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C18700 Copper vs. EN AC-44000 Aluminum

C18700 copper belongs to the copper alloys classification, while EN AC-44000 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 C18700 copper and the bottom bar is EN AC-44000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 9.0 to 9.6
7.3
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
27
Tensile Strength: Ultimate (UTS), MPa 290 to 330
180
Tensile Strength: Yield (Proof), MPa 230 to 250
86

Thermal Properties

Latent Heat of Fusion, J/g 210
560
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 1080
590
Melting Onset (Solidus), °C 950
590
Specific Heat Capacity, J/kg-K 380
910
Thermal Conductivity, W/m-K 380
140
Thermal Expansion, µm/m-K 17
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
36
Electrical Conductivity: Equal Weight (Specific), % IACS 99
130

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 9.0
2.5
Embodied Carbon, kg CO2/kg material 2.6
7.8
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 310
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
11
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
51
Stiffness to Weight: Axial, points 7.1
16
Stiffness to Weight: Bending, points 18
55
Strength to Weight: Axial, points 9.0 to 10
20
Strength to Weight: Bending, points 11 to 12
28
Thermal Diffusivity, mm2/s 110
61
Thermal Shock Resistance, points 10 to 12
8.4

Alloy Composition

Aluminum (Al), % 0
87.1 to 90
Copper (Cu), % 98 to 99.2
0 to 0.050
Iron (Fe), % 0
0 to 0.19
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0
0 to 0.45
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
10 to 11.8
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1