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AWS BNi-2 vs. AWS BNi-10

Both AWS BNi-2 and AWS BNi-10 are nickel alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is AWS BNi-2 and the bottom bar is AWS BNi-10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 68
76
Tensile Strength: Ultimate (UTS), MPa 440
600

Thermal Properties

Brazing Temperature, °C 1010 to 1180
1150 to 1200
Latent Heat of Fusion, J/g 360
330
Melting Completion (Liquidus), °C 1000
1110
Melting Onset (Solidus), °C 970
970
Specific Heat Capacity, J/kg-K 490
440
Thermal Expansion, µm/m-K 11
11

Otherwise Unclassified Properties

Base Metal Price, % relative 55
80
Density, g/cm3 8.2
9.4
Embodied Carbon, kg CO2/kg material 9.3
11
Embodied Energy, MJ/kg 130
160
Embodied Water, L/kg 230
230

Common Calculations

Stiffness to Weight: Axial, points 12
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 16
17
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0 to 0.050
0 to 0.050
Boron (B), % 2.8 to 3.5
2.0 to 3.0
Carbon (C), % 0 to 0.060
0.4 to 0.55
Chromium (Cr), % 6.0 to 8.0
10 to 13
Cobalt (Co), % 0 to 0.1
0 to 0.1
Iron (Fe), % 2.5 to 3.5
2.5 to 4.5
Nickel (Ni), % 79.1 to 84.8
57.2 to 67.1
Phosphorus (P), % 0 to 0.020
0 to 0.020
Selenium (Se), % 0 to 0.0050
0 to 0.0050
Silicon (Si), % 4.0 to 5.0
3.0 to 4.0
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0 to 0.050
0 to 0.050
Tungsten (W), % 0
15 to 17
Zirconium (Zr), % 0 to 0.050
0 to 0.050
Residuals, % 0
0 to 0.5