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R30035 Cobalt vs. EN 2.4680 Cast Nickel

R30035 cobalt belongs to the cobalt alloys classification, while EN 2.4680 cast nickel belongs to the nickel alloys. They have 56% of their average alloy composition in common. There are 26 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 R30035 cobalt and the bottom bar is EN 2.4680 cast nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220 to 230
210
Elongation at Break, % 9.0 to 46
9.1
Fatigue Strength, MPa 170 to 740
120
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 84 to 89
84
Tensile Strength: Ultimate (UTS), MPa 900 to 1900
600
Tensile Strength: Yield (Proof), MPa 300 to 1650
260

Thermal Properties

Latent Heat of Fusion, J/g 320
350
Melting Completion (Liquidus), °C 1440
1360
Melting Onset (Solidus), °C 1320
1320
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
14
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 100
60
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 10
9.1
Embodied Energy, MJ/kg 140
130
Embodied Water, L/kg 410
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 320
45
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 5920
160
Stiffness to Weight: Axial, points 14 to 15
15
Stiffness to Weight: Bending, points 23 to 24
25
Strength to Weight: Axial, points 29 to 61
21
Strength to Weight: Bending, points 24 to 39
20
Thermal Diffusivity, mm2/s 3.0
3.7
Thermal Shock Resistance, points 23 to 46
14

Alloy Composition

Boron (B), % 0 to 0.015
0
Carbon (C), % 0 to 0.025
0 to 0.1
Chromium (Cr), % 19 to 21
48 to 52
Cobalt (Co), % 29.1 to 39
0
Iron (Fe), % 0 to 1.0
0 to 1.0
Manganese (Mn), % 0 to 0.15
0 to 0.5
Molybdenum (Mo), % 9.0 to 10.5
0 to 0.5
Nickel (Ni), % 33 to 37
42.9 to 51
Niobium (Nb), % 0
1.0 to 1.8
Nitrogen (N), % 0
0 to 0.16
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0 to 1.0
0