R30003 Cobalt vs. ASTM A514 Steel
R30003 cobalt belongs to the cobalt alloys classification, while ASTM A514 steel belongs to the iron 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 R30003 cobalt and the bottom bar is ASTM A514 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 190 |
| Elongation at Break, % | 10 to 73 | |
| 18 to 21 |
| Fatigue Strength, MPa | 320 to 560 | |
| 470 to 540 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 83 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1720 | |
| 790 to 830 |
| Tensile Strength: Yield (Proof), MPa | 510 to 1090 | |
| 690 to 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 250 to 260 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1460 |
| Melting Onset (Solidus), °C | 1440 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 470 |
| Thermal Conductivity, W/m-K | 13 | |
| 37 to 51 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 7.2 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
| 8.3 to 8.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 95 | |
| 2.3 to 3.8 |
| Density, g/cm3 | 8.4 | |
| 7.8 to 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 1.6 to 1.8 |
| Embodied Energy, MJ/kg | 110 | |
| 21 to 25 |
| Embodied Water, L/kg | 400 | |
| 48 to 57 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 600 to 2790 | |
| 1280 to 1590 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 32 to 57 | |
| 28 to 29 |
| Strength to Weight: Bending, points | 26 to 38 | |
| 24 to 25 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 10 to 14 |
| Thermal Shock Resistance, points | 26 to 45 | |
| 23 to 24 |