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C99300 Copper vs. 851.0 Aluminum

C99300 copper belongs to the copper alloys classification, while 851.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, 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 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
69
Elongation at Break, % 2.0
3.9 to 9.1
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 46
26
Tensile Strength: Ultimate (UTS), MPa 660
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 240
410
Maximum Temperature: Mechanical, °C 250
180
Melting Completion (Liquidus), °C 1080
630
Melting Onset (Solidus), °C 1070
360
Specific Heat Capacity, J/kg-K 450
850
Thermal Conductivity, W/m-K 43
180
Thermal Expansion, µm/m-K 17
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
46
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
140

Otherwise Unclassified Properties

Base Metal Price, % relative 35
14
Density, g/cm3 8.2
3.1
Embodied Carbon, kg CO2/kg material 4.5
8.4
Embodied Energy, MJ/kg 70
160
Embodied Water, L/kg 400
1140

Common Calculations

Stiffness to Weight: Axial, points 8.3
13
Stiffness to Weight: Bending, points 20
45
Strength to Weight: Axial, points 22
12 to 13
Strength to Weight: Bending, points 20
19 to 20
Thermal Diffusivity, mm2/s 12
69
Thermal Shock Resistance, points 22
6.1 to 6.3

Alloy Composition

Aluminum (Al), % 10.7 to 11.5
86.6 to 91.5
Cobalt (Co), % 1.0 to 2.0
0
Copper (Cu), % 68.6 to 74.4
0.7 to 1.3
Iron (Fe), % 0.4 to 1.0
0 to 0.7
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 13.5 to 16.5
0.3 to 0.7
Silicon (Si), % 0 to 0.020
2.0 to 3.0
Tin (Sn), % 0 to 0.050
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Residuals, % 0
0 to 0.3