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EN 2.4878 Nickel vs. R30012 Cobalt

EN 2.4878 nickel belongs to the nickel alloys classification, while R30012 cobalt belongs to the cobalt 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 (7, in this case) are not shown.

For each property being compared, the top bar is EN 2.4878 nickel and the bottom bar is R30012 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 13 to 17
1.0
Fatigue Strength, MPa 400 to 410
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 78
86
Tensile Strength: Ultimate (UTS), MPa 1210 to 1250
830
Tensile Strength: Yield (Proof), MPa 740 to 780
650

Thermal Properties

Latent Heat of Fusion, J/g 330
320
Melting Completion (Liquidus), °C 1370
1470
Melting Onset (Solidus), °C 1320
1280
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 8.3
8.8
Embodied Carbon, kg CO2/kg material 10
8.3
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 370
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 180
7.7
Resilience: Unit (Modulus of Resilience), kJ/m3 1370 to 1540
960
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 41 to 42
26
Strength to Weight: Bending, points 31
22
Thermal Diffusivity, mm2/s 2.8
3.8
Thermal Shock Resistance, points 37 to 39
23

Alloy Composition

Aluminum (Al), % 1.2 to 1.6
0
Boron (B), % 0.010 to 0.015
0
Carbon (C), % 0.030 to 0.070
1.4 to 2.0
Chromium (Cr), % 23 to 25
27 to 32
Cobalt (Co), % 19 to 21
47.5 to 64.1
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 1.0
0 to 3.0
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 1.0 to 2.0
0 to 1.0
Nickel (Ni), % 43.6 to 52.2
0 to 3.0
Niobium (Nb), % 0.7 to 1.2
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.5
0 to 2.0
Sulfur (S), % 0 to 0.0070
0
Tantalum (Ta), % 0 to 0.050
0
Titanium (Ti), % 2.8 to 3.2
0
Tungsten (W), % 0
7.5 to 9.5
Zirconium (Zr), % 0.030 to 0.070
0