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R30605 Cobalt vs. 90-silver 10-nickel

R30605 cobalt belongs to the cobalt alloys classification, while 90-silver 10-nickel belongs to the otherwise unclassified metals. There are 17 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 R30605 cobalt and the bottom bar is 90-silver 10-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
82
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 81
30
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 290
130
Melting Completion (Liquidus), °C 1410
840
Melting Onset (Solidus), °C 1330
960
Specific Heat Capacity, J/kg-K 410
260
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
90
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
79

Otherwise Unclassified Properties

Density, g/cm3 9.6
10

Common Calculations

Stiffness to Weight: Axial, points 12
4.4
Stiffness to Weight: Bending, points 21
14
Strength to Weight: Axial, points 33 to 55
6.7 to 11
Strength to Weight: Bending, points 25 to 36
8.5 to 12
Thermal Shock Resistance, points 31 to 52
11 to 19

Alloy Composition


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Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Iron (Fe), % 0 to 3.0
0
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
8.8 to 11
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0
Silver (Ag), % 0
89 to 91
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 14 to 16
0
Residuals, % 0
0 to 0.2

Comparable Variants