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Grade Ti-Pd18 Titanium vs. Commercially Pure Palladium

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while commercially pure palladium belongs to the otherwise unclassified metals. There are 18 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 grade Ti-Pd18 titanium and the bottom bar is commercially pure palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 17
1.1 to 11
Poisson's Ratio 0.32
0.39
Shear Modulus, GPa 40
43
Tensile Strength: Ultimate (UTS), MPa 710
200 to 380

Thermal Properties

Latent Heat of Fusion, J/g 410
160
Melting Completion (Liquidus), °C 1640
1550
Melting Onset (Solidus), °C 1590
1550
Specific Heat Capacity, J/kg-K 550
240
Thermal Expansion, µm/m-K 9.1
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
16
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
12

Otherwise Unclassified Properties

Density, g/cm3 4.5
12

Common Calculations

Stiffness to Weight: Axial, points 13
5.6
Stiffness to Weight: Bending, points 35
14
Strength to Weight: Axial, points 44
4.5 to 8.8
Strength to Weight: Bending, points 39
6.2 to 9.7
Thermal Shock Resistance, points 52
9.8 to 19

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
99.8 to 100
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0
0 to 0.2