AWS BAg-18 vs. AWS BAg-1a
Both AWS BAg-18 and AWS BAg-1a are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 66% of their average alloy composition in common.
For each property being compared, the top bar is AWS BAg-18 and the bottom bar is AWS BAg-1a.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 82 | |
| 77 |
| Poisson's Ratio | 0.36 | |
| 0.33 |
| Shear Modulus, GPa | 30 | |
| 29 |
| Tensile Strength: Ultimate (UTS), MPa | 170 | |
| 180 |
Thermal Properties
| Brazing Temperature, °C | 720 to 980 | |
| 640 to 760 |
| Latent Heat of Fusion, J/g | 130 | |
| 120 |
| Melting Completion (Liquidus), °C | 720 | |
| 640 |
| Melting Onset (Solidus), °C | 600 | |
| 630 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 280 |
| Thermal Expansion, µm/m-K | 19 | |
| 22 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.7 | |
| 9.3 |
| Embodied Carbon, kg CO2/kg material | 59 | |
| 48 |
| Embodied Energy, MJ/kg | 930 | |
| 760 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.7 | |
| 4.6 |
| Stiffness to Weight: Bending, points | 15 | |
| 15 |
| Strength to Weight: Axial, points | 4.9 | |
| 5.4 |
| Strength to Weight: Bending, points | 7.0 | |
| 7.6 |
| Thermal Shock Resistance, points | 7.7 | |
| 7.5 |
Alloy Composition
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| Cadmium (Cd), % | 0 | |
| 17 to 19 |
| Copper (Cu), % | 28.4 to 31.5 | |
| 14.5 to 16.5 |
| Silver (Ag), % | 59 to 61 | |
| 49 to 51 |
| Tin (Sn), % | 9.5 to 10.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 14.5 to 18.5 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |