C54400 Bronze vs. 60Pd-40Ag Alloy

C54400 bronze belongs to the copper alloys classification, while 60Pd-40Ag alloy belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C54400 bronze and the bottom bar is 60Pd-40Ag alloy.

UNS C54400 (CW456K) Phosphor Bronze 60-Palladium 40-Silver Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		100

Poisson's Ratio		0.34
Poisson's Ratio		0.38

Shear Modulus, GPa		40
Shear Modulus, GPa		37

Tensile Strength: Ultimate (UTS), MPa		330 to 720
Tensile Strength: Ultimate (UTS), MPa		340 to 720

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		140

Melting Completion (Liquidus), °C		1000
Melting Completion (Liquidus), °C		1360

Melting Onset (Solidus), °C		930
Melting Onset (Solidus), °C		1310

Specific Heat Capacity, J/kg-K		370
Specific Heat Capacity, J/kg-K		240

Thermal Conductivity, W/m-K		86
Thermal Conductivity, W/m-K		29

Thermal Expansion, µm/m-K		18
Thermal Expansion, µm/m-K		15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		19
Electrical Conductivity: Equal Volume, % IACS		4.1

Electrical Conductivity: Equal Weight (Specific), % IACS		19
Electrical Conductivity: Equal Weight (Specific), % IACS		3.2

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points		6.8
Stiffness to Weight: Axial, points		4.9

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

Strength to Weight: Axial, points		10 to 22
Strength to Weight: Axial, points		8.4 to 18

Strength to Weight: Bending, points		12 to 20
Strength to Weight: Bending, points		9.6 to 16

Thermal Diffusivity, mm²/s		26
Thermal Diffusivity, mm²/s		11

Thermal Shock Resistance, points		12 to 26
Thermal Shock Resistance, points		16 to 34

Alloy Composition

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Copper (Cu), %		85.4 to 91.5
Copper (Cu), %		0 to 0.1

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

Lead (Pb), %		3.5 to 4.5
Lead (Pb), %		0

Palladium (Pd), %		0
Palladium (Pd), %		59.5 to 60.9

Phosphorus (P), %		0.010 to 0.5
Phosphorus (P), %		0

Silver (Ag), %		0
Silver (Ag), %		39.1 to 40.5

Tin (Sn), %		3.5 to 4.5
Tin (Sn), %		0

Zinc (Zn), %		1.5 to 4.5
Zinc (Zn), %		0

Residuals, %		0 to 0.5
Residuals, %		0 to 0.3