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ASTM B563 Pd-Ag-Cu vs. R30021 Cobalt

ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals classification, while R30021 cobalt belongs to the cobalt alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM B563 Pd-Ag-Cu and the bottom bar is R30021 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
220
Elongation at Break, % 7.0 to 17
9.0
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 37
86
Tensile Strength: Ultimate (UTS), MPa 760 to 1170
700

Thermal Properties

Latent Heat of Fusion, J/g 150
330
Melting Completion (Liquidus), °C 1180
1350
Melting Onset (Solidus), °C 1030
1190
Specific Heat Capacity, J/kg-K 260
450
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.6 to 6.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 4.6 to 5.5
2.1

Otherwise Unclassified Properties

Density, g/cm3 11
8.4

Common Calculations

Stiffness to Weight: Axial, points 5.2
15
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 19 to 30
23
Strength to Weight: Bending, points 17 to 22
21
Thermal Shock Resistance, points 39 to 61
21

Alloy Composition


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Carbon (C), % 0
0.2 to 0.35
Chromium (Cr), % 0
26 to 29
Cobalt (Co), % 0
61.7 to 67.3
Copper (Cu), % 15.5 to 16.5
0
Iron (Fe), % 0
0 to 3.0
Molybdenum (Mo), % 0
4.5 to 6.0
Nickel (Ni), % 0.8 to 1.2
2.0 to 3.0
Palladium (Pd), % 43 to 45
0
Platinum (Pt), % 0.8 to 1.2
0
Silicon (Si), % 0
0 to 1.5
Silver (Ag), % 37 to 39
0
Residuals, % 0 to 0.4
0