AWS BAg-34 vs. AWS BAg-37
Both AWS BAg-34 and AWS BAg-37 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common.
For each property being compared, the top bar is AWS BAg-34 and the bottom bar is AWS BAg-37.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 89 | |
| 94 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 34 | |
| 36 |
| Tensile Strength: Ultimate (UTS), MPa | 170 | |
| 180 |
Thermal Properties
| Brazing Temperature, °C | 680 to 840 | |
| 780 to 890 |
| Latent Heat of Fusion, J/g | 140 | |
| 150 |
| Melting Completion (Liquidus), °C | 720 | |
| 780 |
| Melting Onset (Solidus), °C | 650 | |
| 690 |
| Specific Heat Capacity, J/kg-K | 330 | |
| 350 |
| Thermal Expansion, µm/m-K | 21 | |
| 21 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 26 |
| Embodied Energy, MJ/kg | 600 | |
| 410 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.6 | |
| 6.1 |
| Stiffness to Weight: Bending, points | 17 | |
| 18 |
| Strength to Weight: Axial, points | 5.4 | |
| 5.9 |
| Strength to Weight: Bending, points | 7.7 | |
| 8.3 |
| Thermal Shock Resistance, points | 6.5 | |
| 6.6 |
Alloy Composition
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| Copper (Cu), % | 31 to 33 | |
| 39 to 41 |
| Silver (Ag), % | 37 to 39 | |
| 24 to 26 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 1.5 to 2.5 |
| Zinc (Zn), % | 26 to 30 | |
| 31 to 35 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |