C 200
260
Melting Completion (Liquidus), °C 640
1180
Melting Onset (Solidus), °C 480
1120
Specific Heat Capacity, J/kg-K 870
410
Thermal Conductivity, W/m-K 130
30
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 98
5.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
41
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.3
5.2
Embodied Energy, MJ/kg 150
76
Embodied Water, L/kg 1120
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
85
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
290
Stiffness to Weight: Axial, points 13
8.8
Stiffness to Weight: Bending, points 46
20
Strength to Weight: Axial, points 22 to 54
15
Strength to Weight: Bending, points 28 to 52
16
Thermal Diffusivity, mm2/s 50
8.2
Thermal Shock Resistance, points 10 to 25
16

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
0 to 0.010
Bismuth (Bi), % 0
0 to 0.0020
Boron (B), % 0
0 to 0.010
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.18 to 0.28
1.5 to 2.0
Copper (Cu), % 1.2 to 2.0
62.8 to 68.4
Iron (Fe), % 0 to 0.5
0.5 to 1.0
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 2.1 to 2.9
0 to 0.010
Manganese (Mn), % 0 to 0.3
0.5 to 1.0
Nickel (Ni), % 0
29 to 32
Phosphorus (P), % 0
0 to 0.010
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.4
0.15 to 0.5
Sulfur (S), % 0
0 to 0.010
Tellurium (Te), % 0
0 to 0.0050
Titanium (Ti), % 0 to 0.2
0 to 0.25
Zinc (Zn), % 5.1 to 6.1
0 to 0.2
Zirconium (Zr), % 0 to 0.25
0 to 0.15
Residuals, % 0 to 0.15
0