R30155 Cobalt vs. AISI 410Cb Stainless Steel
Both R30155 cobalt and AISI 410Cb stainless steel are iron alloys. They have 44% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is R30155 cobalt and the bottom bar is AISI 410Cb stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 220 | |
| 200 to 270 |
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 190 |
| Elongation at Break, % | 34 | |
| 15 |
| Fatigue Strength, MPa | 310 | |
| 180 to 460 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Reduction in Area, % | 34 | |
| 50 to 51 |
| Shear Modulus, GPa | 81 | |
| 76 |
| Shear Strength, MPa | 570 | |
| 340 to 590 |
| Tensile Strength: Ultimate (UTS), MPa | 850 | |
| 550 to 960 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 310 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 270 |
| Maximum Temperature: Corrosion, °C | 570 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 730 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1450 |
| Melting Onset (Solidus), °C | 1420 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 480 |
| Thermal Conductivity, W/m-K | 12 | |
| 27 |
| Thermal Expansion, µm/m-K | 14 | |
| 10 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 7.5 |
| Density, g/cm3 | 8.5 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 9.7 | |
| 2.0 |
| Embodied Energy, MJ/kg | 150 | |
| 29 |
| Embodied Water, L/kg | 300 | |
| 97 |
Common Calculations
| PREN (Pitting Resistance) | 37 | |
| 12 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 230 | |
| 70 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
| 240 to 1600 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 28 | |
| 20 to 35 |
| Strength to Weight: Bending, points | 24 | |
| 19 to 28 |
| Thermal Diffusivity, mm2/s | 3.2 | |
| 7.3 |
| Thermal Shock Resistance, points | 21 | |
| 20 to 35 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.16 | |
| 0 to 0.18 |
| Chromium (Cr), % | 20 to 22.5 | |
| 11 to 13 |
| Cobalt (Co), % | 18.5 to 21 | |
| 0 |
| Iron (Fe), % | 24.3 to 36.2 | |
| 84.5 to 89 |
| Manganese (Mn), % | 1.0 to 2.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 2.5 to 3.5 | |
| 0 |
| Nickel (Ni), % | 19 to 21 | |
| 0 |
| Niobium (Nb), % | 0.75 to 1.3 | |
| 0.050 to 0.3 |
| Nitrogen (N), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Tantalum (Ta), % | 0.75 to 1.3 | |
| 0 |
| Tungsten (W), % | 2.0 to 3.0 | |
| 0 |