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CC383H Copper-nickel vs. R30816 Cobalt

CC383H copper-nickel belongs to the copper alloys classification, while R30816 cobalt belongs to the cobalt alloys. They have a modest 23% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 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 CC383H copper-nickel and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
280
Elastic (Young's, Tensile) Modulus, GPa 140
210
Elongation at Break, % 20
23
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 52
81
Tensile Strength: Ultimate (UTS), MPa 490
1020
Tensile Strength: Yield (Proof), MPa 260
460

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Melting Completion (Liquidus), °C 1180
1540
Melting Onset (Solidus), °C 1130
1460
Specific Heat Capacity, J/kg-K 410
420
Thermal Conductivity, W/m-K 29
13
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Density, g/cm3 8.9
9.1
Embodied Carbon, kg CO2/kg material 5.7
20
Embodied Energy, MJ/kg 83
320
Embodied Water, L/kg 280
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
190
Resilience: Unit (Modulus of Resilience), kJ/m3 250
510
Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 19
22
Strength to Weight: Axial, points 15
31
Strength to Weight: Bending, points 16
25
Thermal Diffusivity, mm2/s 8.1
3.3
Thermal Shock Resistance, points 17
28

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Bismuth (Bi), % 0 to 0.010
0
Boron (B), % 0 to 0.010
0
Cadmium (Cd), % 0 to 0.020
0
Carbon (C), % 0 to 0.030
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 64 to 69.1
0
Iron (Fe), % 0.5 to 1.5
0 to 5.0
Lead (Pb), % 0 to 0.010
0
Magnesium (Mg), % 0 to 0.010
0
Manganese (Mn), % 0.6 to 1.2
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 29 to 31
19 to 21
Niobium (Nb), % 0.5 to 1.0
3.5 to 4.5
Phosphorus (P), % 0 to 0.010
0 to 0.040
Selenium (Se), % 0 to 0.010
0
Silicon (Si), % 0.3 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tellurium (Te), % 0 to 0.010
0
Tungsten (W), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.5
0