MakeItFrom.com
Menu (ESC)

R31539 Cobalt vs. EN 2.4851 Nickel

R31539 cobalt belongs to the cobalt alloys classification, while EN 2.4851 nickel belongs to the nickel alloys. They have a modest 25% 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 (6, in this case) are not shown.

For each property being compared, the top bar is R31539 cobalt and the bottom bar is EN 2.4851 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 13 to 22
34
Fatigue Strength, MPa 310 to 480
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 86
76
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
650
Tensile Strength: Yield (Proof), MPa 590 to 940
230

Thermal Properties

Latent Heat of Fusion, J/g 320
320
Melting Completion (Liquidus), °C 1360
1360
Melting Onset (Solidus), °C 1290
1310
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.4
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 8.2
8.1
Embodied Energy, MJ/kg 110
120
Embodied Water, L/kg 530
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
170
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
130
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 33 to 44
22
Strength to Weight: Bending, points 27 to 32
20
Thermal Diffusivity, mm2/s 3.5
2.9
Thermal Shock Resistance, points 24 to 32
17

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
1.0 to 1.7
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.14
0.030 to 0.1
Chromium (Cr), % 26 to 30
21 to 25
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 0.75
7.7 to 18
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
58 to 63
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.5