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AWS ENi-1 vs. 2618 Aluminum

AWS ENi-1 belongs to the nickel alloys classification, while 2618 aluminum belongs to the aluminum 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 AWS ENi-1 and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
71
Elongation at Break, % 22
5.8
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 69
27
Tensile Strength: Ultimate (UTS), MPa 470
420

Thermal Properties

Latent Heat of Fusion, J/g 310
390
Melting Completion (Liquidus), °C 1360
640
Melting Onset (Solidus), °C 1310
550
Specific Heat Capacity, J/kg-K 450
880
Thermal Conductivity, W/m-K 73
160
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
37
Electrical Conductivity: Equal Weight (Specific), % IACS 19
110

Otherwise Unclassified Properties

Base Metal Price, % relative 60
11
Density, g/cm3 8.7
2.9
Embodied Carbon, kg CO2/kg material 11
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 230
1150

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
47
Strength to Weight: Axial, points 15
40
Strength to Weight: Bending, points 15
42
Thermal Diffusivity, mm2/s 19
62
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0 to 1.0
92.4 to 94.9
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0 to 0.25
1.9 to 2.7
Iron (Fe), % 0 to 0.75
0.9 to 1.3
Magnesium (Mg), % 0
1.3 to 1.8
Manganese (Mn), % 0 to 0.75
0
Nickel (Ni), % 92 to 99
0.9 to 1.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.3
0.1 to 0.25
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 1.0 to 4.0
0.040 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15