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2024 Aluminum vs. C70620 Copper-nickel

2024 aluminum belongs to the aluminum alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, 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 2024 aluminum and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
46
Tensile Strength: Ultimate (UTS), MPa 200 to 540
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 390
220
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 640
1120
Melting Onset (Solidus), °C 500
1060
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 120
49
Thermal Expansion, µm/m-K 23
17

Otherwise Unclassified Properties

Base Metal Price, % relative 11
33
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.3
3.4
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1140
300

Common Calculations

Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 18 to 50
9.3 to 18
Strength to Weight: Bending, points 25 to 49
11 to 17
Thermal Diffusivity, mm2/s 46
14
Thermal Shock Resistance, points 8.6 to 24
10 to 20

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.8 to 4.9
86.5 to 90
Iron (Fe), % 0 to 0.5
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0 to 1.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0 to 0.5
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0
0 to 0.5