Ti-Grade 11; Unalloyed titanium + 0.12 % to 0.25 % Pd, low oxygen,
Special Properties
Low-alloy titanium materials were mainly developed for use in the chemical industry. They offer the same excellent properties as pure titanium grades together with improved corrosion resistance. This is achieved by means of minor additions of Pd and Ni + Mo, which raise their resistance to reducing solutions and reduce their susceptibility to crevice corrosion, especially in chloride-containing media
Nominal Composition
Fe: 0.20 max
O: 0.18 max
C: 0.08 max
N: 0.03 max
H: 0.015 max
Pd: 0.25 max
Ti: Balance
Physical Properties
Density: 0.163 lb/in3, (4.51 g/cm3)
Modulus of Elasticity (E):
At 70°F (20°C): 16.3 x 103 ksi (112 GPa)
Modulus of Rigidity (G)
At 70°F (20°C): 5.9 x 103 ksi (41 GPa)
Coefficient of Expansion:
5.4 µin/in.-°F (70°F to 932°F)
9.7 µm/m-°C (20°C to 500°C)
Electrical Resistivity: 21 µΩ.in, (53.3 µΩ.cm)
Thermal Conductivity: 12.6 Btu-in/ft2hr-°F, (21.79 W/m-K)
Applicable Specifications
Strip and Foil: ASTM B265
Typical Mechanical Properties
Annealed
Heat Treatment: 1290°F
Tensile Strength: 35 ksi (240 MPa) min – 50 ksi (345 MPa) typ
Suggested Operating Conditions: -300°F to 1000°F (-184°C to 540°C)
Application
Chemical processing, chlorate manufacturing, desalination, and marine applications.
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The chemical composition of grade 11 Ti-0.15Pd alloy is outlined in the following table.
Element | Content (%) |
---|---|
Iron, Fe | <0.20 |
Oxygen, O | <0.18 |
Palladium, Pd | 0.12-0.25 |
Carbon, C | <0.10 |
Nitrogen, N | <0.03 |
Hydrogen, H | <0.015 |
Titanium, Ti | Balance |
The physical properties of grade 11 Ti-0.15Pd alloy are tabulated below.
Properties | Metric | Imperial |
---|---|---|
Density | 4.51 g/cm3 | 0.162 lb/in3 |
Melting point | 1670°C | 3038°F |
The following table shows mechanical properties of grade 11 Ti-0.15Pd alloy.
Properties | Metric | Imperial |
---|---|---|
Tensile strength | 345 MPa | 50038 psi |
Yield strength | 221 MPa | 32908 psi |
Elastic modulus | 103 GPa | 14938 ksi |
Elongation over 2”% | 37% | 37% |
Hardness (BHN) | 120 | 120 |
The thermal properties of grade 11 Ti-0.15Pd alloy are tabulated below.
Properties | Metric | Imperial |
---|---|---|
Thermal conductivity (room temperature) | 20.6 W/mK | 143 BTU in/hr.ft².°F |
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