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7108A Aluminum vs. C71580 Copper-nickel

7108A aluminum belongs to the aluminum alloys classification, while C71580 copper-nickel belongs to the copper alloys. There are 29 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 C71580 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
140
Elongation at Break, % 11 to 13
40
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
51
Shear Strength, MPa 210
230
Tensile Strength: Ultimate (UTS), MPa 350
330
Tensile Strength: Yield (Proof), MPa 290 to 300
110

Thermal Properties

Latent Heat of Fusion, J/g 380
230
Maximum Temperature: Mechanical, °C 210
260
Melting Completion (Liquidus), °C 630
1180
Melting Onset (Solidus), °C 520
1120
Specific Heat Capacity, J/kg-K 870
400
Thermal Conductivity, W/m-K 150
39
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
41
Density, g/cm3 2.9
8.9
Embodied Carbon, kg CO2/kg material 8.3
5.1
Embodied Energy, MJ/kg 150
74
Embodied Water, L/kg 1150
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
100
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
47
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 33 to 34
10
Strength to Weight: Bending, points 38
12
Thermal Diffusivity, mm2/s 59
11
Thermal Shock Resistance, points 15 to 16
11

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
65.5 to 71
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.5
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0 to 0.3
Nickel (Ni), % 0
29 to 33
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0 to 0.050
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0
0 to 0.5