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R30006 Cobalt vs. C19700 Copper

R30006 cobalt belongs to the cobalt alloys classification, while C19700 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is C19700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 1.0
2.4 to 13
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 900
400 to 530
Tensile Strength: Yield (Proof), MPa 540
330 to 520

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1400
1090
Melting Onset (Solidus), °C 1290
1040
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 15
250
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
86 to 88
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
87 to 89

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.9
Embodied Carbon, kg CO2/kg material 7.8
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 500
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
12 to 49
Resilience: Unit (Modulus of Resilience), kJ/m3 670
460 to 1160
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 29
12 to 16
Strength to Weight: Bending, points 24
14 to 16
Thermal Diffusivity, mm2/s 3.9
73
Thermal Shock Resistance, points 26
14 to 19

Alloy Composition


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Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0 to 0.050
Copper (Cu), % 0
97.4 to 99.59
Iron (Fe), % 0 to 3.0
0.3 to 1.2
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.010 to 0.2
Manganese (Mn), % 0
0 to 0.050
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0 to 0.050
Phosphorus (P), % 0
0.1 to 0.4
Silicon (Si), % 0 to 2.0
0
Tin (Sn), % 0
0 to 0.2
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.2