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R30006 Cobalt vs. EN 2.4878 Nickel

R30006 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 (8, in this case) are not shown.

For each property being compared, the top bar is R30006 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, % 1.0
13 to 17
Fatigue Strength, MPa 260
400 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
78
Tensile Strength: Ultimate (UTS), MPa 900
1210 to 1250
Tensile Strength: Yield (Proof), MPa 540
740 to 780

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Melting Completion (Liquidus), °C 1400
1370
Melting Onset (Solidus), °C 1290
1320
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.3
Embodied Carbon, kg CO2/kg material 7.8
10
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 500
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
150 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 670
1370 to 1540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 29
41 to 42
Strength to Weight: Bending, points 24
31
Thermal Diffusivity, mm2/s 3.9
2.8
Thermal Shock Resistance, points 26
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), % 27 to 32
23 to 25
Cobalt (Co), % 48.6 to 68.1
19 to 21
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 3.0
0 to 1.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0 to 1.0
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 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), % 4.0 to 6.0
0
Zirconium (Zr), % 0
0.030 to 0.070