ASTM B563 Pd-Ag-Cu vs. AWS BCo-1

ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals classification, while AWS BCo-1 belongs to the cobalt alloys. There are 15 material properties with values for both materials. Properties with values for just one material (9, 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 AWS BCo-1.

ASTM B563 Palladium-Silver-Copper Electrical Contact Alloy AWS BCo-1 (R39001) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.37
Poisson's Ratio		0.3

Shear Modulus, GPa		37
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		760 to 1170
Tensile Strength: Ultimate (UTS), MPa		700

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		420

Melting Completion (Liquidus), °C		1180
Melting Completion (Liquidus), °C		1150

Melting Onset (Solidus), °C		1030
Melting Onset (Solidus), °C		1120

Specific Heat Capacity, J/kg-K		260
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		11
Density, g/cm³		8.1

Common Calculations

Stiffness to Weight: Axial, points		5.2
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		19 to 30
Strength to Weight: Axial, points		24

Strength to Weight: Bending, points		17 to 22
Strength to Weight: Bending, points		22

Thermal Shock Resistance, points		39 to 61
Thermal Shock Resistance, points		21

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.050

Boron (B), %		0
Boron (B), %		0.7 to 0.9

Carbon (C), %		0
Carbon (C), %		0.35 to 0.45

Chromium (Cr), %		0
Chromium (Cr), %		18 to 20

Cobalt (Co), %		0
Cobalt (Co), %		46 to 54

Copper (Cu), %		15.5 to 16.5
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		0 to 1.0

Nickel (Ni), %		0.8 to 1.2
Nickel (Ni), %		16 to 18

Palladium (Pd), %		43 to 45
Palladium (Pd), %		0

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.020

Platinum (Pt), %		0.8 to 1.2
Platinum (Pt), %		0

Selenium (Se), %		0
Selenium (Se), %		0 to 0.0050

Silicon (Si), %		0
Silicon (Si), %		7.5 to 8.5

Silver (Ag), %		37 to 39
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.020

Titanium (Ti), %		0
Titanium (Ti), %		0 to 0.050

Tungsten (W), %		0
Tungsten (W), %		3.5 to 4.5

Zirconium (Zr), %		0
Zirconium (Zr), %		0 to 0.050

Residuals, %		0
Residuals, %		0 to 0.5