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Grade 27 Titanium vs. Commercially Pure Palladium

Grade 27 titanium belongs to the titanium alloys classification, while commercially pure palladium belongs to the otherwise unclassified metals. 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 grade 27 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, % 27
1.1 to 11
Poisson's Ratio 0.32
0.39
Shear Modulus, GPa 41
43
Shear Strength, MPa 180
120 to 200
Tensile Strength: Ultimate (UTS), MPa 270
200 to 380

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
16
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
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 17
4.5 to 8.8
Strength to Weight: Bending, points 21
6.2 to 9.7
Thermal Shock Resistance, points 21
9.8 to 19

Alloy Composition

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