AWS BVAg-31 vs. AWS BAg-19
Both AWS BVAg-31 and AWS BAg-19 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 65% of their average alloy composition in common.
For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is AWS BAg-19.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 90 | |
| 74 |
| Poisson's Ratio | 0.36 | |
| 0.37 |
| Shear Modulus, GPa | 33 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 180 | |
| 140 |
Thermal Properties
| Brazing Temperature, °C | 850 to 890 | |
| 770 to 980 |
| Latent Heat of Fusion, J/g | 150 | |
| 120 |
| Melting Completion (Liquidus), °C | 850 | |
| 890 |
| Melting Onset (Solidus), °C | 820 | |
| 760 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 250 |
| Thermal Expansion, µm/m-K | 18 | |
| 20 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.9 | |
| 4.0 |
| Stiffness to Weight: Bending, points | 15 | |
| 14 |
| Strength to Weight: Axial, points | 4.9 | |
| 3.8 |
| Strength to Weight: Bending, points | 7.0 | |
| 5.8 |
| Thermal Shock Resistance, points | 7.8 | |
| 6.9 |
Alloy Composition
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| Cadmium (Cd), % | 0 to 0.0010 | |
| 0 |
| Carbon (C), % | 0 to 0.0050 | |
| 0 |
| Copper (Cu), % | 31 to 33 | |
| 6.6 to 7.9 |
| Lead (Pb), % | 0 to 0.0020 | |
| 0 |
| Lithium (Li), % | 0 | |
| 0.15 to 0.3 |
| Palladium (Pd), % | 8.0 to 12 | |
| 0 |
| Phosphorus (P), % | 0 to 0.0020 | |
| 0 |
| Silver (Ag), % | 57 to 59 | |
| 92 to 93 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.15 |