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AWS BNi-3 vs. 7022 Aluminum

AWS BNi-3 belongs to the nickel alloys classification, while 7022 aluminum belongs to the aluminum 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 AWS BNi-3 and the bottom bar is 7022 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
70
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 66
26
Tensile Strength: Ultimate (UTS), MPa 430
490 to 540

Thermal Properties

Latent Heat of Fusion, J/g 350
380
Melting Completion (Liquidus), °C 1040
640
Melting Onset (Solidus), °C 980
480
Specific Heat Capacity, J/kg-K 480
870
Thermal Expansion, µm/m-K 10
24

Otherwise Unclassified Properties

Base Metal Price, % relative 60
10
Density, g/cm3 8.3
2.9
Embodied Carbon, kg CO2/kg material 9.9
8.5
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 220
1130

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 22
47
Strength to Weight: Axial, points 14
47 to 51
Strength to Weight: Bending, points 15
47 to 50
Thermal Shock Resistance, points 17
21 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.050
87.9 to 92.4
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 0
0.1 to 0.3
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 0 to 0.5
0 to 0.5
Magnesium (Mg), % 0
2.6 to 3.7
Manganese (Mn), % 0
0.1 to 0.4
Nickel (Ni), % 90.1 to 93.3
0
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0 to 0.2
Zinc (Zn), % 0
4.3 to 5.2
Zirconium (Zr), % 0 to 0.050
0 to 0.2
Residuals, % 0
0 to 0.15