AWS BAg-8 vs. AWS BAg-8a
Both AWS BAg-8 and AWS BAg-8a are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. Their average alloy composition is basically identical.
For each property being compared, the top bar is AWS BAg-8 and the bottom bar is AWS BAg-8a.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 84 | |
| 83 |
| Poisson's Ratio | 0.36 | |
| 0.36 |
| Shear Modulus, GPa | 31 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 150 | |
| 150 |
Thermal Properties
| Brazing Temperature, °C | 770 to 890 | |
| 720 to 870 |
| Latent Heat of Fusion, J/g | 140 | |
| 140 |
| Melting Completion (Liquidus), °C | 780 | |
| 770 |
| Melting Onset (Solidus), °C | 780 | |
| 770 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 290 |
| Thermal Expansion, µm/m-K | 19 | |
| 19 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.6 | |
| 4.6 |
| Stiffness to Weight: Bending, points | 14 | |
| 15 |
| Strength to Weight: Axial, points | 4.1 | |
| 4.2 |
| Strength to Weight: Bending, points | 6.2 | |
| 6.3 |
| Thermal Shock Resistance, points | 6.7 | |
| 6.7 |
Alloy Composition
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| Copper (Cu), % | 26.9 to 29 | |
| 26.4 to 28.8 |
| Lithium (Li), % | 0 | |
| 0.25 to 0.5 |
| Silver (Ag), % | 71 to 73 | |
| 71 to 73 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |