AWS BVAu-7 vs. AWS BCo-1
AWS BVAu-7 belongs to the otherwise unclassified metals classification, while AWS BCo-1 belongs to the cobalt alloys. There are 16 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is AWS BVAu-7 and the bottom bar is AWS BCo-1.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 130 | |
| 200 |
| Poisson's Ratio | 0.38 | |
| 0.3 |
| Shear Modulus, GPa | 45 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 200 | |
| 700 |
Thermal Properties
| Brazing Temperature, °C | 1120 to 1150 | |
| 1150 to 1230 |
| Latent Heat of Fusion, J/g | 140 | |
| 420 |
| Melting Completion (Liquidus), °C | 1120 | |
| 1150 |
| Melting Onset (Solidus), °C | 1100 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 240 | |
| 480 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 15 | |
| 8.1 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.7 | |
| 14 |
| Stiffness to Weight: Bending, points | 11 | |
| 24 |
| Strength to Weight: Axial, points | 3.7 | |
| 24 |
| Strength to Weight: Bending, points | 5.1 | |
| 22 |
| Thermal Shock Resistance, points | 8.9 | |
| 21 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0 to 0.050 |
| Boron (B), % | 0 | |
| 0.7 to 0.9 |
| Cadmium (Cd), % | 0 to 0.0010 | |
| 0 |
| Carbon (C), % | 0 to 0.0050 | |
| 0.35 to 0.45 |
| Chromium (Cr), % | 0 | |
| 18 to 20 |
| Cobalt (Co), % | 0 to 0.060 | |
| 46 to 54 |
| Gold (Au), % | 49.5 to 50.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 1.0 |
| Lead (Pb), % | 0 to 0.0020 | |
| 0 |
| Nickel (Ni), % | 24.5 to 25.5 | |
| 16 to 18 |
| Palladium (Pd), % | 23.9 to 26 | |
| 0 |
| Phosphorus (P), % | 0 to 0.0020 | |
| 0 to 0.020 |
| Selenium (Se), % | 0 | |
| 0 to 0.0050 |
| Silicon (Si), % | 0 | |
| 7.5 to 8.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.020 |
| Titanium (Ti), % | 0 | |
| 0 to 0.050 |
| Tungsten (W), % | 0 | |
| 3.5 to 4.5 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 | |
| 0 to 0.5 |