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AWS BNi-6 vs. 6151 Aluminum

AWS BNi-6 belongs to the nickel alloys classification, while 6151 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-6 and the bottom bar is 6151 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
69
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 62
26
Tensile Strength: Ultimate (UTS), MPa 450
330 to 340

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 880
650
Melting Onset (Solidus), °C 880
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 9.8
23

Otherwise Unclassified Properties

Base Metal Price, % relative 55
9.5
Density, g/cm3 8.2
2.7
Embodied Carbon, kg CO2/kg material 9.4
8.2
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 210
1180

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0 to 0.050
95.6 to 98.8
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 0
0.15 to 0.35
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 0
0 to 1.0
Magnesium (Mg), % 0
0.45 to 0.8
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 87.2 to 90
0
Phosphorus (P), % 10 to 12
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0
0.6 to 1.2
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
Residuals, % 0
0 to 0.15