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3004 Aluminum vs. C72700 Copper-nickel

3004 aluminum belongs to the aluminum alloys classification, while C72700 copper-nickel belongs to the copper alloys. There are 29 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 3004 aluminum and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 1.1 to 19
4.0 to 36
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
44
Shear Strength, MPa 100 to 180
310 to 620
Tensile Strength: Ultimate (UTS), MPa 170 to 310
460 to 1070
Tensile Strength: Yield (Proof), MPa 68 to 270
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 400
210
Maximum Temperature: Mechanical, °C 180
200
Melting Completion (Liquidus), °C 650
1100
Melting Onset (Solidus), °C 630
930
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 160
54
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.8
8.8
Embodied Carbon, kg CO2/kg material 8.3
4.0
Embodied Energy, MJ/kg 150
62
Embodied Water, L/kg 1180
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 27
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 540
1420 to 4770
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 18 to 31
14 to 34
Strength to Weight: Bending, points 25 to 37
15 to 26
Thermal Diffusivity, mm2/s 65
16
Thermal Shock Resistance, points 7.6 to 13
16 to 38

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
0
Copper (Cu), % 0 to 0.25
82.1 to 86
Iron (Fe), % 0 to 0.7
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0.8 to 1.3
0 to 0.15
Manganese (Mn), % 1.0 to 1.5
0.050 to 0.3
Nickel (Ni), % 0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Silicon (Si), % 0 to 0.3
0
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 0 to 0.25
0 to 0.5
Residuals, % 0
0 to 0.3