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6065 Aluminum vs. C99300 Copper

6065 aluminum belongs to the aluminum alloys classification, while C99300 copper belongs to the copper 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 6065 aluminum and the bottom bar is C99300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
120
Elongation at Break, % 4.5 to 11
2.0
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
46
Tensile Strength: Ultimate (UTS), MPa 310 to 400
660
Tensile Strength: Yield (Proof), MPa 270 to 380
380

Thermal Properties

Latent Heat of Fusion, J/g 400
240
Maximum Temperature: Mechanical, °C 180
250
Melting Completion (Liquidus), °C 640
1080
Melting Onset (Solidus), °C 590
1070
Specific Heat Capacity, J/kg-K 890
450
Thermal Conductivity, W/m-K 170
43
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
35
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 8.4
4.5
Embodied Energy, MJ/kg 150
70
Embodied Water, L/kg 1200
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 34
11
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 1040
590
Stiffness to Weight: Axial, points 14
8.3
Stiffness to Weight: Bending, points 49
20
Strength to Weight: Axial, points 31 to 40
22
Strength to Weight: Bending, points 36 to 43
20
Thermal Diffusivity, mm2/s 67
12
Thermal Shock Resistance, points 14 to 18
22

Alloy Composition

Aluminum (Al), % 94.4 to 98.2
10.7 to 11.5
Bismuth (Bi), % 0.5 to 1.5
0
Chromium (Cr), % 0 to 0.15
0
Cobalt (Co), % 0
1.0 to 2.0
Copper (Cu), % 0.15 to 0.4
68.6 to 74.4
Iron (Fe), % 0 to 0.7
0.4 to 1.0
Lead (Pb), % 0 to 0.050
0 to 0.020
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0
13.5 to 16.5
Silicon (Si), % 0.4 to 0.8
0 to 0.020
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.15
0
Residuals, % 0
0 to 0.3