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C99300 Copper vs. 6018 Aluminum

C99300 copper belongs to the copper alloys classification, while 6018 aluminum belongs to the aluminum 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 C99300 copper and the bottom bar is 6018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 2.0
9.0 to 9.1
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 46
26
Tensile Strength: Ultimate (UTS), MPa 660
290 to 300
Tensile Strength: Yield (Proof), MPa 380
220 to 230

Thermal Properties

Latent Heat of Fusion, J/g 240
400
Maximum Temperature: Mechanical, °C 250
160
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 1070
570
Specific Heat Capacity, J/kg-K 450
890
Thermal Conductivity, W/m-K 43
170
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
44
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
140

Otherwise Unclassified Properties

Base Metal Price, % relative 35
10
Density, g/cm3 8.2
2.9
Embodied Carbon, kg CO2/kg material 4.5
8.2
Embodied Energy, MJ/kg 70
150
Embodied Water, L/kg 400
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
24 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 590
360 to 380
Stiffness to Weight: Axial, points 8.3
13
Stiffness to Weight: Bending, points 20
48
Strength to Weight: Axial, points 22
28 to 29
Strength to Weight: Bending, points 20
34 to 35
Thermal Diffusivity, mm2/s 12
65
Thermal Shock Resistance, points 22
13

Alloy Composition

Aluminum (Al), % 10.7 to 11.5
93.1 to 97.8
Bismuth (Bi), % 0
0.4 to 0.7
Chromium (Cr), % 0
0 to 0.1
Cobalt (Co), % 1.0 to 2.0
0
Copper (Cu), % 68.6 to 74.4
0.15 to 0.4
Iron (Fe), % 0.4 to 1.0
0 to 0.7
Lead (Pb), % 0 to 0.020
0.4 to 1.2
Magnesium (Mg), % 0
0.6 to 1.2
Manganese (Mn), % 0
0.3 to 0.8
Nickel (Ni), % 13.5 to 16.5
0
Silicon (Si), % 0 to 0.020
0.5 to 1.2
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15