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6105 Aluminum vs. C55180 Copper

6105 aluminum belongs to the aluminum alloys classification, while C55180 copper belongs to the copper alloys. There are 26 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 6105 aluminum and the bottom bar is C55180 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 9.0 to 16
20
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 190 to 280
200
Tensile Strength: Yield (Proof), MPa 120 to 270
100

Thermal Properties

Latent Heat of Fusion, J/g 410
200
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 650
920
Melting Onset (Solidus), °C 600
710
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 180 to 190
200
Thermal Expansion, µm/m-K 23
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
29
Density, g/cm3 2.7
8.6
Embodied Carbon, kg CO2/kg material 8.3
2.5
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1180
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 27
34
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
48
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 51
18
Strength to Weight: Axial, points 20 to 29
6.4
Strength to Weight: Bending, points 28 to 35
8.8
Thermal Diffusivity, mm2/s 72 to 79
56
Thermal Shock Resistance, points 8.6 to 12
7.9

Alloy Composition

Aluminum (Al), % 97.2 to 99
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
94.7 to 95.2
Iron (Fe), % 0 to 0.35
0
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.1
0
Phosphorus (P), % 0
4.8 to 5.2
Silicon (Si), % 0.6 to 1.0
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.15