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A242.0 Aluminum vs. AWS ERNiCu-7

A242.0 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 (2, 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 A242.0 aluminum and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
160
Elongation at Break, % 1.6
34
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
61
Tensile Strength: Ultimate (UTS), MPa 220
550

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Melting Completion (Liquidus), °C 680
1280
Melting Onset (Solidus), °C 550
1240
Specific Heat Capacity, J/kg-K 870
440
Thermal Conductivity, W/m-K 140
20
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
50
Density, g/cm3 3.1
8.7
Embodied Carbon, kg CO2/kg material 8.3
8.5
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1130
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 45
21
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 26
17
Thermal Diffusivity, mm2/s 52
5.3
Thermal Shock Resistance, points 9.3
19

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
0 to 1.3
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0.15 to 0.25
0
Copper (Cu), % 3.7 to 4.5
18.3 to 36.5
Iron (Fe), % 0 to 0.8
0 to 2.5
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
0 to 4.0
Nickel (Ni), % 1.8 to 2.3
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.6
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0.070 to 0.2
1.5 to 3.0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.5