ASTM B540 Palladium vs. Grade 366 Molybdenum

Both ASTM B540 palladium and grade 366 molybdenum are otherwise unclassified metals. There are 17 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 ASTM B540 palladium and the bottom bar is grade 366 molybdenum.

ASTM B540 Palladium Electrical Contact Alloy Grade 366 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		300

Elongation at Break, %		1.1 to 14
Elongation at Break, %		2.2

Poisson's Ratio		0.38
Poisson's Ratio		0.3

Shear Modulus, GPa		39
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		830 to 1240
Tensile Strength: Ultimate (UTS), MPa		580

Tensile Strength: Yield (Proof), MPa		620 to 1000
Tensile Strength: Yield (Proof), MPa		470

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		310

Specific Heat Capacity, J/kg-K		240
Specific Heat Capacity, J/kg-K		210

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		7.6

Otherwise Unclassified Properties

Density, g/cm³		13
Density, g/cm³		12

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		13 to 100
Resilience: Ultimate (Unit Rupture Work), MJ/m³		12

Resilience: Unit (Modulus of Resilience), kJ/m³		1790 to 4660
Resilience: Unit (Modulus of Resilience), kJ/m³		370

Stiffness to Weight: Axial, points		4.7
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		12
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		18 to 27
Strength to Weight: Axial, points		13

Strength to Weight: Bending, points		15 to 20
Strength to Weight: Bending, points		13

Thermal Shock Resistance, points		41 to 61
Thermal Shock Resistance, points		18

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0 to 0.030

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), %		0 to 0.010

Molybdenum (Mo), %		0
Molybdenum (Mo), %		66.9 to 73

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.0020

Nitrogen (N), %		0
Nitrogen (N), %		0 to 0.0020

Oxygen (O), %		0
Oxygen (O), %		0 to 0.0025

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

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

Silicon (Si), %		0
Silicon (Si), %		0 to 0.010

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

Tungsten (W), %		0
Tungsten (W), %		27 to 33

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

Residuals, %		0 to 0.3
Residuals, %		0