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8090 Aluminum vs. C70620 Copper-nickel

8090 aluminum belongs to the aluminum alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 8090 aluminum and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
120
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 25
46
Tensile Strength: Ultimate (UTS), MPa 340 to 490
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 400
220
Maximum Temperature: Mechanical, °C 190
220
Melting Completion (Liquidus), °C 660
1120
Melting Onset (Solidus), °C 600
1060
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 95 to 160
49
Thermal Expansion, µm/m-K 24
17

Otherwise Unclassified Properties

Base Metal Price, % relative 18
33
Density, g/cm3 2.7
8.9
Embodied Carbon, kg CO2/kg material 8.6
3.4
Embodied Energy, MJ/kg 170
51
Embodied Water, L/kg 1160
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 34 to 49
9.3 to 18
Strength to Weight: Bending, points 39 to 50
11 to 17
Thermal Diffusivity, mm2/s 36 to 60
14
Thermal Shock Resistance, points 15 to 22
10 to 20

Alloy Composition

Aluminum (Al), % 93 to 98.4
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
86.5 to 90
Iron (Fe), % 0 to 0.3
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0 to 0.5
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0
0 to 0.5