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C14200 Copper vs. R31539 Cobalt

C14200 copper belongs to the copper alloys classification, while R31539 cobalt belongs to the cobalt alloys. There are 27 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 C14200 copper and the bottom bar is R31539 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 8.0 to 45
13 to 22
Fatigue Strength, MPa 76 to 130
310 to 480
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
86
Tensile Strength: Ultimate (UTS), MPa 220 to 370
1000 to 1340
Tensile Strength: Yield (Proof), MPa 75 to 340
590 to 940

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Melting Completion (Liquidus), °C 1080
1360
Melting Onset (Solidus), °C 1030
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 190
13
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 45
2.1

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29 to 83
140 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 24 to 500
780 to 2000
Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 6.8 to 11
33 to 44
Strength to Weight: Bending, points 9.1 to 13
27 to 32
Thermal Diffusivity, mm2/s 56
3.5
Thermal Shock Resistance, points 7.9 to 13
24 to 32

Alloy Composition

Aluminum (Al), % 0
0.3 to 1.0
Arsenic (As), % 0.15 to 0.5
0
Carbon (C), % 0
0 to 0.14
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
57.7 to 68.7
Copper (Cu), % 99.4 to 99.835
0
Iron (Fe), % 0
0 to 0.75
Lanthanum (La), % 0
0.030 to 0.2
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0.015 to 0.040
0
Silicon (Si), % 0
0 to 1.0