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AWS BNi-7 vs. Nickel 686

Both AWS BNi-7 and nickel 686 are nickel alloys. They have 70% 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 AWS BNi-7 and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170
220
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 67
77
Tensile Strength: Ultimate (UTS), MPa 550
780

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 890
1380
Melting Onset (Solidus), °C 890
1340
Specific Heat Capacity, J/kg-K 490
420
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 55
70
Density, g/cm3 8.0
9.0
Embodied Carbon, kg CO2/kg material 8.8
12
Embodied Energy, MJ/kg 120
170
Embodied Water, L/kg 240
300

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.060
0 to 0.010
Chromium (Cr), % 13 to 15
19 to 23
Cobalt (Co), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
0 to 5.0
Manganese (Mn), % 0 to 0.040
0 to 0.75
Molybdenum (Mo), % 0
15 to 17
Nickel (Ni), % 73.3 to 77.3
49.5 to 63
Phosphorus (P), % 9.7 to 10.5
0 to 0.040
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.1
0 to 0.080
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0 to 0.050
0.020 to 0.25
Tungsten (W), % 0
3.0 to 4.4
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0