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AWS BNi-1a vs. 518.0 Aluminum

AWS BNi-1a belongs to the nickel alloys classification, while 518.0 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 518.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
67
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 70
25
Tensile Strength: Ultimate (UTS), MPa 450
310

Thermal Properties

Latent Heat of Fusion, J/g 370
390
Melting Completion (Liquidus), °C 1080
620
Melting Onset (Solidus), °C 980
560
Specific Heat Capacity, J/kg-K 500
900
Thermal Expansion, µm/m-K 12
24

Otherwise Unclassified Properties

Base Metal Price, % relative 55
9.5
Density, g/cm3 8.0
2.7
Embodied Carbon, kg CO2/kg material 8.8
9.4
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 240
1160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 16
32
Strength to Weight: Bending, points 16
38
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 0 to 0.050
88.1 to 92.5
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 13 to 15
0
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 4.0 to 5.0
0 to 1.8
Magnesium (Mg), % 0
7.5 to 8.5
Manganese (Mn), % 0
0 to 0.35
Nickel (Ni), % 70.6 to 76.3
0 to 0.15
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 4.0 to 5.0
0 to 0.35
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.15
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.25