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Nickel 686 vs. AWS BNi-5a

Both nickel 686 and AWS BNi-5a are nickel alloys. They have 76% 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-5a.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 780
480

Thermal Properties

Latent Heat of Fusion, J/g 320
420
Melting Completion (Liquidus), °C 1380
1150
Melting Onset (Solidus), °C 1340
1070
Specific Heat Capacity, J/kg-K 420
500
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
55
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 12
9.0
Embodied Energy, MJ/kg 170
130
Embodied Water, L/kg 300
260

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 21
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0
1.0 to 1.5
Carbon (C), % 0 to 0.010
0 to 0.1
Chromium (Cr), % 19 to 23
18.5 to 19.5
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
70.1 to 73.5
Phosphorus (P), % 0 to 0.040
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0 to 0.080
7.0 to 7.5
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