ASTM B563 Pd-Ag-Cu vs. EN 1.7108 Steel

ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals classification, while EN 1.7108 steel belongs to the iron alloys. There are 17 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 ASTM B563 Pd-Ag-Cu and the bottom bar is EN 1.7108 steel.

ASTM B563 Palladium-Silver-Copper Electrical Contact Alloy EN 1.7108 (61SiCr7) Silicon-Chromium Steel

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		0.29

Shear Modulus, GPa		37
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		760 to 1170
Tensile Strength: Ultimate (UTS), MPa		670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g		150
Latent Heat of Fusion, J/g		280

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

Melting Onset (Solidus), °C		1030
Melting Onset (Solidus), °C		1390

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		13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		5.6 to 6.7
Electrical Conductivity: Equal Volume, % IACS		7.4

Electrical Conductivity: Equal Weight (Specific), % IACS		4.6 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS		8.7

Otherwise Unclassified Properties

Density, g/cm³		11
Density, g/cm³		7.7

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		25

Strength to Weight: Axial, points		19 to 30
Strength to Weight: Axial, points		24 to 75

Strength to Weight: Bending, points		17 to 22
Strength to Weight: Bending, points		22 to 47

Thermal Shock Resistance, points		39 to 61
Thermal Shock Resistance, points		20 to 63

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0.57 to 0.65

Chromium (Cr), %		0
Chromium (Cr), %		0.2 to 0.45

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

Iron (Fe), %		0
Iron (Fe), %		95.9 to 96.9

Manganese (Mn), %		0
Manganese (Mn), %		0.7 to 1.0

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

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

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.025

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

Silicon (Si), %		0
Silicon (Si), %		1.6 to 2.0

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

Sulfur (S), %		0
Sulfur (S), %		0 to 0.025

Residuals, %		0 to 0.4
Residuals, %		0