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R31539 Cobalt vs. CC140C Copper

R31539 cobalt belongs to the cobalt alloys classification, while CC140C copper belongs to the copper alloys. There are 26 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 R31539 cobalt and the bottom bar is CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 13 to 22
11
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 86
44
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
340
Tensile Strength: Yield (Proof), MPa 590 to 940
230

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1100
Melting Onset (Solidus), °C 1290
1040
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
310
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
77
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
78

Otherwise Unclassified Properties

Density, g/cm3 8.4
8.9
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 530
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 190
34
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 2000
220
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33 to 44
10
Strength to Weight: Bending, points 27 to 32
12
Thermal Diffusivity, mm2/s 3.5
89
Thermal Shock Resistance, points 24 to 32
12

Alloy Composition

Aluminum (Al), % 0.3 to 1.0
0
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0.4 to 1.2
Cobalt (Co), % 57.7 to 68.7
0
Copper (Cu), % 0
98.8 to 99.6
Iron (Fe), % 0 to 0.75
0
Lanthanum (La), % 0.030 to 0.2
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0