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Commercially Pure Palladium vs. 319.0 Aluminum

Commercially pure palladium belongs to the otherwise unclassified metals classification, while 319.0 aluminum belongs to the aluminum alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is commercially pure palladium and the bottom bar is 319.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
72
Elongation at Break, % 1.1 to 11
1.8 to 2.0
Poisson's Ratio 0.39
0.33
Shear Modulus, GPa 43
27
Shear Strength, MPa 120 to 200
170 to 210
Tensile Strength: Ultimate (UTS), MPa 200 to 380
190 to 240

Thermal Properties

Latent Heat of Fusion, J/g 160
480
Melting Completion (Liquidus), °C 1550
600
Melting Onset (Solidus), °C 1550
540
Specific Heat Capacity, J/kg-K 240
880
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
27
Electrical Conductivity: Equal Weight (Specific), % IACS 12
84

Otherwise Unclassified Properties

Density, g/cm3 12
2.9

Common Calculations

Stiffness to Weight: Axial, points 5.6
14
Stiffness to Weight: Bending, points 14
48
Strength to Weight: Axial, points 4.5 to 8.8
18 to 24
Strength to Weight: Bending, points 6.2 to 9.7
25 to 30
Thermal Shock Resistance, points 9.8 to 19
8.6 to 11

Alloy Composition

Aluminum (Al), % 0
85.8 to 91.5
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 0
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.35
Palladium (Pd), % 99.8 to 100
0
Silicon (Si), % 0
5.5 to 6.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5