R60705 Alloy vs. R30003 Cobalt
R60705 alloy belongs to the otherwise unclassified metals classification, while R30003 cobalt belongs to the cobalt alloys. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is R60705 alloy and the bottom bar is R30003 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 210 |
| Elongation at Break, % | 18 | |
| 10 to 73 |
| Fatigue Strength, MPa | 290 | |
| 320 to 560 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 37 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 970 to 1720 |
| Tensile Strength: Yield (Proof), MPa | 430 | |
| 510 to 1090 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 450 |
| Thermal Conductivity, W/m-K | 17 | |
| 13 |
| Thermal Expansion, µm/m-K | 6.3 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.7 | |
| 8.4 |
| Embodied Water, L/kg | 450 | |
| 400 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 950 | |
| 600 to 2790 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 22 | |
| 32 to 57 |
| Strength to Weight: Bending, points | 22 | |
| 26 to 38 |
| Thermal Diffusivity, mm2/s | 9.5 | |
| 3.3 |
| Thermal Shock Resistance, points | 63 | |
| 26 to 45 |
Alloy Composition
| Boron (B), % | 0 | |
| 0 to 0.1 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 to 0.2 | |
| 19 to 21 |
| Cobalt (Co), % | 0 | |
| 39 to 41 |
| Hafnium (Hf), % | 0 to 4.5 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0050 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 10 to 20.5 |
| Manganese (Mn), % | 0 | |
| 1.5 to 2.5 |
| Molybdenum (Mo), % | 0 | |
| 6.0 to 8.0 |
| Nickel (Ni), % | 0 | |
| 14 to 16 |
| Niobium (Nb), % | 2.0 to 3.0 | |
| 0 |
| Nitrogen (N), % | 0 to 0.025 | |
| 0 |
| Oxygen (O), % | 0 to 0.18 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 | |
| 0 to 1.2 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Zirconium (Zr), % | 91 to 98 | |
| 0 |