MakeItFrom.com
Menu (ESC)

R30816 Cobalt vs. EN 2.4851 Nickel

R30816 cobalt belongs to the cobalt alloys classification, while EN 2.4851 nickel belongs to the nickel alloys. They have 43% of their average alloy composition in common. There are 26 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 R30816 cobalt and the bottom bar is EN 2.4851 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 250
170
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 1020
650
Tensile Strength: Yield (Proof), MPa 460
230

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1540
1360
Melting Onset (Solidus), °C 1460
1310
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Density, g/cm3 9.1
8.2
Embodied Carbon, kg CO2/kg material 20
8.1
Embodied Energy, MJ/kg 320
120
Embodied Water, L/kg 440
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
170
Resilience: Unit (Modulus of Resilience), kJ/m3 510
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 31
22
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 3.3
2.9
Thermal Shock Resistance, points 28
17

Alloy Composition

Aluminum (Al), % 0
1.0 to 1.7
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.32 to 0.42
0.030 to 0.1
Chromium (Cr), % 19 to 21
21 to 25
Cobalt (Co), % 40 to 49.8
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 0 to 5.0
7.7 to 18
Manganese (Mn), % 1.0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 19 to 21
58 to 63
Niobium (Nb), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Tantalum (Ta), % 3.5 to 4.5
0
Titanium (Ti), % 0
0 to 0.5
Tungsten (W), % 3.5 to 4.5
0