R31538 Cobalt vs. Nickel 890
R31538 cobalt belongs to the cobalt alloys classification, while nickel 890 belongs to the nickel alloys. They have a modest 29% 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 (9, in this case) are not shown.
For each property being compared, the top bar is R31538 cobalt and the bottom bar is nickel 890.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 220 | |
200 |
Elongation at Break, % | 13 to 23 | |
39 |
Fatigue Strength, MPa | 310 to 480 | |
180 |
Poisson's Ratio | 0.29 | |
0.28 |
Shear Modulus, GPa | 86 | |
78 |
Tensile Strength: Ultimate (UTS), MPa | 1020 to 1360 | |
590 |
Tensile Strength: Yield (Proof), MPa | 580 to 930 | |
230 |
Thermal Properties
Latent Heat of Fusion, J/g | 320 | |
330 |
Melting Completion (Liquidus), °C | 1360 | |
1390 |
Melting Onset (Solidus), °C | 1290 | |
1340 |
Specific Heat Capacity, J/kg-K | 450 | |
480 |
Thermal Expansion, µm/m-K | 13 | |
14 |
Otherwise Unclassified Properties
Density, g/cm3 | 8.4 | |
8.1 |
Embodied Carbon, kg CO2/kg material | 8.1 | |
8.2 |
Embodied Energy, MJ/kg | 110 | |
120 |
Embodied Water, L/kg | 530 | |
250 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 200 | |
180 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 750 to 1920 | |
140 |
Stiffness to Weight: Axial, points | 15 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
24 |
Strength to Weight: Axial, points | 34 to 45 | |
20 |
Strength to Weight: Bending, points | 27 to 32 | |
19 |
Thermal Shock Resistance, points | 25 to 33 | |
15 |
Alloy Composition
Aluminum (Al), % | 0 | |
0.050 to 0.6 |
Carbon (C), % | 0.15 to 0.35 | |
0.060 to 0.14 |
Chromium (Cr), % | 26 to 30 | |
23.5 to 28.5 |
Cobalt (Co), % | 58.7 to 68.9 | |
0 |
Copper (Cu), % | 0 | |
0 to 0.75 |
Iron (Fe), % | 0 to 0.75 | |
17.3 to 33.9 |
Manganese (Mn), % | 0 to 1.0 | |
0 to 1.5 |
Molybdenum (Mo), % | 5.0 to 7.0 | |
1.0 to 2.0 |
Nickel (Ni), % | 0 to 1.0 | |
40 to 45 |
Niobium (Nb), % | 0 | |
0.2 to 1.0 |
Nitrogen (N), % | 0 to 0.25 | |
0 |
Silicon (Si), % | 0 to 1.0 | |
1.0 to 2.0 |
Sulfur (S), % | 0 | |
0 to 0.015 |
Tantalum (Ta), % | 0 | |
0.1 to 0.6 |
Titanium (Ti), % | 0 | |
0.15 to 0.6 |