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4047 Aluminum vs. AWS ENiCu-7

4047 aluminum belongs to the aluminum alloys classification, while AWS ENiCu-7 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 4047 aluminum and the bottom bar is AWS ENiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
160
Elongation at Break, % 3.4
34
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
62
Tensile Strength: Ultimate (UTS), MPa 120
550

Thermal Properties

Latent Heat of Fusion, J/g 570
280
Melting Completion (Liquidus), °C 580
1270
Melting Onset (Solidus), °C 580
1230
Specific Heat Capacity, J/kg-K 900
430
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
50
Density, g/cm3 2.5
8.7
Embodied Carbon, kg CO2/kg material 7.7
8.0
Embodied Energy, MJ/kg 140
110
Embodied Water, L/kg 1050
250

Common Calculations

Stiffness to Weight: Axial, points 16
10
Stiffness to Weight: Bending, points 55
21
Strength to Weight: Axial, points 13
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 59
5.5
Thermal Shock Resistance, points 5.6
18

Alloy Composition


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Aluminum (Al), % 85.3 to 89
0 to 0.75
Carbon (C), % 0
0 to 0.1
Copper (Cu), % 0 to 0.3
20.6 to 38
Iron (Fe), % 0 to 0.8
0 to 2.5
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.15
0 to 4.0
Nickel (Ni), % 0
62 to 69
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 11 to 13
0 to 1.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0 to 0.5