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R31538 Cobalt vs. 60Pd-40Ag Alloy

R31538 cobalt belongs to the cobalt alloys classification, while 60Pd-40Ag alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R31538 cobalt and the bottom bar is 60Pd-40Ag alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
100
Elongation at Break, % 13 to 23
1.1 to 28
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 86
37
Tensile Strength: Ultimate (UTS), MPa 1020 to 1360
340 to 720

Thermal Properties

Latent Heat of Fusion, J/g 320
140
Melting Completion (Liquidus), °C 1360
1360
Melting Onset (Solidus), °C 1290
1310
Specific Heat Capacity, J/kg-K 450
240
Thermal Conductivity, W/m-K 13
29
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
4.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.2

Otherwise Unclassified Properties

Density, g/cm3 8.4
11

Common Calculations

Stiffness to Weight: Axial, points 15
4.9
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 34 to 45
8.4 to 18
Strength to Weight: Bending, points 27 to 32
9.6 to 16
Thermal Diffusivity, mm2/s 3.5
11
Thermal Shock Resistance, points 25 to 33
16 to 34

Alloy Composition


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Carbon (C), % 0.15 to 0.35
0
Chromium (Cr), % 26 to 30
0
Cobalt (Co), % 58.7 to 68.9
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 0.75
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 1.0
0
Nitrogen (N), % 0 to 0.25
0
Palladium (Pd), % 0
59.5 to 60.9
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
39.1 to 40.5
Residuals, % 0
0 to 0.3

Comparable Variants