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R30155 Cobalt vs. EN 1.4889 Cast Nickel

R30155 cobalt belongs to the iron alloys classification, while EN 1.4889 cast nickel belongs to the nickel alloys. They have 60% 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 R30155 cobalt and the bottom bar is EN 1.4889 cast nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 34
3.4
Fatigue Strength, MPa 310
110
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 850
500
Tensile Strength: Yield (Proof), MPa 390
270

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Maximum Temperature: Mechanical, °C 1100
1160
Melting Completion (Liquidus), °C 1470
1360
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 80
55
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 9.7
8.5
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 300
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
14
Resilience: Unit (Modulus of Resilience), kJ/m3 370
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 21
13

Alloy Composition

Carbon (C), % 0.080 to 0.16
0.35 to 0.45
Chromium (Cr), % 20 to 22.5
32.5 to 37.5
Cobalt (Co), % 18.5 to 21
0
Iron (Fe), % 24.3 to 36.2
10.5 to 21.2
Manganese (Mn), % 1.0 to 2.0
1.0 to 1.5
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
42 to 46
Niobium (Nb), % 0.75 to 1.3
1.5 to 2.0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.5 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0.75 to 1.3
0
Tungsten (W), % 2.0 to 3.0
0