R30003 Cobalt vs. ASTM B817 Type I
R30003 cobalt belongs to the cobalt alloys classification, while ASTM B817 type I belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is R30003 cobalt and the bottom bar is ASTM B817 type I.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 100 |
| Elongation at Break, % | 10 to 73 | |
| 4.0 to 13 |
| Fatigue Strength, MPa | 320 to 560 | |
| 360 to 520 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 83 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 970 to 1720 | |
| 770 to 960 |
| Tensile Strength: Yield (Proof), MPa | 510 to 1090 | |
| 700 to 860 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 410 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1600 |
| Melting Onset (Solidus), °C | 1440 | |
| 1550 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 560 |
| Thermal Conductivity, W/m-K | 13 | |
| 7.1 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.6 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
| 1.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 95 | |
| 36 |
| Density, g/cm3 | 8.4 | |
| 4.4 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 38 |
| Embodied Energy, MJ/kg | 110 | |
| 610 |
| Embodied Water, L/kg | 400 | |
| 200 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 600 to 2790 | |
| 2310 to 3540 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 35 |
| Strength to Weight: Axial, points | 32 to 57 | |
| 48 to 60 |
| Strength to Weight: Bending, points | 26 to 38 | |
| 42 to 49 |
| Thermal Diffusivity, mm2/s | 3.3 | |
| 2.9 |
| Thermal Shock Resistance, points | 26 to 45 | |
| 54 to 68 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 5.5 to 6.8 |
| Boron (B), % | 0 to 0.1 | |
| 0 |
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.1 |
| Chlorine (Cl), % | 0 | |
| 0 to 0.2 |
| Chromium (Cr), % | 19 to 21 | |
| 0 |
| Cobalt (Co), % | 39 to 41 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 10 to 20.5 | |
| 0 to 0.4 |
| Manganese (Mn), % | 1.5 to 2.5 | |
| 0 |
| Molybdenum (Mo), % | 6.0 to 8.0 | |
| 0 |
| Nickel (Ni), % | 14 to 16 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.040 |
| Oxygen (O), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 1.2 | |
| 0 to 0.1 |
| Sodium (Na), % | 0 | |
| 0 to 0.2 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 87 to 91 |
| Vanadium (V), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |