Grade Ti-Pd18 Cast Titanium
Grade Ti-Pd18 titanium is a titanium alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. It has a moderately high embodied energy among the cast titaniums in the database.
The graph bars on the material properties cards below compare grade Ti-Pd18 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
320
Elastic (Young's, Tensile) Modulus
110 GPa 15 x 106 psi
Elongation at Break
17 %
Fatigue Strength
350 MPa 51 x 103 psi
Poisson's Ratio
0.32
Rockwell C Hardness
34
Shear Modulus
40 GPa 5.8 x 106 psi
Tensile Strength: Ultimate (UTS)
710 MPa 100 x 103 psi
Tensile Strength: Yield (Proof)
540 MPa 78 x 103 psi
Thermal Properties
Latent Heat of Fusion
410 J/g
Maximum Temperature: Mechanical
330 °C 630 °F
Melting Completion (Liquidus)
1640 °C 2980 °F
Melting Onset (Solidus)
1590 °C 2890 °F
Specific Heat Capacity
550 J/kg-K 0.13 BTU/lb-°F
Thermal Conductivity
8.2 W/m-K 4.7 BTU/h-ft-°F
Thermal Expansion
9.1 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.7 % IACS
Otherwise Unclassified Properties
Density
4.5 g/cm3 280 lb/ft3
Embodied Carbon
41 kg CO2/kg material
Embodied Energy
670 MJ/kg 290 x 103 BTU/lb
Embodied Water
270 L/kg 33 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m3
Resilience: Unit (Modulus of Resilience)
1380 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
35 points
Strength to Weight: Axial
44 points
Strength to Weight: Bending
39 points
Thermal Diffusivity
3.3 mm2/s
Thermal Shock Resistance
52 points
Alloy Composition
| Ti | 92.5 to 95.5 | |
| Al | 2.5 to 3.5 | |
| V | 2.0 to 3.0 | |
| Fe | 0 to 0.25 | |
| O | 0 to 0.15 | |
| Pd | 0.040 to 0.080 | |
| C | 0 to 0.1 | |
| Ni | 0 to 0.050 | |
| 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 Alloys: Modelling of Microstructure, Properties, and Applications, Wei Sha and Savko Malinov, 2009
Titanium and Titanium Alloys: Fundamentals and Applications, Christoph Leyens and Manfred Peters (editors), 2003
Titanium, 2nd ed., G. Lutjering and J. C. Williams, 2007