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8090 Aluminum vs. CR020A Copper

8090 aluminum belongs to the aluminum alloys classification, while CR020A copper belongs to the copper alloys. There are 28 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 8090 aluminum and the bottom bar is CR020A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
120
Elongation at Break, % 3.5 to 13
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 25
43
Tensile Strength: Ultimate (UTS), MPa 340 to 490
220
Tensile Strength: Yield (Proof), MPa 210 to 420
130

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
1040
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 95 to 160
380
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
100
Electrical Conductivity: Equal Weight (Specific), % IACS 66
100

Otherwise Unclassified Properties

Base Metal Price, % relative 18
31
Density, g/cm3 2.7
9.0
Embodied Carbon, kg CO2/kg material 8.6
2.6
Embodied Energy, MJ/kg 170
41
Embodied Water, L/kg 1160
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
29
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
76
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 34 to 49
6.8
Strength to Weight: Bending, points 39 to 50
9.0
Thermal Diffusivity, mm2/s 36 to 60
110
Thermal Shock Resistance, points 15 to 22
7.8

Alloy Composition

Aluminum (Al), % 93 to 98.4
0
Bismuth (Bi), % 0
0 to 0.00050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
99.95 to 99.999
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 0
0 to 0.0050
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0
Phosphorus (P), % 0
0.0010 to 0.0060
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0