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8090 Aluminum vs. AWS ERNi-1

8090 aluminum belongs to the aluminum alloys classification, while AWS ERNi-1 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 ERNi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
180
Elongation at Break, % 3.5 to 13
22
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 25
69
Tensile Strength: Ultimate (UTS), MPa 340 to 490
470

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Melting Completion (Liquidus), °C 660
1360
Melting Onset (Solidus), °C 600
1310
Specific Heat Capacity, J/kg-K 960
450
Thermal Conductivity, W/m-K 95 to 160
73
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
19
Electrical Conductivity: Equal Weight (Specific), % IACS 66
19

Otherwise Unclassified Properties

Base Metal Price, % relative 18
60
Density, g/cm3 2.7
8.7
Embodied Carbon, kg CO2/kg material 8.6
11
Embodied Energy, MJ/kg 170
150
Embodied Water, L/kg 1160
230

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 50
22
Strength to Weight: Axial, points 34 to 49
15
Strength to Weight: Bending, points 39 to 50
15
Thermal Diffusivity, mm2/s 36 to 60
19
Thermal Shock Resistance, points 15 to 22
17

Alloy Composition

Aluminum (Al), % 93 to 98.4
0 to 1.5
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
0 to 0.25
Iron (Fe), % 0 to 0.3
0 to 1.0
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Nickel (Ni), % 0
93 to 98
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
2.0 to 3.5
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0 to 0.5