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R30003 Cobalt vs. EN 2.4654 Nickel

R30003 cobalt belongs to the cobalt alloys classification, while EN 2.4654 nickel belongs to the nickel alloys. They have 54% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30003 cobalt and the bottom bar is EN 2.4654 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 10 to 73
17
Fatigue Strength, MPa 320 to 560
460
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
77
Tensile Strength: Ultimate (UTS), MPa 970 to 1720
1250
Tensile Strength: Yield (Proof), MPa 510 to 1090
850

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1400
1390
Melting Onset (Solidus), °C 1440
1330
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
13
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 95
75
Density, g/cm3 8.4
8.4
Embodied Carbon, kg CO2/kg material 8.0
10
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 400
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 2790
1810
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 32 to 57
42
Strength to Weight: Bending, points 26 to 38
31
Thermal Diffusivity, mm2/s 3.3
3.3
Thermal Shock Resistance, points 26 to 45
37

Alloy Composition

Aluminum (Al), % 0
1.2 to 1.6
Boron (B), % 0 to 0.1
0.0030 to 0.010
Carbon (C), % 0 to 0.15
0.020 to 0.1
Chromium (Cr), % 19 to 21
18 to 21
Cobalt (Co), % 39 to 41
12 to 15
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 10 to 20.5
0 to 2.0
Manganese (Mn), % 1.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 6.0 to 8.0
3.5 to 5.0
Nickel (Ni), % 14 to 16
50.6 to 62.5
Phosphorus (P), % 0 to 0.015
0 to 0.015
Silicon (Si), % 0 to 1.2
0 to 0.15
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
2.8 to 3.3
Zirconium (Zr), % 0
0.020 to 0.080