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Commercially Pure Palladium vs. Grade 27 Titanium

Commercially pure palladium belongs to the otherwise unclassified metals classification, while grade 27 titanium belongs to the titanium alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, 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 grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
110
Elongation at Break, % 1.1 to 11
27
Poisson's Ratio 0.39
0.32
Shear Modulus, GPa 43
41
Shear Strength, MPa 120 to 200
180
Tensile Strength: Ultimate (UTS), MPa 200 to 380
270

Thermal Properties

Latent Heat of Fusion, J/g 160
420
Melting Completion (Liquidus), °C 1550
1660
Melting Onset (Solidus), °C 1550
1610
Specific Heat Capacity, J/kg-K 240
540
Thermal Expansion, µm/m-K 12
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
7.1

Otherwise Unclassified Properties

Density, g/cm3 12
4.5

Common Calculations

Stiffness to Weight: Axial, points 5.6
13
Stiffness to Weight: Bending, points 14
35
Strength to Weight: Axial, points 4.5 to 8.8
17
Strength to Weight: Bending, points 6.2 to 9.7
21
Thermal Shock Resistance, points 9.8 to 19
21

Alloy Composition

Carbon (C), % 0
0 to 0.080
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.2
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 99.8 to 100
0
Ruthenium (Ru), % 0
0.080 to 0.14
Titanium (Ti), % 0
99 to 99.92
Residuals, % 0
0 to 0.4