AWS E33-31 vs. ASTM B540 Palladium

AWS E33-31 belongs to the iron alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is ASTM B540 palladium.

AWS E33-31 (W33310) Weld Metal ASTM B540 Palladium Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		210
Elastic (Young's, Tensile) Modulus, GPa		110

Elongation at Break, %		29
Elongation at Break, %		1.1 to 14

Poisson's Ratio		0.27
Poisson's Ratio		0.38

Shear Modulus, GPa		81
Shear Modulus, GPa		39

Tensile Strength: Ultimate (UTS), MPa		810
Tensile Strength: Ultimate (UTS), MPa		830 to 1240

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		140

Melting Completion (Liquidus), °C		1380
Melting Completion (Liquidus), °C		1220

Melting Onset (Solidus), °C		1330
Melting Onset (Solidus), °C		1020

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		240

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

Otherwise Unclassified Properties

Density, g/cm³		7.9
Density, g/cm³		13

Common Calculations

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

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

Strength to Weight: Axial, points		28
Strength to Weight: Axial, points		18 to 27

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		15 to 20

Thermal Shock Resistance, points		19
Thermal Shock Resistance, points		41 to 61

Alloy Composition

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

Chromium (Cr), %		31 to 35
Chromium (Cr), %		0

Copper (Cu), %		0.4 to 0.8
Copper (Cu), %		13.5 to 14.5

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

Iron (Fe), %		24.7 to 34.8
Iron (Fe), %		0

Manganese (Mn), %		2.5 to 4.0
Manganese (Mn), %		0

Molybdenum (Mo), %		1.0 to 2.0
Molybdenum (Mo), %		0

Nickel (Ni), %		30 to 32
Nickel (Ni), %		0

Nitrogen (N), %		0.3 to 0.5
Nitrogen (N), %		0

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

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0

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

Silicon (Si), %		0 to 0.9
Silicon (Si), %		0

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

Sulfur (S), %		0 to 0.010
Sulfur (S), %		0

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

Residuals, %		0
Residuals, %		0 to 0.3