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R30075 Cobalt vs. EN 2.4608 Nickel

R30075 cobalt belongs to the cobalt alloys classification, while EN 2.4608 nickel belongs to the nickel alloys. They have a modest 33% 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 (4, in this case) are not shown.

For each property being compared, the top bar is R30075 cobalt and the bottom bar is EN 2.4608 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
210
Elongation at Break, % 12
34
Fatigue Strength, MPa 250 to 840
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 82 to 98
81
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
620
Tensile Strength: Yield (Proof), MPa 480 to 840
270

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.6

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.5
Embodied Carbon, kg CO2/kg material 8.1
8.4
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 530
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 140
170
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1410
180
Stiffness to Weight: Axial, points 14 to 17
14
Stiffness to Weight: Bending, points 24 to 25
23
Strength to Weight: Axial, points 26 to 42
20
Strength to Weight: Bending, points 22 to 31
19
Thermal Diffusivity, mm2/s 3.5
2.9
Thermal Shock Resistance, points 21 to 29
16

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0.030 to 0.080
Chromium (Cr), % 27 to 30
24 to 26
Cobalt (Co), % 58.7 to 68
2.5 to 4.0
Iron (Fe), % 0 to 0.75
11.4 to 23.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 5.0 to 7.0
2.5 to 4.0
Nickel (Ni), % 0 to 0.5
44 to 47
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.0
0.7 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0 to 0.2
2.5 to 4.0