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R30016 Cobalt vs. EN 2.4878 Nickel

R30016 cobalt belongs to the cobalt alloys classification, while EN 2.4878 nickel belongs to the nickel alloys. They have 47% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is EN 2.4878 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 8.4
13 to 17
Fatigue Strength, MPa 290
400 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
78
Tensile Strength: Ultimate (UTS), MPa 1010
1210 to 1250
Tensile Strength: Yield (Proof), MPa 580
740 to 780

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1360
1370
Melting Onset (Solidus), °C 1270
1320
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.3
Embodied Carbon, kg CO2/kg material 7.7
10
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 500
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
150 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 770
1370 to 1540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
41 to 42
Strength to Weight: Bending, points 26
31
Thermal Diffusivity, mm2/s 3.9
2.8
Thermal Shock Resistance, points 24
37 to 39

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0
0.010 to 0.015
Carbon (C), % 0.9 to 1.4
0.030 to 0.070
Chromium (Cr), % 28 to 32
23 to 25
Cobalt (Co), % 49.6 to 66.9
19 to 21
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 3.0
0 to 1.0
Manganese (Mn), % 0.5 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 1.5
1.0 to 2.0
Nickel (Ni), % 0 to 3.0
43.6 to 52.2
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0.2 to 2.0
0 to 0.5
Sulfur (S), % 0
0 to 0.0070
Tantalum (Ta), % 0
0 to 0.050
Titanium (Ti), % 0
2.8 to 3.2
Tungsten (W), % 3.5 to 5.5
0
Zirconium (Zr), % 0
0.030 to 0.070