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C96900 Copper-nickel vs. 4045 Aluminum

C96900 copper-nickel belongs to the copper alloys classification, while 4045 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
71
Elongation at Break, % 4.5
2.3
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 45
27
Tensile Strength: Ultimate (UTS), MPa 850
120
Tensile Strength: Yield (Proof), MPa 830
64

Thermal Properties

Latent Heat of Fusion, J/g 210
540
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 1060
600
Melting Onset (Solidus), °C 960
580
Specific Heat Capacity, J/kg-K 380
900
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
45
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
160

Otherwise Unclassified Properties

Base Metal Price, % relative 39
9.5
Density, g/cm3 8.8
2.6
Embodied Carbon, kg CO2/kg material 4.6
7.8
Embodied Energy, MJ/kg 72
150
Embodied Water, L/kg 360
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 2820
29
Stiffness to Weight: Axial, points 7.7
15
Stiffness to Weight: Bending, points 19
54
Strength to Weight: Axial, points 27
13
Strength to Weight: Bending, points 23
21
Thermal Shock Resistance, points 30
5.7

Alloy Composition

Aluminum (Al), % 0
87.4 to 91
Copper (Cu), % 73.6 to 78
0 to 0.3
Iron (Fe), % 0 to 0.5
0 to 0.8
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0 to 0.050
Manganese (Mn), % 0.050 to 0.3
0 to 0.050
Nickel (Ni), % 14.5 to 15.5
0
Niobium (Nb), % 0 to 0.1
0
Silicon (Si), % 0 to 0.3
9.0 to 11
Tin (Sn), % 7.5 to 8.5
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.5
0 to 0.1
Residuals, % 0
0 to 0.15