R30016 Cobalt vs. AWS E385
R30016 cobalt belongs to the cobalt alloys classification, while AWS E385 belongs to the iron alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 R30016 cobalt and the bottom bar is AWS E385.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 220 | |
200 |
Elongation at Break, % | 8.4 | |
34 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 85 | |
79 |
Tensile Strength: Ultimate (UTS), MPa | 1010 | |
580 |
Thermal Properties
Latent Heat of Fusion, J/g | 320 | |
300 |
Melting Completion (Liquidus), °C | 1360 | |
1440 |
Melting Onset (Solidus), °C | 1270 | |
1390 |
Specific Heat Capacity, J/kg-K | 450 | |
460 |
Thermal Conductivity, W/m-K | 15 | |
14 |
Thermal Expansion, µm/m-K | 14 | |
14 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 1.9 | |
1.7 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
1.9 |
Otherwise Unclassified Properties
Density, g/cm3 | 8.5 | |
8.1 |
Embodied Carbon, kg CO2/kg material | 7.7 | |
5.8 |
Embodied Energy, MJ/kg | 110 | |
79 |
Embodied Water, L/kg | 500 | |
200 |
Common Calculations
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 33 | |
20 |
Strength to Weight: Bending, points | 26 | |
19 |
Thermal Diffusivity, mm2/s | 3.9 | |
3.6 |
Thermal Shock Resistance, points | 24 | |
15 |
Alloy Composition
Carbon (C), % | 0.9 to 1.4 | |
0 to 0.030 |
Chromium (Cr), % | 28 to 32 | |
19.5 to 21.5 |
Cobalt (Co), % | 49.6 to 66.9 | |
0 |
Copper (Cu), % | 0 | |
1.2 to 2.0 |
Iron (Fe), % | 0 to 3.0 | |
41.8 to 50.1 |
Manganese (Mn), % | 0.5 to 2.0 | |
1.0 to 2.5 |
Molybdenum (Mo), % | 0 to 1.5 | |
4.2 to 5.2 |
Nickel (Ni), % | 0 to 3.0 | |
24 to 26 |
Phosphorus (P), % | 0 | |
0 to 0.030 |
Silicon (Si), % | 0.2 to 2.0 | |
0 to 0.9 |
Sulfur (S), % | 0 | |
0 to 0.020 |
Tungsten (W), % | 3.5 to 5.5 | |
0 |