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8090 Aluminum vs. AWS BNi-6

8090 aluminum belongs to the aluminum alloys classification, while AWS BNi-6 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (12, 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 BNi-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
160
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 25
62
Tensile Strength: Ultimate (UTS), MPa 340 to 490
450

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 660
880
Melting Onset (Solidus), °C 600
880
Specific Heat Capacity, J/kg-K 960
480
Thermal Expansion, µm/m-K 24
9.8

Otherwise Unclassified Properties

Base Metal Price, % relative 18
55
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.6
9.4
Embodied Energy, MJ/kg 170
130
Embodied Water, L/kg 1160
210

Common Calculations

Stiffness to Weight: Axial, points 14
11
Stiffness to Weight: Bending, points 50
22
Strength to Weight: Axial, points 34 to 49
15
Strength to Weight: Bending, points 39 to 50
16
Thermal Shock Resistance, points 15 to 22
20

Alloy Composition

Aluminum (Al), % 93 to 98.4
0 to 0.050
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0 to 0.1
0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 1.0 to 1.6
0
Iron (Fe), % 0 to 0.3
0
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
87.2 to 90
Phosphorus (P), % 0
10 to 12
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0 to 0.050
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0 to 0.050
Residuals, % 0 to 0.15
0 to 0.5