EN 1.7335 Steel vs. R30016 Cobalt
EN 1.7335 steel belongs to the iron alloys classification, while R30016 cobalt belongs to the cobalt alloys. There are 28 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is EN 1.7335 steel and the bottom bar is R30016 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 220 |
| Elongation at Break, % | 21 to 22 | |
| 8.4 |
| Fatigue Strength, MPa | 200 to 220 | |
| 290 |
| Impact Strength: V-Notched Charpy, J | 31 to 35 | |
| 8.0 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 85 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 520 | |
| 1010 |
| Tensile Strength: Yield (Proof), MPa | 280 to 310 | |
| 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 320 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1360 |
| Melting Onset (Solidus), °C | 1420 | |
| 1270 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 450 |
| Thermal Conductivity, W/m-K | 44 | |
| 15 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.3 | |
| 1.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.4 | |
| 2.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 1.6 | |
| 7.7 |
| Embodied Energy, MJ/kg | 21 | |
| 110 |
| Embodied Water, L/kg | 52 | |
| 500 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 91 to 97 | |
| 72 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 210 to 260 | |
| 770 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 18 | |
| 33 |
| Strength to Weight: Bending, points | 18 | |
| 26 |
| Thermal Diffusivity, mm2/s | 12 | |
| 3.9 |
| Thermal Shock Resistance, points | 15 | |
| 24 |
Alloy Composition
| Carbon (C), % | 0.080 to 0.18 | |
| 0.9 to 1.4 |
| Chromium (Cr), % | 0.7 to 1.2 | |
| 28 to 32 |
| Cobalt (Co), % | 0 | |
| 49.6 to 66.9 |
| Copper (Cu), % | 0 to 0.3 | |
| 0 |
| Iron (Fe), % | 96.4 to 98.4 | |
| 0 to 3.0 |
| Manganese (Mn), % | 0.4 to 1.0 | |
| 0.5 to 2.0 |
| Molybdenum (Mo), % | 0.4 to 0.6 | |
| 0 to 1.5 |
| Nickel (Ni), % | 0 | |
| 0 to 3.0 |
| Nitrogen (N), % | 0 to 0.012 | |
| 0 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.35 | |
| 0.2 to 2.0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 |
| Tungsten (W), % | 0 | |
| 3.5 to 5.5 |