AWS BAg-9 vs. C55181 Copper
AWS BAg-9 belongs to the otherwise unclassified metals classification, while C55181 copper belongs to the copper alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is AWS BAg-9 and the bottom bar is C55181 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 82 | |
| 110 |
| Poisson's Ratio | 0.35 | |
| 0.34 |
| Shear Modulus, GPa | 31 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 140 | |
| 200 |
Thermal Properties
| Brazing Temperature, °C | 720 to 840 | |
| 730 to 840 |
| Latent Heat of Fusion, J/g | 130 | |
| 190 |
| Melting Completion (Liquidus), °C | 720 | |
| 790 |
| Melting Onset (Solidus), °C | 670 | |
| 710 |
| Specific Heat Capacity, J/kg-K | 290 | |
| 410 |
| Thermal Expansion, µm/m-K | 20 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.6 | |
| 8.5 |
| Embodied Energy, MJ/kg | 980 | |
| 38 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.8 | |
| 7.0 |
| Stiffness to Weight: Bending, points | 15 | |
| 19 |
| Strength to Weight: Axial, points | 4.1 | |
| 6.5 |
| Strength to Weight: Bending, points | 6.3 | |
| 8.9 |
| Thermal Shock Resistance, points | 6.0 | |
| 8.2 |
Alloy Composition
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| Copper (Cu), % | 19 to 21 | |
| 92.4 to 93 |
| Phosphorus (P), % | 0 | |
| 7.0 to 7.5 |
| Silver (Ag), % | 64 to 66 | |
| 0 |
| Zinc (Zn), % | 13 to 17 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |