ASTM B563 Pd-Ag-Cu vs. C81500 Copper

ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals classification, while C81500 copper belongs to the copper 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 C81500 copper.

ASTM B563 Palladium-Silver-Copper Electrical Contact Alloy UNS C81500 Chromium Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		7.0 to 17
Elongation at Break, %		17

Poisson's Ratio		0.37
Poisson's Ratio		0.34

Shear Modulus, GPa		37
Shear Modulus, GPa		44

Tensile Strength: Ultimate (UTS), MPa		760 to 1170
Tensile Strength: Ultimate (UTS), MPa		350

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		210

Melting Completion (Liquidus), °C		1180
Melting Completion (Liquidus), °C		1090

Melting Onset (Solidus), °C		1030
Melting Onset (Solidus), °C		1080

Specific Heat Capacity, J/kg-K		260
Specific Heat Capacity, J/kg-K		390

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		5.6 to 6.7
Electrical Conductivity: Equal Volume, % IACS		82

Electrical Conductivity: Equal Weight (Specific), % IACS		4.6 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS		83

Otherwise Unclassified Properties

Density, g/cm³		11
Density, g/cm³		8.9

Common Calculations

Stiffness to Weight: Axial, points		5.2
Stiffness to Weight: Axial, points		7.3

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		19 to 30
Strength to Weight: Axial, points		11

Strength to Weight: Bending, points		17 to 22
Strength to Weight: Bending, points		12

Thermal Shock Resistance, points		39 to 61
Thermal Shock Resistance, points		12

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.1

Chromium (Cr), %		0
Chromium (Cr), %		0.4 to 1.5

Copper (Cu), %		15.5 to 16.5
Copper (Cu), %		97.4 to 99.6

Iron (Fe), %		0
Iron (Fe), %		0 to 0.1

Lead (Pb), %		0
Lead (Pb), %		0 to 0.020

Nickel (Ni), %		0.8 to 1.2
Nickel (Ni), %		0

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

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

Silicon (Si), %		0
Silicon (Si), %		0 to 0.15

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

Tin (Sn), %		0
Tin (Sn), %		0 to 0.1

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.1

Residuals, %		0
Residuals, %		0 to 0.5