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C72700 Copper-nickel vs. 6070 Aluminum

C72700 copper-nickel belongs to the copper alloys classification, while 6070 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C72700 copper-nickel and the bottom bar is 6070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 4.0 to 36
5.6 to 8.6
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 44
26
Shear Strength, MPa 310 to 620
220 to 240
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
370 to 380
Tensile Strength: Yield (Proof), MPa 580 to 1060
350

Thermal Properties

Latent Heat of Fusion, J/g 210
410
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1100
650
Melting Onset (Solidus), °C 930
570
Specific Heat Capacity, J/kg-K 380
900
Thermal Conductivity, W/m-K 54
160
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
41
Electrical Conductivity: Equal Weight (Specific), % IACS 11
140

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 8.8
2.7
Embodied Carbon, kg CO2/kg material 4.0
8.3
Embodied Energy, MJ/kg 62
150
Embodied Water, L/kg 350
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
20 to 32
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
880 to 900
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 14 to 34
38
Strength to Weight: Bending, points 15 to 26
42 to 43
Thermal Diffusivity, mm2/s 16
65
Thermal Shock Resistance, points 16 to 38
16 to 17

Alloy Composition


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Aluminum (Al), % 0
94.6 to 98
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 82.1 to 86
0.15 to 0.4
Iron (Fe), % 0 to 0.5
0 to 0.5
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0.5 to 1.2
Manganese (Mn), % 0.050 to 0.3
0.4 to 1.0
Nickel (Ni), % 8.5 to 9.5
0
Niobium (Nb), % 0 to 0.1
0
Silicon (Si), % 0
1.0 to 1.7
Tin (Sn), % 5.5 to 6.5
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0 to 0.5
0 to 0.25
Residuals, % 0 to 0.3
0 to 0.15