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R30006 Cobalt vs. C96900 Copper-nickel

R30006 cobalt belongs to the cobalt alloys classification, while C96900 copper-nickel belongs to the copper alloys. There are 24 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 R30006 cobalt and the bottom bar is C96900 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 1.0
4.5
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
45
Tensile Strength: Ultimate (UTS), MPa 900
850
Tensile Strength: Yield (Proof), MPa 540
830

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1400
1060
Melting Onset (Solidus), °C 1290
960
Specific Heat Capacity, J/kg-K 450
380
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
9.2

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 7.8
4.6
Embodied Energy, MJ/kg 110
72
Embodied Water, L/kg 500
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
38
Resilience: Unit (Modulus of Resilience), kJ/m3 670
2820
Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 29
27
Strength to Weight: Bending, points 24
23
Thermal Shock Resistance, points 26
30

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
Copper (Cu), % 0
73.6 to 78
Iron (Fe), % 0 to 3.0
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0
0.050 to 0.3
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
14.5 to 15.5
Niobium (Nb), % 0
0 to 0.1
Silicon (Si), % 0 to 2.0
0 to 0.3
Tin (Sn), % 0
7.5 to 8.5
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5