ASTM B563 Pd-Ag-Cu vs. K93500 Alloy

ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals classification, while K93500 alloy belongs to the iron 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 K93500 alloy.

ASTM B563 Palladium-Silver-Copper Electrical Contact Alloy UNS K93500 Low Expansion Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.37
Poisson's Ratio		0.3

Shear Modulus, GPa		37
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		760 to 1170
Tensile Strength: Ultimate (UTS), MPa		490 to 810

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1180
Melting Completion (Liquidus), °C		1430

Melting Onset (Solidus), °C		1030
Melting Onset (Solidus), °C		1380

Specific Heat Capacity, J/kg-K		260
Specific Heat Capacity, J/kg-K		460

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

Otherwise Unclassified Properties

Density, g/cm³		11
Density, g/cm³		8.2

Common Calculations

Stiffness to Weight: Axial, points		5.2
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		19 to 30
Strength to Weight: Axial, points		17 to 27

Strength to Weight: Bending, points		17 to 22
Strength to Weight: Bending, points		17 to 23

Thermal Shock Resistance, points		39 to 61
Thermal Shock Resistance, points		15 to 25

Alloy Composition

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

Carbon (C), %		0
Carbon (C), %		0 to 0.050

Chromium (Cr), %		0
Chromium (Cr), %		0 to 0.25

Cobalt (Co), %		0
Cobalt (Co), %		5.0

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

Iron (Fe), %		0
Iron (Fe), %		61.4 to 63

Magnesium (Mg), %		0
Magnesium (Mg), %		0 to 0.1

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.6

Nickel (Ni), %		0.8 to 1.2
Nickel (Ni), %		32

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

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.015

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

Silicon (Si), %		0
Silicon (Si), %		0 to 0.25

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

Sulfur (S), %		0
Sulfur (S), %		0 to 0.015

Titanium (Ti), %		0
Titanium (Ti), %		0 to 0.1

Zirconium (Zr), %		0
Zirconium (Zr), %		0 to 0.1

Residuals, %		0 to 0.4
Residuals, %		0