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EN 2.4815 Cast Nickel vs. R31233 Cobalt

EN 2.4815 cast nickel belongs to the nickel alloys classification, while R31233 cobalt belongs to the cobalt alloys. They have a modest 29% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 2.4815 cast nickel and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 3.4
17
Fatigue Strength, MPa 89
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
85
Tensile Strength: Ultimate (UTS), MPa 460
1020
Tensile Strength: Yield (Proof), MPa 220
420

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1510
1350
Melting Onset (Solidus), °C 1450
1330
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.1

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 7.9
8.4
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 230
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
140
Resilience: Unit (Modulus of Resilience), kJ/m3 130
410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 15
33
Strength to Weight: Bending, points 16
26
Thermal Diffusivity, mm2/s 6.4
3.2
Thermal Shock Resistance, points 17
25

Alloy Composition

Boron (B), % 0
0 to 0.015
Carbon (C), % 0.35 to 0.65
0.020 to 0.1
Chromium (Cr), % 12 to 18
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Iron (Fe), % 9.8 to 28.7
1.0 to 5.0
Manganese (Mn), % 0 to 2.0
0.1 to 1.5
Molybdenum (Mo), % 0 to 1.0
4.0 to 6.0
Nickel (Ni), % 58 to 66
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0.050 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
1.0 to 3.0