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R30016 Cobalt vs. C16200 Copper

R30016 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 (8, in this case) are not shown.

For each property being compared, the top bar is R30016 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, % 8.4
2.0 to 56
Fatigue Strength, MPa 290
100 to 210
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 1010
240 to 550
Tensile Strength: Yield (Proof), MPa 580
48 to 470

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1080
Melting Onset (Solidus), °C 1270
1030
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 15
360
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
90
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
90

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.0
Embodied Carbon, kg CO2/kg material 7.7
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 500
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
10 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 770
10 to 970
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33
7.4 to 17
Strength to Weight: Bending, points 26
9.6 to 17
Thermal Diffusivity, mm2/s 3.9
100
Thermal Shock Resistance, points 24
8.7 to 20

Alloy Composition

Cadmium (Cd), % 0
0.7 to 1.2
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
98.6 to 99.3
Iron (Fe), % 0 to 3.0
0 to 0.2
Manganese (Mn), % 0.5 to 2.0
0
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0.2 to 2.0
0
Tungsten (W), % 3.5 to 5.5
0