EN 1.5414 Steel vs. R30155 Cobalt
Both EN 1.5414 steel and R30155 cobalt are iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.5414 steel and the bottom bar is R30155 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 170 to 180 | |
| 220 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Elongation at Break, % | 22 | |
| 34 |
| Fatigue Strength, MPa | 250 to 270 | |
| 310 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 81 |
| Shear Strength, MPa | 350 to 370 | |
| 570 |
| Tensile Strength: Ultimate (UTS), MPa | 550 to 580 | |
| 850 |
| Tensile Strength: Yield (Proof), MPa | 350 to 380 | |
| 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1470 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 450 |
| Thermal Conductivity, W/m-K | 44 | |
| 12 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.6 | |
| 80 |
| Density, g/cm3 | 7.9 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 9.7 |
| Embodied Energy, MJ/kg | 21 | |
| 150 |
| Embodied Water, L/kg | 50 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 230 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 320 to 370 | |
| 370 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 19 to 20 | |
| 28 |
| Strength to Weight: Bending, points | 19 to 20 | |
| 24 |
| Thermal Diffusivity, mm2/s | 12 | |
| 3.2 |
| Thermal Shock Resistance, points | 16 to 17 | |
| 21 |
Alloy Composition
| Carbon (C), % | 0 to 0.2 | |
| 0.080 to 0.16 |
| Chromium (Cr), % | 0 to 0.3 | |
| 20 to 22.5 |
| Cobalt (Co), % | 0 | |
| 18.5 to 21 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Iron (Fe), % | 96.4 to 98.7 | |
| 24.3 to 36.2 |
| Manganese (Mn), % | 0.9 to 1.5 | |
| 1.0 to 2.0 |
| Molybdenum (Mo), % | 0.45 to 0.6 | |
| 2.5 to 3.5 |
| Nickel (Ni), % | 0 to 0.3 | |
| 19 to 21 |
| Niobium (Nb), % | 0 | |
| 0.75 to 1.3 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 to 0.2 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.030 |
| Tantalum (Ta), % | 0 | |
| 0.75 to 1.3 |
| Tungsten (W), % | 0 | |
| 2.0 to 3.0 |