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R31233 Cobalt vs. CC381H Copper-nickel

R31233 cobalt belongs to the cobalt alloys classification, while CC381H copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R31233 cobalt and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
140
Elongation at Break, % 17
20
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 85
52
Tensile Strength: Ultimate (UTS), MPa 1020
380
Tensile Strength: Yield (Proof), MPa 420
140

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Melting Completion (Liquidus), °C 1350
1180
Melting Onset (Solidus), °C 1330
1120
Specific Heat Capacity, J/kg-K 440
410
Thermal Conductivity, W/m-K 12
30
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
6.9

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.9
Embodied Carbon, kg CO2/kg material 8.4
5.0
Embodied Energy, MJ/kg 110
73
Embodied Water, L/kg 480
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
60
Resilience: Unit (Modulus of Resilience), kJ/m3 410
68
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 33
12
Strength to Weight: Bending, points 26
13
Thermal Diffusivity, mm2/s 3.2
8.4
Thermal Shock Resistance, points 25
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Boron (B), % 0 to 0.015
0
Carbon (C), % 0.020 to 0.1
0 to 0.030
Chromium (Cr), % 23.5 to 27.5
0
Cobalt (Co), % 44.7 to 63.3
0
Copper (Cu), % 0
64.5 to 69.9
Iron (Fe), % 1.0 to 5.0
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.1 to 1.5
0.6 to 1.2
Molybdenum (Mo), % 4.0 to 6.0
0
Nickel (Ni), % 7.0 to 11
29 to 31
Nitrogen (N), % 0.030 to 0.12
0
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0.050 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.020
0 to 0.010
Tungsten (W), % 1.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.5