AWS BCo-1 vs. AWS BVPd-1
AWS BCo-1 belongs to the cobalt alloys classification, while AWS BVPd-1 belongs to the otherwise unclassified metals. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. 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 BCo-1 and the bottom bar is AWS BVPd-1.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 150 |
| Poisson's Ratio | 0.3 | |
| 0.37 |
| Shear Modulus, GPa | 78 | |
| 56 |
| Tensile Strength: Ultimate (UTS), MPa | 700 | |
| 240 |
Thermal Properties
| Brazing Temperature, °C | 1150 to 1230 | |
| 1240 to 1250 |
| Latent Heat of Fusion, J/g | 420 | |
| 200 |
| Melting Completion (Liquidus), °C | 1150 | |
| 1240 |
| Melting Onset (Solidus), °C | 1120 | |
| 1230 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 310 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.1 | |
| 11 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 24 | |
| 16 |
| Strength to Weight: Axial, points | 24 | |
| 6.1 |
| Strength to Weight: Bending, points | 22 | |
| 7.9 |
| Thermal Shock Resistance, points | 21 | |
| 9.8 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.050 | |
| 0 |
| Boron (B), % | 0.7 to 0.9 | |
| 0 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.0010 |
| Carbon (C), % | 0.35 to 0.45 | |
| 0 to 0.0050 |
| Chromium (Cr), % | 18 to 20 | |
| 0 |
| Cobalt (Co), % | 46 to 54 | |
| 33.9 to 36 |
| Iron (Fe), % | 0 to 1.0 | |
| 0 |
| Lead (Pb), % | 0 | |
| 0 to 0.0020 |
| Nickel (Ni), % | 16 to 18 | |
| 0 to 0.060 |
| Palladium (Pd), % | 0 | |
| 64 to 66 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.0020 |
| Selenium (Se), % | 0 to 0.0050 | |
| 0 |
| Silicon (Si), % | 7.5 to 8.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 |
| Titanium (Ti), % | 0 to 0.050 | |
| 0 |
| Tungsten (W), % | 3.5 to 4.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.0010 |
| Zirconium (Zr), % | 0 to 0.050 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |