AWS BAg-7 vs. R30035 Cobalt
AWS BAg-7 belongs to the otherwise unclassified metals classification, while R30035 cobalt belongs to the cobalt alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is AWS BAg-7 and the bottom bar is R30035 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 83 | |
| 220 to 230 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 31 | |
| 84 to 89 |
| Tensile Strength: Ultimate (UTS), MPa | 150 | |
| 900 to 1900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 130 | |
| 320 |
| Melting Completion (Liquidus), °C | 650 | |
| 1440 |
| Melting Onset (Solidus), °C | 620 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 290 | |
| 440 |
| Thermal Expansion, µm/m-K | 20 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 9.3 | |
| 8.7 |
| Embodied Carbon, kg CO2/kg material | 55 | |
| 10 |
| Embodied Energy, MJ/kg | 860 | |
| 140 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.9 | |
| 14 to 15 |
| Stiffness to Weight: Bending, points | 16 | |
| 23 to 24 |
| Strength to Weight: Axial, points | 4.5 | |
| 29 to 61 |
| Strength to Weight: Bending, points | 6.7 | |
| 24 to 39 |
| Thermal Shock Resistance, points | 6.4 | |
| 23 to 46 |
Alloy Composition
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| Boron (B), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0 | |
| 0 to 0.025 |
| Chromium (Cr), % | 0 | |
| 19 to 21 |
| Cobalt (Co), % | 0 | |
| 29.1 to 39 |
| Copper (Cu), % | 21 to 23 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 1.0 |
| Manganese (Mn), % | 0 | |
| 0 to 0.15 |
| Molybdenum (Mo), % | 0 | |
| 9.0 to 10.5 |
| Nickel (Ni), % | 0 | |
| 33 to 37 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 | |
| 0 to 0.15 |
| Silver (Ag), % | 55 to 57 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Tin (Sn), % | 4.5 to 5.5 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 1.0 |
| Zinc (Zn), % | 15 to 19 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |