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2024 Aluminum vs. C72700 Copper-nickel

2024 aluminum belongs to the aluminum alloys classification, while C72700 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 2024 aluminum and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Elongation at Break, % 4.0 to 16
4.0 to 36
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
44
Shear Strength, MPa 130 to 320
310 to 620
Tensile Strength: Ultimate (UTS), MPa 200 to 540
460 to 1070
Tensile Strength: Yield (Proof), MPa 100 to 490
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 390
210
Maximum Temperature: Mechanical, °C 200
200
Melting Completion (Liquidus), °C 640
1100
Melting Onset (Solidus), °C 500
930
Specific Heat Capacity, J/kg-K 880
380
Thermal Conductivity, W/m-K 120
54
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
11
Electrical Conductivity: Equal Weight (Specific), % IACS 90
11

Otherwise Unclassified Properties

Base Metal Price, % relative 11
36
Density, g/cm3 3.0
8.8
Embodied Carbon, kg CO2/kg material 8.3
4.0
Embodied Energy, MJ/kg 150
62
Embodied Water, L/kg 1140
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
1420 to 4770
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 18 to 50
14 to 34
Strength to Weight: Bending, points 25 to 49
15 to 26
Thermal Diffusivity, mm2/s 46
16
Thermal Shock Resistance, points 8.6 to 24
16 to 38

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.8 to 4.9
82.1 to 86
Iron (Fe), % 0 to 0.5
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 1.2 to 1.8
0 to 0.15
Manganese (Mn), % 0.3 to 0.9
0.050 to 0.3
Nickel (Ni), % 0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Silicon (Si), % 0 to 0.5
0
Tin (Sn), % 0
5.5 to 6.5
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 0.3