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C16200 Copper vs. R30016 Cobalt

C16200 copper belongs to the copper alloys classification, while R30016 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 C16200 copper and the bottom bar is R30016 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
220
Elongation at Break, % 2.0 to 56
8.4
Fatigue Strength, MPa 100 to 210
290
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
85
Tensile Strength: Ultimate (UTS), MPa 240 to 550
1010
Tensile Strength: Yield (Proof), MPa 48 to 470
580

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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