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5449 Aluminum vs. C18100 Copper

5449 aluminum belongs to the aluminum alloys classification, while C18100 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 5449 aluminum and the bottom bar is C18100 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
120
Elongation at Break, % 4.0 to 17
8.3
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
47
Shear Strength, MPa 130 to 190
300
Tensile Strength: Ultimate (UTS), MPa 210 to 330
510
Tensile Strength: Yield (Proof), MPa 91 to 260
460

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 190
200
Melting Completion (Liquidus), °C 650
1080
Melting Onset (Solidus), °C 590
1020
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 140
320
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
80
Electrical Conductivity: Equal Weight (Specific), % IACS 110
81

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.8
8.9
Embodied Carbon, kg CO2/kg material 8.5
2.7
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 29
40
Resilience: Unit (Modulus of Resilience), kJ/m3 60 to 480
900
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 22 to 33
16
Strength to Weight: Bending, points 29 to 39
16
Thermal Diffusivity, mm2/s 56
94
Thermal Shock Resistance, points 9.4 to 15
18

Alloy Composition

Aluminum (Al), % 94.1 to 97.8
0
Chromium (Cr), % 0 to 0.3
0.4 to 1.2
Copper (Cu), % 0 to 0.3
98.7 to 99.49
Iron (Fe), % 0 to 0.7
0
Magnesium (Mg), % 1.6 to 2.6
0.030 to 0.060
Manganese (Mn), % 0.6 to 1.1
0
Silicon (Si), % 0 to 0.4
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
0
Zirconium (Zr), % 0
0.080 to 0.2
Residuals, % 0
0 to 0.5