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R30016 Cobalt vs. Grade CU5MCuC Nickel

R30016 cobalt belongs to the cobalt alloys classification, while grade CU5MCuC 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 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is grade CU5MCuC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 8.4
22
Fatigue Strength, MPa 290
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 85
77
Tensile Strength: Ultimate (UTS), MPa 1010
580
Tensile Strength: Yield (Proof), MPa 580
270

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1360
1420
Melting Onset (Solidus), °C 1270
1370
Specific Heat Capacity, J/kg-K 450
460
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.2
Embodied Carbon, kg CO2/kg material 7.7
7.7
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 500
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
110
Resilience: Unit (Modulus of Resilience), kJ/m3 770
190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
20
Strength to Weight: Bending, points 26
19
Thermal Shock Resistance, points 24
16

Alloy Composition

Carbon (C), % 0.9 to 1.4
0 to 0.050
Chromium (Cr), % 28 to 32
19.5 to 23.5
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
1.5 to 3.5
Iron (Fe), % 0 to 3.0
22.2 to 37.9
Manganese (Mn), % 0.5 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 1.5
2.5 to 3.5
Nickel (Ni), % 0 to 3.0
38 to 44
Niobium (Nb), % 0
0.6 to 1.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.2 to 2.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 3.5 to 5.5
0