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Nickel 686 vs. AWS BNi-3

Both nickel 686 and AWS BNi-3 are nickel alloys. They have 57% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is nickel 686 and the bottom bar is AWS BNi-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
170
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 77
66
Tensile Strength: Ultimate (UTS), MPa 780
430

Thermal Properties

Latent Heat of Fusion, J/g 320
350
Melting Completion (Liquidus), °C 1380
1040
Melting Onset (Solidus), °C 1340
980
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 70
60
Density, g/cm3 9.0
8.3
Embodied Carbon, kg CO2/kg material 12
9.9
Embodied Energy, MJ/kg 170
140
Embodied Water, L/kg 300
220

Common Calculations

Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 22
22
Strength to Weight: Axial, points 24
14
Strength to Weight: Bending, points 21
15
Thermal Shock Resistance, points 21
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0 to 0.010
0 to 0.060
Chromium (Cr), % 19 to 23
0
Cobalt (Co), % 0
0 to 0.1
Iron (Fe), % 0 to 5.0
0 to 0.5
Manganese (Mn), % 0 to 0.75
0
Molybdenum (Mo), % 15 to 17
0
Nickel (Ni), % 49.5 to 63
90.1 to 93.3
Phosphorus (P), % 0 to 0.040
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.080
4.0 to 5.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0.020 to 0.25
0 to 0.050
Tungsten (W), % 3.0 to 4.4
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5