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R30016 Cobalt vs. C18200 Copper

R30016 cobalt belongs to the cobalt alloys classification, while C18200 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C18200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 8.4
11 to 40
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
44
Tensile Strength: Ultimate (UTS), MPa 1010
310 to 530
Tensile Strength: Yield (Proof), MPa 580
97 to 450

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1080
Melting Onset (Solidus), °C 1270
1070
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 15
320
Thermal Expansion, µm/m-K 14
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
80
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
81

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.9
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
43 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 770
40 to 860
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33
9.6 to 16
Strength to Weight: Bending, points 26
11 to 16
Thermal Diffusivity, mm2/s 3.9
93
Thermal Shock Resistance, points 24
11 to 18

Alloy Composition

Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0.6 to 1.2
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
98.6 to 99.4
Iron (Fe), % 0 to 3.0
0 to 0.1
Lead (Pb), % 0
0 to 0.050
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 to 0.1
Tungsten (W), % 3.5 to 5.5
0