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R30155 Cobalt vs. Grade CZ100 Nickel

R30155 cobalt belongs to the iron alloys classification, while grade CZ100 nickel belongs to the nickel alloys. They have a modest 23% 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 (7, in this case) are not shown.

For each property being compared, the top bar is R30155 cobalt and the bottom bar is grade CZ100 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
180
Elongation at Break, % 34
11
Fatigue Strength, MPa 310
68
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 81
69
Tensile Strength: Ultimate (UTS), MPa 850
390
Tensile Strength: Yield (Proof), MPa 390
140

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1470
1350
Melting Onset (Solidus), °C 1420
1300
Specific Heat Capacity, J/kg-K 450
450
Thermal Conductivity, W/m-K 12
73
Thermal Expansion, µm/m-K 14
11

Otherwise Unclassified Properties

Base Metal Price, % relative 80
60
Density, g/cm3 8.5
8.8
Embodied Carbon, kg CO2/kg material 9.7
10
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 300
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
35
Resilience: Unit (Modulus of Resilience), kJ/m3 370
54
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 28
12
Strength to Weight: Bending, points 24
14
Thermal Diffusivity, mm2/s 3.2
19
Thermal Shock Resistance, points 21
14

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 1.0
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0 to 1.3
Iron (Fe), % 24.3 to 36.2
0 to 3.0
Manganese (Mn), % 1.0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
95 to 100
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 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