ASTM B540 Palladium vs. EN 1.5023 Steel

ASTM B540 palladium belongs to the otherwise unclassified metals classification, while EN 1.5023 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ASTM B540 palladium and the bottom bar is EN 1.5023 steel.

ASTM B540 Palladium Electrical Contact Alloy EN 1.5023 (38Si7) Silicon Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.38
Poisson's Ratio		0.29

Shear Modulus, GPa		39
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		830 to 1240
Tensile Strength: Ultimate (UTS), MPa		570 to 1860

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1220
Melting Completion (Liquidus), °C		1440

Melting Onset (Solidus), °C		1020
Melting Onset (Solidus), °C		1400

Specific Heat Capacity, J/kg-K		240
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		4.9 to 5.5
Electrical Conductivity: Equal Volume, % IACS		7.3

Electrical Conductivity: Equal Weight (Specific), % IACS		3.5 to 3.9
Electrical Conductivity: Equal Weight (Specific), % IACS		8.4

Otherwise Unclassified Properties

Density, g/cm³		13
Density, g/cm³		7.7

Common Calculations

Stiffness to Weight: Axial, points		4.7
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		12
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		18 to 27
Strength to Weight: Axial, points		21 to 67

Strength to Weight: Bending, points		15 to 20
Strength to Weight: Bending, points		20 to 43

Thermal Shock Resistance, points		41 to 61
Thermal Shock Resistance, points		17 to 56

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0.35 to 0.42

Copper (Cu), %		13.5 to 14.5
Copper (Cu), %		0

Gold (Au), %		9.5 to 10.5
Gold (Au), %		0

Iron (Fe), %		0
Iron (Fe), %		96.9 to 97.7

Manganese (Mn), %		0
Manganese (Mn), %		0.5 to 0.8

Palladium (Pd), %		34 to 36
Palladium (Pd), %		0

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

Platinum (Pt), %		9.5 to 10.5
Platinum (Pt), %		0

Silicon (Si), %		0
Silicon (Si), %		1.5 to 1.8

Silver (Ag), %		29 to 31
Silver (Ag), %		0

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

Zinc (Zn), %		0.8 to 1.2
Zinc (Zn), %		0

Residuals, %		0 to 0.3
Residuals, %		0