AWS BAu-5 vs. AWS BNi-3
AWS BAu-5 belongs to the otherwise unclassified metals classification, while AWS BNi-3 belongs to the nickel alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 16 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is AWS BAu-5 and the bottom bar is AWS BNi-3.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 170 |
| Poisson's Ratio | 0.37 | |
| 0.31 |
| Shear Modulus, GPa | 50 | |
| 66 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 430 |
Thermal Properties
| Brazing Temperature, °C | 1170 to 1230 | |
| 1010 to 1180 |
| Latent Heat of Fusion, J/g | 180 | |
| 350 |
| Melting Completion (Liquidus), °C | 1170 | |
| 1040 |
| Melting Onset (Solidus), °C | 1140 | |
| 980 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 480 |
| Thermal Expansion, µm/m-K | 12 | |
| 10 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 8.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.8 | |
| 12 |
| Stiffness to Weight: Bending, points | 13 | |
| 22 |
| Strength to Weight: Axial, points | 4.5 | |
| 14 |
| Strength to Weight: Bending, points | 6.0 | |
| 15 |
| Thermal Shock Resistance, points | 9.0 | |
| 17 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0 to 0.050 |
| Boron (B), % | 0 | |
| 2.8 to 3.5 |
| Carbon (C), % | 0 | |
| 0 to 0.060 |
| Cobalt (Co), % | 0 | |
| 0 to 0.1 |
| Gold (Au), % | 29.5 to 30.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 35.5 to 36.4 | |
| 90.1 to 93.3 |
| Palladium (Pd), % | 33.5 to 34.5 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Selenium (Se), % | 0 | |
| 0 to 0.0050 |
| Silicon (Si), % | 0 | |
| 4.0 to 5.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.020 |
| Titanium (Ti), % | 0 | |
| 0 to 0.050 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.5 |