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R30016 Cobalt vs. C74000 Nickel Silver

R30016 cobalt belongs to the cobalt alloys classification, while C74000 nickel silver belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is C74000 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 85
44
Tensile Strength: Ultimate (UTS), MPa 1010
380 to 590

Thermal Properties

Latent Heat of Fusion, J/g 320
200
Melting Completion (Liquidus), °C 1360
990
Melting Onset (Solidus), °C 1270
950
Specific Heat Capacity, J/kg-K 450
390
Thermal Expansion, µm/m-K 14
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
42

Otherwise Unclassified Properties

Density, g/cm3 8.5
8.5
Embodied Carbon, kg CO2/kg material 7.7
3.4
Embodied Energy, MJ/kg 110
54
Embodied Water, L/kg 500
310

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 33
13 to 19
Strength to Weight: Bending, points 26
14 to 18
Thermal Shock Resistance, points 24
13 to 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
69 to 73.5
Iron (Fe), % 0 to 3.0
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0.5 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
9.0 to 11
Silicon (Si), % 0.2 to 2.0
0
Tungsten (W), % 3.5 to 5.5
0
Zinc (Zn), % 0
14.2 to 22
Residuals, % 0
0 to 0.5