EN 1.1151 Steel vs. G-CoCr28 Cobalt
EN 1.1151 steel belongs to the iron alloys classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.1151 steel and the bottom bar is G-CoCr28 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Elongation at Break, % | 21 to 26 | |
| 6.7 |
| Fatigue Strength, MPa | 180 to 240 | |
| 130 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 73 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 520 | |
| 560 |
| Tensile Strength: Yield (Proof), MPa | 240 to 340 | |
| 260 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 400 | |
| 1200 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1330 |
| Melting Onset (Solidus), °C | 1420 | |
| 1270 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 50 | |
| 8.5 |
| Thermal Expansion, µm/m-K | 12 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 100 |
| Density, g/cm3 | 7.8 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 6.2 |
| Embodied Energy, MJ/kg | 19 | |
| 84 |
| Embodied Water, L/kg | 47 | |
| 440 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 98 to 100 | |
| 31 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 310 | |
| 160 |
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 16 to 18 | |
| 19 |
| Strength to Weight: Bending, points | 17 to 18 | |
| 19 |
| Thermal Diffusivity, mm2/s | 13 | |
| 2.2 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 14 |
Alloy Composition
| Carbon (C), % | 0.17 to 0.24 | |
| 0.050 to 0.25 |
| Chromium (Cr), % | 0 to 0.4 | |
| 27 to 30 |
| Cobalt (Co), % | 0 | |
| 48 to 52 |
| Iron (Fe), % | 97.7 to 99.43 | |
| 9.7 to 24.5 |
| Manganese (Mn), % | 0.4 to 0.7 | |
| 0 to 1.5 |
| Molybdenum (Mo), % | 0 to 0.1 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 to 0.4 | |
| 0 to 4.0 |
| Niobium (Nb), % | 0 | |
| 0 to 0.5 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0.5 to 1.5 |
| Sulfur (S), % | 0 to 0.035 | |
| 0 to 0.030 |