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8090 Aluminum vs. AWS ERNiCu-7

8090 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 (6, 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 8090 aluminum and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
160
Elongation at Break, % 3.5 to 13
34
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
61
Tensile Strength: Ultimate (UTS), MPa 340 to 490
550

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Melting Completion (Liquidus), °C 660
1280
Melting Onset (Solidus), °C 600
1240
Specific Heat Capacity, J/kg-K 960
440
Thermal Conductivity, W/m-K 95 to 160
20
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 66
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
50
Density, g/cm3 2.7
8.7
Embodied Carbon, kg CO2/kg material 8.6
8.5
Embodied Energy, MJ/kg 170
120
Embodied Water, L/kg 1160
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 50
21
Strength to Weight: Axial, points 34 to 49
18
Strength to Weight: Bending, points 39 to 50
17
Thermal Diffusivity, mm2/s 36 to 60
5.3
Thermal Shock Resistance, points 15 to 22
19

Alloy Composition

Aluminum (Al), % 93 to 98.4
0 to 1.3
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
18.3 to 36.5
Iron (Fe), % 0 to 0.3
0 to 2.5
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0 to 4.0
Nickel (Ni), % 0
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
1.5 to 3.0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0 to 0.5