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R30016 Cobalt vs. C77100 Nickel Silver

R30016 cobalt belongs to the cobalt alloys classification, while C77100 nickel silver belongs to the copper alloys. There are 24 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 C77100 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 85
45
Tensile Strength: Ultimate (UTS), MPa 1010
600
Tensile Strength: Yield (Proof), MPa 580
540

Thermal Properties

Latent Heat of Fusion, J/g 320
180
Melting Completion (Liquidus), °C 1360
990
Melting Onset (Solidus), °C 1270
950
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 14
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.5

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.1
Embodied Carbon, kg CO2/kg material 7.7
3.5
Embodied Energy, MJ/kg 110
56
Embodied Water, L/kg 500
310

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 770
1280
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 33
21
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 24
19

Alloy Composition

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
52 to 56
Iron (Fe), % 0 to 3.0
0
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.5 to 2.0
0 to 0.9
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
9.0 to 12
Silicon (Si), % 0.2 to 2.0
0
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
30.6 to 39
Residuals, % 0
0 to 0.5