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C96900 Copper-nickel vs. 2618A Aluminum

C96900 copper-nickel belongs to the copper alloys classification, while 2618A aluminum belongs to the aluminum alloys. There are 26 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 C96900 copper-nickel and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
72
Elongation at Break, % 4.5
4.5
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 45
27
Tensile Strength: Ultimate (UTS), MPa 850
440
Tensile Strength: Yield (Proof), MPa 830
410

Thermal Properties

Latent Heat of Fusion, J/g 210
390
Maximum Temperature: Mechanical, °C 210
230
Melting Completion (Liquidus), °C 1060
670
Melting Onset (Solidus), °C 960
560
Specific Heat Capacity, J/kg-K 380
880
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
37
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 39
11
Density, g/cm3 8.8
3.0
Embodied Carbon, kg CO2/kg material 4.6
8.4
Embodied Energy, MJ/kg 72
150
Embodied Water, L/kg 360
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
19
Resilience: Unit (Modulus of Resilience), kJ/m3 2820
1180
Stiffness to Weight: Axial, points 7.7
13
Stiffness to Weight: Bending, points 19
47
Strength to Weight: Axial, points 27
41
Strength to Weight: Bending, points 23
44
Thermal Shock Resistance, points 30
19

Alloy Composition

Aluminum (Al), % 0
91.5 to 95.2
Copper (Cu), % 73.6 to 78
1.8 to 2.7
Iron (Fe), % 0 to 0.5
0.9 to 1.4
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
1.2 to 1.8
Manganese (Mn), % 0.050 to 0.3
0 to 0.25
Nickel (Ni), % 14.5 to 15.5
0.8 to 1.4
Niobium (Nb), % 0 to 0.1
0
Silicon (Si), % 0 to 0.3
0.15 to 0.25
Tin (Sn), % 7.5 to 8.5
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.5
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15