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6105 Aluminum vs. C15900 Copper

6105 aluminum belongs to the aluminum alloys classification, while C15900 copper belongs to the copper alloys. There are 29 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 6105 aluminum and the bottom bar is C15900 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 9.0 to 16
6.5
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Shear Strength, MPa 120 to 170
420
Tensile Strength: Ultimate (UTS), MPa 190 to 280
720
Tensile Strength: Yield (Proof), MPa 120 to 270
240

Thermal Properties

Latent Heat of Fusion, J/g 410
210
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 650
1080
Melting Onset (Solidus), °C 600
1030
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 180 to 190
280
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 46 to 50
48
Electrical Conductivity: Equal Weight (Specific), % IACS 150 to 170
49

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
30
Density, g/cm3 2.7
8.8
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 27
37
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
260
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 51
18
Strength to Weight: Axial, points 20 to 29
23
Strength to Weight: Bending, points 28 to 35
20
Thermal Diffusivity, mm2/s 72 to 79
80
Thermal Shock Resistance, points 8.6 to 12
26

Alloy Composition

Aluminum (Al), % 97.2 to 99
0.76 to 0.84
Carbon (C), % 0
0.27 to 0.33
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
97.5 to 97.9
Iron (Fe), % 0 to 0.35
0 to 0.040
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.1
0
Oxygen (O), % 0
0.4 to 0.54
Silicon (Si), % 0.6 to 1.0
0
Titanium (Ti), % 0 to 0.1
0.66 to 0.74
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0