AWS BNi-4 vs. AWS BNi-9
Both AWS BNi-4 and AWS BNi-9 are nickel alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 83% of their average alloy composition in common.
For each property being compared, the top bar is AWS BNi-4 and the bottom bar is AWS BNi-9.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 180 | |
190 |
Poisson's Ratio | 0.31 | |
0.3 |
Shear Modulus, GPa | 67 | |
72 |
Tensile Strength: Ultimate (UTS), MPa | 430 | |
580 |
Thermal Properties
Brazing Temperature, °C | 1010 to 1180 | |
1070 to 1200 |
Latent Heat of Fusion, J/g | 340 | |
300 |
Melting Completion (Liquidus), °C | 1070 | |
1060 |
Melting Onset (Solidus), °C | 980 | |
1060 |
Specific Heat Capacity, J/kg-K | 470 | |
480 |
Thermal Expansion, µm/m-K | 11 | |
12 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 60 | |
60 |
Density, g/cm3 | 8.5 | |
8.4 |
Embodied Carbon, kg CO2/kg material | 10 | |
9.3 |
Embodied Energy, MJ/kg | 140 | |
130 |
Embodied Water, L/kg | 220 | |
260 |
Common Calculations
Stiffness to Weight: Axial, points | 12 | |
12 |
Stiffness to Weight: Bending, points | 22 | |
23 |
Strength to Weight: Axial, points | 14 | |
19 |
Strength to Weight: Bending, points | 15 | |
18 |
Thermal Shock Resistance, points | 16 | |
19 |
Alloy Composition
Aluminum (Al), % | 0 to 0.050 | |
0 to 0.050 |
Boron (B), % | 1.5 to 2.2 | |
3.3 to 4.0 |
Carbon (C), % | 0 to 0.060 | |
0 to 0.060 |
Chromium (Cr), % | 0 | |
13.5 to 16.5 |
Cobalt (Co), % | 0 to 0.1 | |
0 to 0.1 |
Iron (Fe), % | 0 to 1.5 | |
0 to 1.5 |
Nickel (Ni), % | 91.4 to 95.5 | |
77.1 to 83.3 |
Phosphorus (P), % | 0 to 0.020 | |
0 to 0.020 |
Selenium (Se), % | 0 to 0.0050 | |
0 to 0.0050 |
Silicon (Si), % | 3.0 to 4.0 | |
0 |
Sulfur (S), % | 0 to 0.020 | |
0 to 0.020 |
Titanium (Ti), % | 0 to 0.050 | |
0 to 0.050 |
Zirconium (Zr), % | 0 to 0.050 | |
0 to 0.050 |
Residuals, % | 0 | |
0 to 0.5 |