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C55181 Copper vs. 4104 Aluminum

C55181 copper belongs to the copper alloys classification, while 4104 aluminum belongs to the aluminum alloys. There are 21 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 C55181 copper and the bottom bar is 4104 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 200
110

Thermal Properties

Brazing Temperature, °C 730 to 840
590 to 600
Latent Heat of Fusion, J/g 190
540
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 790
600
Melting Onset (Solidus), °C 710
560
Specific Heat Capacity, J/kg-K 410
900
Thermal Expansion, µm/m-K 16
22

Otherwise Unclassified Properties

Base Metal Price, % relative 28
9.5
Density, g/cm3 8.5
2.6
Embodied Carbon, kg CO2/kg material 2.4
8.0
Embodied Energy, MJ/kg 38
150
Embodied Water, L/kg 290
1080

Common Calculations

Stiffness to Weight: Axial, points 7.0
15
Stiffness to Weight: Bending, points 19
54
Strength to Weight: Axial, points 6.5
12
Strength to Weight: Bending, points 8.9
20
Thermal Shock Resistance, points 8.2
5.1

Alloy Composition

Aluminum (Al), % 0
85.8 to 90
Bismuth (Bi), % 0
0.020 to 0.2
Copper (Cu), % 92.4 to 93
0 to 0.25
Iron (Fe), % 0
0 to 0.8
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 0
0 to 0.1
Phosphorus (P), % 7.0 to 7.5
0
Silicon (Si), % 0
9.0 to 10.5
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15