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R30075 Cobalt vs. EN 2.4633 Nickel

R30075 cobalt belongs to the cobalt alloys classification, while EN 2.4633 nickel belongs to the nickel alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R30075 cobalt and the bottom bar is EN 2.4633 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
200
Elongation at Break, % 12
34
Fatigue Strength, MPa 250 to 840
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 82 to 98
76
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
760
Tensile Strength: Yield (Proof), MPa 480 to 840
310

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1360
1350
Melting Onset (Solidus), °C 1290
1300
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.6

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 8.1
8.4
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 530
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 140
210
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1410
240
Stiffness to Weight: Axial, points 14 to 17
13
Stiffness to Weight: Bending, points 24 to 25
24
Strength to Weight: Axial, points 26 to 42
26
Strength to Weight: Bending, points 22 to 31
23
Thermal Diffusivity, mm2/s 3.5
2.9
Thermal Shock Resistance, points 21 to 29
22

Alloy Composition

Aluminum (Al), % 0 to 0.1
1.8 to 2.4
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0.15 to 0.25
Chromium (Cr), % 27 to 30
24 to 26
Cobalt (Co), % 58.7 to 68
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 0.75
8.0 to 11
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 0.5
58.8 to 65.9
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0 to 0.1
0.1 to 0.2
Tungsten (W), % 0 to 0.2
0
Yttrium (Y), % 0
0.050 to 0.12
Zirconium (Zr), % 0
0.010 to 0.1