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CR005A Copper vs. 4343 Aluminum

CR005A copper belongs to the copper alloys classification, while 4343 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 CR005A copper and the bottom bar is 4343 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
71
Elongation at Break, % 15
4.4
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 43
27
Tensile Strength: Ultimate (UTS), MPa 230
110
Tensile Strength: Yield (Proof), MPa 140
62

Thermal Properties

Latent Heat of Fusion, J/g 210
510
Maximum Temperature: Mechanical, °C 200
160
Melting Completion (Liquidus), °C 1090
620
Melting Onset (Solidus), °C 1040
580
Specific Heat Capacity, J/kg-K 390
900
Thermal Conductivity, W/m-K 380
180
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
44
Electrical Conductivity: Equal Weight (Specific), % IACS 100
150

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 9.0
2.6
Embodied Carbon, kg CO2/kg material 2.6
7.9
Embodied Energy, MJ/kg 41
150
Embodied Water, L/kg 320
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
4.1
Resilience: Unit (Modulus of Resilience), kJ/m3 83
27
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 18
53
Strength to Weight: Axial, points 7.1
12
Strength to Weight: Bending, points 9.3
20
Thermal Diffusivity, mm2/s 110
77
Thermal Shock Resistance, points 8.1
5.2

Alloy Composition

Aluminum (Al), % 0
90.3 to 93.2
Copper (Cu), % 99.9 to 100
0 to 0.25
Iron (Fe), % 0
0 to 0.8
Manganese (Mn), % 0
0 to 0.1
Oxygen (O), % 0 to 0.040
0
Silicon (Si), % 0
6.8 to 8.2
Silver (Ag), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15