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R31537 Cobalt vs. C79600 Nickel Silver

R31537 cobalt belongs to the cobalt alloys classification, while C79600 nickel silver belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is R31537 cobalt and the bottom bar is C79600 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 14 to 23
15
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 87
43
Tensile Strength: Ultimate (UTS), MPa 1000 to 1340
480
Tensile Strength: Yield (Proof), MPa 590 to 940
300

Thermal Properties

Latent Heat of Fusion, J/g 320
180
Melting Completion (Liquidus), °C 1360
930
Melting Onset (Solidus), °C 1290
880
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
36
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.0

Otherwise Unclassified Properties

Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.1
3.5
Embodied Energy, MJ/kg 110
57
Embodied Water, L/kg 530
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 200
63
Resilience: Unit (Modulus of Resilience), kJ/m3 780 to 1990
400
Stiffness to Weight: Axial, points 15
7.8
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 33 to 44
17
Strength to Weight: Bending, points 26 to 32
17
Thermal Diffusivity, mm2/s 3.4
12
Thermal Shock Resistance, points 24 to 32
15

Alloy Composition

Carbon (C), % 0 to 0.14
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.9 to 69
0
Copper (Cu), % 0
43.5 to 46.5
Iron (Fe), % 0 to 0.75
0
Lead (Pb), % 0
0.8 to 1.2
Manganese (Mn), % 0 to 1.0
1.5 to 2.5
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
9.0 to 11
Nitrogen (N), % 0 to 0.25
0
Silicon (Si), % 0 to 1.0
0
Zinc (Zn), % 0
38.3 to 45.2
Residuals, % 0
0 to 0.5