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R30016 Cobalt vs. EN 2.4952 Nickel

R30016 cobalt belongs to the cobalt alloys classification, while EN 2.4952 nickel belongs to the nickel alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is EN 2.4952 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 8.4
17
Fatigue Strength, MPa 290
370
Impact Strength: V-Notched Charpy, J 8.0
22
Poisson's Ratio 0.28
0.29
Reduction in Area, % 8.0
14
Shear Modulus, GPa 85
74
Tensile Strength: Ultimate (UTS), MPa 1010
1150
Tensile Strength: Yield (Proof), MPa 580
670

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1360
1350
Melting Onset (Solidus), °C 1270
1300
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.5

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.3
Embodied Carbon, kg CO2/kg material 7.7
9.8
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 500
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
170
Resilience: Unit (Modulus of Resilience), kJ/m3 770
1180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 33
38
Strength to Weight: Bending, points 26
29
Thermal Diffusivity, mm2/s 3.9
3.1
Thermal Shock Resistance, points 24
33

Alloy Composition

Aluminum (Al), % 0
1.0 to 1.8
Boron (B), % 0
0 to 0.0080
Carbon (C), % 0.9 to 1.4
0.040 to 0.1
Chromium (Cr), % 28 to 32
18 to 21
Cobalt (Co), % 49.6 to 66.9
0 to 1.0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 3.0
0 to 1.5
Manganese (Mn), % 0.5 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
65 to 79.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.2 to 2.0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
1.8 to 2.7
Tungsten (W), % 3.5 to 5.5
0