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R31537 Cobalt vs. C16200 Copper

R31537 cobalt belongs to the cobalt alloys classification, while C16200 copper belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R31537 cobalt and the bottom bar is C16200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 14 to 23
2.0 to 56
Fatigue Strength, MPa 310 to 480
100 to 210
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 87
43
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
240 to 550
Tensile Strength: Yield (Proof), MPa 590 to 940
48 to 470

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1080
Melting Onset (Solidus), °C 1290
1030
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 13
360
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
90
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
90

Otherwise Unclassified Properties

Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.1
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 200
10 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
10 to 970
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33 to 44
7.4 to 17
Strength to Weight: Bending, points 26 to 32
9.6 to 17
Thermal Diffusivity, mm2/s 3.4
100
Thermal Shock Resistance, points 24 to 32
8.7 to 20

Alloy Composition

Cadmium (Cd), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
98.6 to 99.3
Iron (Fe), % 0 to 0.75
0 to 0.2
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