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AWS BNi-1a vs. 6061 Aluminum

AWS BNi-1a belongs to the nickel alloys classification, while 6061 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 6061 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
69
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 70
26
Tensile Strength: Ultimate (UTS), MPa 450
130 to 410

Thermal Properties

Latent Heat of Fusion, J/g 370
400
Melting Completion (Liquidus), °C 1080
650
Melting Onset (Solidus), °C 980
580
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
8.3
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 240
1180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 16
13 to 42
Strength to Weight: Bending, points 16
21 to 45
Thermal Shock Resistance, points 15
5.7 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.050
95.9 to 98.6
Boron (B), % 2.8 to 3.5
0
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 13 to 15
0.040 to 0.35
Cobalt (Co), % 0 to 0.1
0
Copper (Cu), % 0
0.15 to 0.4
Iron (Fe), % 4.0 to 5.0
0 to 0.7
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0
0 to 0.15
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
0.4 to 0.8
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