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Annealed 85-silver 15-nickel vs. Annealed R31538 Cobalt

Annealed 85-silver 15-nickel belongs to the otherwise unclassified metals classification, while annealed R31538 cobalt belongs to the cobalt alloys. There are 17 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is annealed 85-silver 15-nickel and the bottom bar is annealed R31538 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 88
220
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 32
86
Tensile Strength: Ultimate (UTS), MPa 260
1020

Thermal Properties

Latent Heat of Fusion, J/g 140
320
Melting Completion (Liquidus), °C 870
1360
Melting Onset (Solidus), °C 960
1290
Specific Heat Capacity, J/kg-K 270
450
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 86
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 75
2.1

Otherwise Unclassified Properties

Density, g/cm3 10
8.4

Common Calculations

Stiffness to Weight: Axial, points 4.8
15
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 7.1
34
Strength to Weight: Bending, points 8.9
27
Thermal Shock Resistance, points 12
25

Alloy Composition


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Carbon (C), % 0
0.15 to 0.35
Chromium (Cr), % 0
26 to 30
Cobalt (Co), % 0
58.7 to 68.9
Iron (Fe), % 0
0 to 0.75
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 13.8 to 16
0 to 1.0
Nitrogen (N), % 0
0 to 0.25
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 84 to 86
0
Residuals, % 0 to 0.2
0