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8090 Aluminum vs. C18600 Copper

8090 aluminum belongs to the aluminum alloys classification, while C18600 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 C18600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
120
Elongation at Break, % 3.5 to 13
8.0 to 11
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 25
44
Tensile Strength: Ultimate (UTS), MPa 340 to 490
520 to 580
Tensile Strength: Yield (Proof), MPa 210 to 420
500 to 520

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 660
1090
Melting Onset (Solidus), °C 600
1070
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 95 to 160
280
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
70
Electrical Conductivity: Equal Weight (Specific), % IACS 66
71

Otherwise Unclassified Properties

Base Metal Price, % relative 18
31
Density, g/cm3 2.7
8.9
Embodied Carbon, kg CO2/kg material 8.6
2.9
Embodied Energy, MJ/kg 170
46
Embodied Water, L/kg 1160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
44 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
1060 to 1180
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 34 to 49
16 to 18
Strength to Weight: Bending, points 39 to 50
16 to 17
Thermal Diffusivity, mm2/s 36 to 60
81
Thermal Shock Resistance, points 15 to 22
19 to 20

Alloy Composition


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Aluminum (Al), % 93 to 98.4
0
Chromium (Cr), % 0 to 0.1
0.1 to 1.0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 1.0 to 1.6
96.5 to 99.55
Iron (Fe), % 0 to 0.3
0.25 to 0.8
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.1
0.050 to 0.5
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0.050 to 0.4
Residuals, % 0 to 0.15
0 to 0.5