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Grade CU5MCuC Nickel vs. R30075 Cobalt

Grade CU5MCuC nickel belongs to the nickel alloys classification, while R30075 cobalt belongs to the cobalt 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 (8, in this case) are not shown.

For each property being compared, the top bar is grade CU5MCuC nickel and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210 to 250
Elongation at Break, % 22
12
Fatigue Strength, MPa 170
250 to 840
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
82 to 98
Tensile Strength: Ultimate (UTS), MPa 580
780 to 1280
Tensile Strength: Yield (Proof), MPa 270
480 to 840

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Melting Completion (Liquidus), °C 1420
1360
Melting Onset (Solidus), °C 1370
1290
Specific Heat Capacity, J/kg-K 460
450
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 7.7
8.1
Embodied Energy, MJ/kg 110
110
Embodied Water, L/kg 230
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
84 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
560 to 1410
Stiffness to Weight: Axial, points 13
14 to 17
Stiffness to Weight: Bending, points 24
24 to 25
Strength to Weight: Axial, points 20
26 to 42
Strength to Weight: Bending, points 19
22 to 31
Thermal Shock Resistance, points 16
21 to 29

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Boron (B), % 0
0 to 0.010
Carbon (C), % 0 to 0.050
0 to 0.35
Chromium (Cr), % 19.5 to 23.5
27 to 30
Cobalt (Co), % 0
58.7 to 68
Copper (Cu), % 1.5 to 3.5
0
Iron (Fe), % 22.2 to 37.9
0 to 0.75
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
5.0 to 7.0
Nickel (Ni), % 38 to 44
0 to 0.5
Niobium (Nb), % 0.6 to 1.2
0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 0
0 to 0.2