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C70700 Copper-nickel vs. 5070 Aluminum

C70700 copper-nickel belongs to the copper alloys classification, while 5070 aluminum belongs to the aluminum 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 C70700 copper-nickel and the bottom bar is 5070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
68
Elongation at Break, % 39
20
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 46
26
Shear Strength, MPa 220
190
Tensile Strength: Ultimate (UTS), MPa 320
300
Tensile Strength: Yield (Proof), MPa 110
140

Thermal Properties

Latent Heat of Fusion, J/g 220
390
Maximum Temperature: Mechanical, °C 220
190
Melting Completion (Liquidus), °C 1120
640
Melting Onset (Solidus), °C 1060
550
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 59
130
Thermal Expansion, µm/m-K 16
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
31
Electrical Conductivity: Equal Weight (Specific), % IACS 12
100

Otherwise Unclassified Properties

Base Metal Price, % relative 34
9.5
Density, g/cm3 8.9
2.7
Embodied Carbon, kg CO2/kg material 3.4
8.8
Embodied Energy, MJ/kg 52
150
Embodied Water, L/kg 300
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
51
Resilience: Unit (Modulus of Resilience), kJ/m3 51
150
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 10
31
Strength to Weight: Bending, points 12
37
Thermal Diffusivity, mm2/s 17
53
Thermal Shock Resistance, points 12
14

Alloy Composition

Aluminum (Al), % 0
92.4 to 95.7
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 88.5 to 90.5
0 to 0.25
Iron (Fe), % 0 to 0.050
0 to 0.4
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0 to 0.5
0.4 to 0.8
Nickel (Ni), % 9.5 to 10.5
0
Silicon (Si), % 0
0 to 0.25
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0.4 to 0.8
Residuals, % 0
0 to 0.15