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C96600 Copper vs. 2218 Aluminum

C96600 copper belongs to the copper alloys classification, while 2218 aluminum belongs to the aluminum 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 C96600 copper and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
73
Elongation at Break, % 7.0
6.8 to 10
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 52
27
Tensile Strength: Ultimate (UTS), MPa 760
330 to 430
Tensile Strength: Yield (Proof), MPa 480
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 240
390
Maximum Temperature: Mechanical, °C 280
220
Melting Completion (Liquidus), °C 1180
640
Melting Onset (Solidus), °C 1100
510
Specific Heat Capacity, J/kg-K 400
870
Thermal Conductivity, W/m-K 30
140
Thermal Expansion, µm/m-K 15
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.0
37
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
110

Otherwise Unclassified Properties

Base Metal Price, % relative 65
11
Density, g/cm3 8.9
3.1
Embodied Carbon, kg CO2/kg material 7.0
8.2
Embodied Energy, MJ/kg 100
150
Embodied Water, L/kg 280
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 47
27 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 830
450 to 650
Stiffness to Weight: Axial, points 8.7
13
Stiffness to Weight: Bending, points 20
45
Strength to Weight: Axial, points 24
30 to 39
Strength to Weight: Bending, points 21
34 to 41
Thermal Diffusivity, mm2/s 8.4
52
Thermal Shock Resistance, points 25
15 to 19

Alloy Composition

Aluminum (Al), % 0
88.8 to 93.6
Beryllium (Be), % 0.4 to 0.7
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 63.5 to 69.8
3.5 to 4.5
Iron (Fe), % 0.8 to 1.1
0 to 1.0
Lead (Pb), % 0 to 0.010
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 1.0
0 to 0.2
Nickel (Ni), % 29 to 33
1.7 to 2.3
Silicon (Si), % 0 to 0.15
0 to 0.9
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15