AWS BVAu-2 vs. AWS BAg-20
Both AWS BVAu-2 and AWS BAg-20 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a modest 20% 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 (2, in this case) are not shown.
For each property being compared, the top bar is AWS BVAu-2 and the bottom bar is AWS BAg-20.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 93 |
| Poisson's Ratio | 0.4 | |
| 0.32 |
| Shear Modulus, GPa | 36 | |
| 35 |
| Tensile Strength: Ultimate (UTS), MPa | 150 | |
| 160 |
Thermal Properties
| Brazing Temperature, °C | 890 to 1010 | |
| 770 to 900 |
| Latent Heat of Fusion, J/g | 92 | |
| 150 |
| Melting Completion (Liquidus), °C | 890 | |
| 770 |
| Melting Onset (Solidus), °C | 890 | |
| 680 |
| Specific Heat Capacity, J/kg-K | 180 | |
| 340 |
| Thermal Expansion, µm/m-K | 15 | |
| 21 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.6 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.3 | |
| 6.0 |
| Stiffness to Weight: Bending, points | 9.1 | |
| 17 |
| Strength to Weight: Axial, points | 2.4 | |
| 5.1 |
| Strength to Weight: Bending, points | 3.6 | |
| 7.6 |
| Thermal Shock Resistance, points | 7.1 | |
| 5.9 |
Alloy Composition
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| Cadmium (Cd), % | 0 to 0.0010 | |
| 0 |
| Carbon (C), % | 0 to 0.0050 | |
| 0 |
| Copper (Cu), % | 19.5 to 20.5 | |
| 37 to 39 |
| Gold (Au), % | 79.5 to 80.5 | |
| 0 |
| Lead (Pb), % | 0 to 0.0020 | |
| 0 |
| Phosphorus (P), % | 0 to 0.0020 | |
| 0 |
| Silver (Ag), % | 0 | |
| 29 to 31 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 30 to 34 |
| Residuals, % | 0 | |
| 0 to 0.15 |