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2618 Aluminum vs. CR016A Copper

2618 aluminum belongs to the aluminum alloys classification, while CR016A 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 2618 aluminum and the bottom bar is CR016A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Elongation at Break, % 5.8
15
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
43
Tensile Strength: Ultimate (UTS), MPa 420
230
Tensile Strength: Yield (Proof), MPa 350
140

Thermal Properties

Latent Heat of Fusion, J/g 390
210
Maximum Temperature: Mechanical, °C 210
200
Melting Completion (Liquidus), °C 640
1090
Melting Onset (Solidus), °C 550
1040
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 160
390
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
98
Electrical Conductivity: Equal Weight (Specific), % IACS 110
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
35
Density, g/cm3 2.9
9.0
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1150
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
31
Resilience: Unit (Modulus of Resilience), kJ/m3 850
83
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 47
18
Strength to Weight: Axial, points 40
7.1
Strength to Weight: Bending, points 42
9.3
Thermal Diffusivity, mm2/s 62
110
Thermal Shock Resistance, points 19
8.1

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 1.9 to 2.7
99.843 to 99.919
Iron (Fe), % 0.9 to 1.3
0
Magnesium (Mg), % 1.3 to 1.8
0
Nickel (Ni), % 0.9 to 1.2
0
Phosphorus (P), % 0
0.0010 to 0.0070
Silicon (Si), % 0.1 to 0.25
0
Silver (Ag), % 0
0.080 to 0.12
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0