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Grade Ti-Pd7B Cast Titanium

Grade Ti-Pd7B titanium is a titanium alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. It has a fairly high thermal conductivity and a fairly high embodied energy among cast titaniums.

The graph bars on the material properties cards below compare grade Ti-Pd7B 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

180

Elastic (Young's, Tensile) Modulus

110 GPa 15 x 106 psi

Elongation at Break

17 %

Fatigue Strength

200 MPa 29 x 103 psi

Poisson's Ratio

0.32

Rockwell B Hardness

83

Shear Modulus

40 GPa 5.9 x 106 psi

Tensile Strength: Ultimate (UTS)

390 MPa 57 x 103 psi

Tensile Strength: Yield (Proof)

310 MPa 45 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

22 W/m-K 13 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

49 kg CO2/kg material

Embodied Energy

840 MJ/kg 360 x 103 BTU/lb

Embodied Water

520 L/kg 62 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

62 MJ/m3

Resilience: Unit (Modulus of Resilience)

440 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

35 points

Strength to Weight: Axial

24 points

Strength to Weight: Bending

26 points

Thermal Diffusivity

8.9 mm2/s

Thermal Shock Resistance

30 points

Alloy Composition

Titanium (Ti) 98.8 to 99.9
Palladium (Pd) 0.12 to 0.3
Oxygen (O) 0 to 0.4
Iron (Fe) 0 to 0.2
Carbon (C) 0 to 0.1
Nickel (Ni) 0 to 0.050
Hydrogen (H) 0 to 0.015
Residuals 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