R30075 Cobalt vs. EN 1.0411 Steel
R30075 cobalt belongs to the cobalt alloys classification, while EN 1.0411 steel belongs to the iron alloys. There are 28 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 R30075 cobalt and the bottom bar is EN 1.0411 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 210 to 250 | |
190 |
Elongation at Break, % | 12 | |
12 to 26 |
Fatigue Strength, MPa | 250 to 840 | |
200 to 320 |
Poisson's Ratio | 0.29 | |
0.29 |
Reduction in Area, % | 20 | |
60 to 74 |
Shear Modulus, GPa | 82 to 98 | |
73 |
Tensile Strength: Ultimate (UTS), MPa | 780 to 1280 | |
420 to 570 |
Tensile Strength: Yield (Proof), MPa | 480 to 840 | |
270 to 480 |
Thermal Properties
Latent Heat of Fusion, J/g | 320 | |
250 |
Melting Completion (Liquidus), °C | 1360 | |
1460 |
Melting Onset (Solidus), °C | 1290 | |
1420 |
Specific Heat Capacity, J/kg-K | 450 | |
470 |
Thermal Conductivity, W/m-K | 13 | |
52 |
Thermal Expansion, µm/m-K | 12 | |
12 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.0 | |
7.0 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
8.0 |
Otherwise Unclassified Properties
Density, g/cm3 | 8.4 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 8.1 | |
1.4 |
Embodied Energy, MJ/kg | 110 | |
18 |
Embodied Water, L/kg | 530 | |
47 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 84 to 140 | |
43 to 140 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 1410 | |
190 to 610 |
Stiffness to Weight: Axial, points | 14 to 17 | |
13 |
Stiffness to Weight: Bending, points | 24 to 25 | |
24 |
Strength to Weight: Axial, points | 26 to 42 | |
15 to 20 |
Strength to Weight: Bending, points | 22 to 31 | |
16 to 20 |
Thermal Diffusivity, mm2/s | 3.5 | |
14 |
Thermal Shock Resistance, points | 21 to 29 | |
13 to 18 |
Alloy Composition
Aluminum (Al), % | 0 to 0.1 | |
0.020 to 0.060 |
Boron (B), % | 0 to 0.010 | |
0 |
Carbon (C), % | 0 to 0.35 | |
0.18 to 0.22 |
Chromium (Cr), % | 27 to 30 | |
0 |
Cobalt (Co), % | 58.7 to 68 | |
0 |
Iron (Fe), % | 0 to 0.75 | |
98.7 to 99.1 |
Manganese (Mn), % | 0 to 1.0 | |
0.7 to 0.9 |
Molybdenum (Mo), % | 5.0 to 7.0 | |
0 |
Nickel (Ni), % | 0 to 0.5 | |
0 |
Nitrogen (N), % | 0 to 0.25 | |
0 |
Phosphorus (P), % | 0 to 0.020 | |
0 to 0.025 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.1 |
Sulfur (S), % | 0 to 0.010 | |
0 to 0.025 |
Titanium (Ti), % | 0 to 0.1 | |
0 |
Tungsten (W), % | 0 to 0.2 | |
0 |