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AWS BNi-1a vs. 2024 Aluminum

AWS BNi-1a belongs to the nickel alloys classification, while 2024 aluminum belongs to the aluminum alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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-1a and the bottom bar is 2024 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
71
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 70
27
Tensile Strength: Ultimate (UTS), MPa 450
200 to 540

Thermal Properties

Latent Heat of Fusion, J/g 370
390
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 980
500
Specific Heat Capacity, J/kg-K 500
880
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Base Metal Price, % relative 55
11
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 8.8
8.3
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 240
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 16
18 to 50
Strength to Weight: Bending, points 16
25 to 49
Thermal Shock Resistance, points 15
8.6 to 24

Alloy Composition

Aluminum (Al), % 0 to 0.050
90.7 to 94.7
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 13 to 15
0 to 0.1
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
3.8 to 4.9
Iron (Fe), % 4.0 to 5.0
0 to 0.5
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0
0.3 to 0.9
Nickel (Ni), % 70.6 to 76.3
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 0.15
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0 to 0.050
0 to 0.2
Residuals, % 0
0 to 0.15