R30155 Cobalt vs. EN 1.0107 Steel
Both R30155 cobalt and EN 1.0107 steel are iron alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is R30155 cobalt and the bottom bar is EN 1.0107 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 220 | |
110 |
Elastic (Young's, Tensile) Modulus, GPa | 210 | |
190 |
Elongation at Break, % | 34 | |
29 |
Fatigue Strength, MPa | 310 | |
160 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 81 | |
73 |
Shear Strength, MPa | 570 | |
250 |
Tensile Strength: Ultimate (UTS), MPa | 850 | |
380 |
Tensile Strength: Yield (Proof), MPa | 390 | |
210 |
Thermal Properties
Latent Heat of Fusion, J/g | 300 | |
250 |
Maximum Temperature: Mechanical, °C | 1100 | |
400 |
Melting Completion (Liquidus), °C | 1470 | |
1460 |
Melting Onset (Solidus), °C | 1420 | |
1420 |
Specific Heat Capacity, J/kg-K | 450 | |
470 |
Thermal Conductivity, W/m-K | 12 | |
51 |
Thermal Expansion, µm/m-K | 14 | |
12 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 80 | |
2.1 |
Density, g/cm3 | 8.5 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 9.7 | |
1.5 |
Embodied Energy, MJ/kg | 150 | |
19 |
Embodied Water, L/kg | 300 | |
47 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 230 | |
95 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
110 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 23 | |
24 |
Strength to Weight: Axial, points | 28 | |
13 |
Strength to Weight: Bending, points | 24 | |
15 |
Thermal Diffusivity, mm2/s | 3.2 | |
14 |
Thermal Shock Resistance, points | 21 | |
12 |
Alloy Composition
Carbon (C), % | 0.080 to 0.16 | |
0 to 0.13 |
Chromium (Cr), % | 20 to 22.5 | |
0 to 0.3 |
Cobalt (Co), % | 18.5 to 21 | |
0 |
Copper (Cu), % | 0 | |
0 to 0.3 |
Iron (Fe), % | 24.3 to 36.2 | |
97.7 to 100 |
Manganese (Mn), % | 1.0 to 2.0 | |
0 to 0.7 |
Molybdenum (Mo), % | 2.5 to 3.5 | |
0 to 0.080 |
Nickel (Ni), % | 19 to 21 | |
0 to 0.3 |
Niobium (Nb), % | 0.75 to 1.3 | |
0 to 0.010 |
Nitrogen (N), % | 0 to 0.2 | |
0 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.025 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.35 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.020 |
Tantalum (Ta), % | 0.75 to 1.3 | |
0 |
Titanium (Ti), % | 0 | |
0 to 0.040 |
Tungsten (W), % | 2.0 to 3.0 | |
0 |
Vanadium (V), % | 0 | |
0 to 0.020 |