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EN 2.4879 Cast Nickel vs. R30006 Cobalt

EN 2.4879 cast nickel belongs to the nickel alloys classification, while R30006 cobalt belongs to the cobalt alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 2.4879 cast nickel and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 3.4
1.0
Fatigue Strength, MPa 110
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
85
Tensile Strength: Ultimate (UTS), MPa 490
900
Tensile Strength: Yield (Proof), MPa 270
540

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1290
Specific Heat Capacity, J/kg-K 460
450
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.6
Embodied Carbon, kg CO2/kg material 8.3
7.8
Embodied Energy, MJ/kg 120
110
Embodied Water, L/kg 270
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 180
670
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 16
29
Strength to Weight: Bending, points 16
24
Thermal Diffusivity, mm2/s 2.8
3.9
Thermal Shock Resistance, points 13
26

Alloy Composition

Carbon (C), % 0.35 to 0.55
0.9 to 1.4
Chromium (Cr), % 27 to 30
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Iron (Fe), % 9.4 to 20.7
0 to 3.0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0 to 1.0
Nickel (Ni), % 47 to 50
0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 4.0 to 6.0
4.0 to 6.0