AWS BAg-10 vs. AWS BAu-4
Both AWS BAg-10 and AWS BAu-4 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition.
For each property being compared, the top bar is AWS BAg-10 and the bottom bar is AWS BAu-4.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 82 | |
| 110 |
| Poisson's Ratio | 0.35 | |
| 0.4 |
| Shear Modulus, GPa | 30 | |
| 41 |
| Tensile Strength: Ultimate (UTS), MPa | 140 | |
| 200 |
Thermal Properties
| Brazing Temperature, °C | 740 to 970 | |
| 950 to 1000 |
| Latent Heat of Fusion, J/g | 130 | |
| 100 |
| Melting Completion (Liquidus), °C | 740 | |
| 950 |
| Melting Onset (Solidus), °C | 690 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 190 |
| Thermal Expansion, µm/m-K | 20 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.8 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.6 | |
| 3.6 |
| Stiffness to Weight: Bending, points | 15 | |
| 9.3 |
| Strength to Weight: Axial, points | 4.0 | |
| 3.2 |
| Strength to Weight: Bending, points | 6.1 | |
| 4.4 |
| Thermal Shock Resistance, points | 6.2 | |
| 9.2 |
Alloy Composition
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| Copper (Cu), % | 19 to 21 | |
| 0 |
| Gold (Au), % | 0 | |
| 81.5 to 82.5 |
| Nickel (Ni), % | 0 | |
| 17.4 to 18.5 |
| Silver (Ag), % | 69 to 71 | |
| 0 |
| Zinc (Zn), % | 8.0 to 12 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |