AWS BCo-1 vs. AISI 316 Stainless Steel
AWS BCo-1 belongs to the cobalt alloys classification, while AISI 316 stainless steel belongs to the iron alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.
For each property being compared, the top bar is AWS BCo-1 and the bottom bar is AISI 316 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Poisson's Ratio | 0.3 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 78 |
| Tensile Strength: Ultimate (UTS), MPa | 700 | |
| 520 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 290 |
| Melting Completion (Liquidus), °C | 1150 | |
| 1400 |
| Melting Onset (Solidus), °C | 1120 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 12 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.1 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 3.9 |
| Embodied Energy, MJ/kg | 110 | |
| 53 |
| Embodied Water, L/kg | 430 | |
| 150 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 24 | |
| 18 to 41 |
| Strength to Weight: Bending, points | 22 | |
| 18 to 31 |
| Thermal Shock Resistance, points | 21 | |
| 11 to 26 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.050 | |
| 0 |
| Boron (B), % | 0.7 to 0.9 | |
| 0 |
| Carbon (C), % | 0.35 to 0.45 | |
| 0 to 0.080 |
| Chromium (Cr), % | 18 to 20 | |
| 16 to 18 |
| Cobalt (Co), % | 46 to 54 | |
| 0 |
| Iron (Fe), % | 0 to 1.0 | |
| 62 to 72 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 16 to 18 | |
| 10 to 14 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.045 |
| Selenium (Se), % | 0 to 0.0050 | |
| 0 |
| Silicon (Si), % | 7.5 to 8.5 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.050 | |
| 0 |
| Tungsten (W), % | 3.5 to 4.5 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.050 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |