R30155 Cobalt vs. AWS E90C-B9
Both R30155 cobalt and AWS E90C-B9 are iron alloys. They have 42% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is R30155 cobalt and the bottom bar is AWS E90C-B9.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 190 |
| Elongation at Break, % | 34 | |
| 18 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 81 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 850 | |
| 710 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 270 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Conductivity, W/m-K | 12 | |
| 25 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 7.0 |
| Density, g/cm3 | 8.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 9.7 | |
| 2.6 |
| Embodied Energy, MJ/kg | 150 | |
| 37 |
| Embodied Water, L/kg | 300 | |
| 91 |
Common Calculations
| PREN (Pitting Resistance) | 37 | |
| 13 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 230 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
| 550 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 28 | |
| 25 |
| Strength to Weight: Bending, points | 24 | |
| 23 |
| Thermal Diffusivity, mm2/s | 3.2 | |
| 6.9 |
| Thermal Shock Resistance, points | 21 | |
| 20 |
Alloy Composition
Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 460
| Aluminum (Al), % | 0 | |
| 0 to 0.040 |
| Carbon (C), % | 0.080 to 0.16 | |
| 0.080 to 0.13 |
| Chromium (Cr), % | 20 to 22.5 | |
| 8.0 to 10.5 |
| Cobalt (Co), % | 18.5 to 21 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.2 |
| Iron (Fe), % | 24.3 to 36.2 | |
| 84.4 to 90.9 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 to 1.2 |
| Molybdenum (Mo), % | 2.5 to 3.5 | |
| 0.85 to 1.2 |
| Nickel (Ni), % | 19 to 21 | |
| 0 to 0.8 |
| Niobium (Nb), % | 0.75 to 1.3 | |
| 0.020 to 0.1 |
| Nitrogen (N), % | 0 to 0.2 | |
| 0.030 to 0.070 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |
| Tantalum (Ta), % | 0.75 to 1.3 | |
| 0 |
| Tungsten (W), % | 2.0 to 3.0 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.15 to 0.3 |
| Residuals, % | 0 | |
| 0 to 0.5 |