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B443.0 Aluminum vs. AWS ERNiCu-7

B443.0 aluminum belongs to the aluminum alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 B443.0 aluminum and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
160
Elongation at Break, % 4.9
34
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
61
Tensile Strength: Ultimate (UTS), MPa 150
550

Thermal Properties

Latent Heat of Fusion, J/g 470
280
Melting Completion (Liquidus), °C 620
1280
Melting Onset (Solidus), °C 600
1240
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 150
20
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
50
Density, g/cm3 2.7
8.7
Embodied Carbon, kg CO2/kg material 8.0
8.5
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1130
250

Common Calculations

Stiffness to Weight: Axial, points 15
10
Stiffness to Weight: Bending, points 52
21
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 61
5.3
Thermal Shock Resistance, points 6.8
19

Alloy Composition

Aluminum (Al), % 91.9 to 95.5
0 to 1.3
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0 to 0.15
18.3 to 36.5
Iron (Fe), % 0 to 0.8
0 to 2.5
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.35
0 to 4.0
Nickel (Ni), % 0
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 4.5 to 6.0
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
1.5 to 3.0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0
0 to 0.5