Grade 200 Maraging Steel vs. R30075 Cobalt
Grade 200 maraging steel belongs to the iron alloys classification, while R30075 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is grade 200 maraging steel and the bottom bar is R30075 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 to 250 |
| Elongation at Break, % | 9.1 to 18 | |
| 12 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 74 | |
| 82 to 98 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1500 | |
| 780 to 1280 |
| Tensile Strength: Yield (Proof), MPa | 690 to 1490 | |
| 480 to 840 |
Thermal Properties
| Latent Heat of Fusion, J/g | 260 | |
| 320 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1360 |
| Melting Onset (Solidus), °C | 1420 | |
| 1290 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 450 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 4.5 | |
| 8.1 |
| Embodied Energy, MJ/kg | 59 | |
| 110 |
| Embodied Water, L/kg | 140 | |
| 530 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 84 to 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1240 to 5740 | |
| 560 to 1410 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 to 17 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 to 25 |
| Strength to Weight: Axial, points | 33 to 51 | |
| 26 to 42 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 22 to 31 |
| Thermal Shock Resistance, points | 29 to 45 | |
| 21 to 29 |
Alloy Composition
| Aluminum (Al), % | 0.050 to 0.15 | |
| 0 to 0.1 |
| Boron (B), % | 0 to 0.0030 | |
| 0 to 0.010 |
| Calcium (Ca), % | 0 to 0.050 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.35 |
| Chromium (Cr), % | 0 | |
| 27 to 30 |
| Cobalt (Co), % | 8.0 to 9.0 | |
| 58.7 to 68 |
| Iron (Fe), % | 67.8 to 71.8 | |
| 0 to 0.75 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 3.0 to 3.5 | |
| 5.0 to 7.0 |
| Nickel (Ni), % | 17 to 19 | |
| 0 to 0.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.25 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0.15 to 0.25 | |
| 0 to 0.1 |
| Tungsten (W), % | 0 | |
| 0 to 0.2 |
| Zirconium (Zr), % | 0 to 0.020 | |
| 0 |