Grade Ti-Pd17 Cast Titanium
Grade Ti-Pd17 titanium is a titanium alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. It has the highest ductility and the lowest tensile strength among cast titaniums.
The graph bars on the material properties cards below compare grade Ti-Pd17 titanium to: cast titaniums (top), all titanium alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
200
Elastic (Young's, Tensile) Modulus
110 GPa 15 x 106 psi
Elongation at Break
22 %
Fatigue Strength
140 MPa 20 x 103 psi
Poisson's Ratio
0.32
Rockwell C Hardness
21
Shear Modulus
40 GPa 5.9 x 106 psi
Tensile Strength: Ultimate (UTS)
270 MPa 39 x 103 psi
Tensile Strength: Yield (Proof)
190 MPa 28 x 103 psi
Thermal Properties
Latent Heat of Fusion
420 J/g
Maximum Temperature: Mechanical
320 °C 600 °F
Melting Completion (Liquidus)
1660 °C 3020 °F
Melting Onset (Solidus)
1610 °C 2930 °F
Specific Heat Capacity
540 J/kg-K 0.13 BTU/lb-°F
Thermal Conductivity
21 W/m-K 12 BTU/h-ft-°F
Thermal Expansion
8.7 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
3.6 % IACS
Electrical Conductivity: Equal Weight (Specific)
7.1 % IACS
Otherwise Unclassified Properties
Density
4.5 g/cm3 280 lb/ft3
Embodied Carbon
36 kg CO2/kg material
Embodied Energy
600 MJ/kg 260 x 103 BTU/lb
Embodied Water
230 L/kg 27 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
55 MJ/m3
Resilience: Unit (Modulus of Resilience)
180 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
35 points
Strength to Weight: Axial
17 points
Strength to Weight: Bending
21 points
Thermal Diffusivity
8.8 mm2/s
Thermal Shock Resistance
21 points
Alloy Composition
| Ti | 98.9 to 99.96 | |
| O | 0 to 0.25 | |
| Fe | 0 to 0.2 | |
| Pd | 0.040 to 0.080 | |
| C | 0 to 0.1 | |
| Ni | 0 to 0.030 | |
| H | 0 to 0.015 | |
| res. | 0 to 0.4 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B367: Standard Specification for Titanium and Titanium Alloy Castings
Titanium and Titanium Alloys: Fundamentals and Applications, Christoph Leyens and Manfred Peters (editors), 2003
Titanium, 2nd ed., G. Lutjering and J. C. Williams, 2007