ASTM B540 Palladium vs. AWS E219

ASTM B540 palladium belongs to the otherwise unclassified metals classification, while AWS E219 belongs to the iron alloys. There are 16 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 AWS E219.

ASTM B540 Palladium Electrical Contact Alloy AWS E219 (W32310) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		200

Elongation at Break, %		1.1 to 14
Elongation at Break, %		17

Poisson's Ratio		0.38
Poisson's Ratio		0.28

Shear Modulus, GPa		39
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		830 to 1240
Tensile Strength: Ultimate (UTS), MPa		690

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		290

Melting Completion (Liquidus), °C		1220
Melting Completion (Liquidus), °C		1400

Melting Onset (Solidus), °C		1020
Melting Onset (Solidus), °C		1360

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		15

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		14

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		25

Strength to Weight: Bending, points		15 to 20
Strength to Weight: Bending, points		23

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

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0 to 0.060

Chromium (Cr), %		0
Chromium (Cr), %		19 to 21.5

Copper (Cu), %		13.5 to 14.5
Copper (Cu), %		0 to 0.75

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

Iron (Fe), %		0
Iron (Fe), %		58.6 to 67.4

Manganese (Mn), %		0
Manganese (Mn), %		8.0 to 10

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0 to 0.75

Nickel (Ni), %		0
Nickel (Ni), %		5.5 to 7.0

Nitrogen (N), %		0
Nitrogen (N), %		0.1 to 0.3

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

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.040

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

Silicon (Si), %		0
Silicon (Si), %		0 to 1.0

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

Sulfur (S), %		0
Sulfur (S), %		0 to 0.030

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

Residuals, %		0 to 0.3
Residuals, %		0