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3303 Aluminum vs. C71640 Copper-nickel

3303 aluminum belongs to the aluminum alloys classification, while C71640 copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, 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 3303 aluminum and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
52
Tensile Strength: Ultimate (UTS), MPa 110
490 to 630
Tensile Strength: Yield (Proof), MPa 39
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 400
240
Maximum Temperature: Mechanical, °C 180
260
Melting Completion (Liquidus), °C 650
1180
Melting Onset (Solidus), °C 620
1120
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 170
29
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 43
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
40
Density, g/cm3 2.8
8.9
Embodied Carbon, kg CO2/kg material 8.1
5.0
Embodied Energy, MJ/kg 150
73
Embodied Water, L/kg 1180
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 11
130 to 750
Stiffness to Weight: Axial, points 14
8.7
Stiffness to Weight: Bending, points 49
20
Strength to Weight: Axial, points 11
15 to 20
Strength to Weight: Bending, points 18
16 to 18
Thermal Diffusivity, mm2/s 67
8.2
Thermal Shock Resistance, points 4.8
16 to 21

Alloy Composition

Aluminum (Al), % 96.6 to 99
0
Copper (Cu), % 0.050 to 0.2
61.7 to 67.8
Iron (Fe), % 0 to 0.7
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 1.0 to 1.5
1.5 to 2.5
Nickel (Ni), % 0
29 to 32
Silicon (Si), % 0 to 0.6
0
Zinc (Zn), % 0 to 0.3
0 to 1.0
Residuals, % 0 to 0.15
0 to 0.5