C42500 Brass vs. 60Pd-40Ag Alloy

C42500 brass belongs to the copper alloys classification, while 60Pd-40Ag alloy belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C42500 brass and the bottom bar is 60Pd-40Ag alloy.

UNS C42500 (CW454K) Tin Brass 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

Elongation at Break, %		2.0 to 49
Elongation at Break, %		1.1 to 28

Poisson's Ratio		0.33
Poisson's Ratio		0.38

Shear Modulus, GPa		42
Shear Modulus, GPa		37

Shear Strength, MPa		220 to 360
Shear Strength, MPa		220 to 350

Tensile Strength: Ultimate (UTS), MPa		310 to 630
Tensile Strength: Ultimate (UTS), MPa		340 to 720

Thermal Properties

Latent Heat of Fusion, J/g		200
Latent Heat of Fusion, J/g		140

Melting Completion (Liquidus), °C		1030
Melting Completion (Liquidus), °C		1360

Melting Onset (Solidus), °C		1010
Melting Onset (Solidus), °C		1310

Specific Heat Capacity, J/kg-K		380
Specific Heat Capacity, J/kg-K		240

Thermal Conductivity, W/m-K		120
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		28
Electrical Conductivity: Equal Volume, % IACS		4.1

Electrical Conductivity: Equal Weight (Specific), % IACS		29
Electrical Conductivity: Equal Weight (Specific), % IACS		3.2

Otherwise Unclassified Properties

Density, g/cm³		8.7
Density, g/cm³		11

Common Calculations

Stiffness to Weight: Axial, points		7.1
Stiffness to Weight: Axial, points		4.9

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

Strength to Weight: Axial, points		9.9 to 20
Strength to Weight: Axial, points		8.4 to 18

Strength to Weight: Bending, points		12 to 19
Strength to Weight: Bending, points		9.6 to 16

Thermal Diffusivity, mm²/s		36
Thermal Diffusivity, mm²/s		11

Thermal Shock Resistance, points		11 to 22
Thermal Shock Resistance, points		16 to 34

Alloy Composition

Copper (Cu), %		87 to 90
Copper (Cu), %		0 to 0.1

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0

Lead (Pb), %		0 to 0.050
Lead (Pb), %		0

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

Phosphorus (P), %		0 to 0.35
Phosphorus (P), %		0

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

Tin (Sn), %		1.5 to 3.0
Tin (Sn), %		0

Zinc (Zn), %		6.1 to 11.5
Zinc (Zn), %		0

Residuals, %		0
Residuals, %		0 to 0.3