Full Description

1.1This specification2 covers annealed titanium and titanium alloy bars and billets as follows:

1.1.1Grade 1-UNS R50250. Unalloyed titanium,

1.1.2Grade 2-UNS R50400. Unalloyed titanium,

1.1.2.1Grade 2H-UNS R50400. Unalloyed titanium (Grade 2 with 58 ksi [400 MPa] minimum UTS),

1.1.3Grade 3-UNS R50550. Unalloyed titanium,

1.1.4Grade 4-UNS R50700. Unalloyed titanium,

1.1.5Grade 5-UNS R56400. Titanium alloy (6% aluminum, 4% vanadium),

1.1.6Grade 6-UNS R54520. Titanium alloy (5% aluminum, 2.5% tin),

1.1.7Grade 7-UNS R52400. Unalloyed titanium plus 0.12 to 0.25% palladium,

1.1.7.1Grade 7H-UNS R52400. Unalloyed titanium plus 0.12 to 0.25% palladium (Grade 7 with 58 ksi [400 MPa] minimum UTS),

1.1.8Grade 9-UNS R56320. Titanium alloy (3% aluminum, 2.5% vanadium),

1.1.9Grade 11-UNS R52250. Unalloyed titanium plus 0.12 to 0.25% palladium,

1.1.10Grade 12-UNS R53400. Titanium alloy (0.3% molybdenum, 0.8% nickel),

1.1.11Grade 13-UNS R53413. Titanium alloy (0.5% nickel, 0.05% ruthenium),

1.1.12Grade 14-UNS R53414. Titanium alloy (0.5% nickel, 0.05% ruthenium),

1.1.13Grade 15-UNS R53415. Titanium alloy (0.5% nickel, 0.05% ruthenium),

1.1.14Grade 16-UNS R52402. Unalloyed titanium plus 0.04 to 0.08% palladium,

1.1.14.1Grade 16H-UNS R52402. Unalloyed titanium plus 0.04 to 0.08% palladiumm (Grade 16 with 58 ksi [400 MPa] minimum UTS),

1.1.15Grade 17-UNS R52252. Unalloyed titanium plus 0.04 to 0.08% palladium,

1.1.16Grade 18-UNS R56322. Titanium alloy (3% aluminum, 2.5% vanadium) plus 0.04 to 0.08% palladium,

1.1.17Grade 19-UNS R58640. Titanium alloy (3% aluminum, 8% vanadium, 6% chromium, 4% zirconium, 4% molybdenum),

1.1.18Grade 20-UNS R58645. Titanium alloy (3% aluminum, 8% vanadium, 6% chromium, 4% zirconium, 4% molybdenum) plus 0.04%-0.08% palladium,

1.1.19Grade 21-UNS R58210. Titanium alloy (15% molybdenum, 3% aluminum, 2.7% niobium, 0.25% silicon),

1.1.20Grade 23-UNS R56407. Titanium alloy (6% aluminum, 4% vanadium with extra low interstitial elements, ELI),

1.1.21Grade 24-UNS R56405. Titanium alloy (6% aluminum, 4% vanadium) plus 0.04% to 0.08% palladium,

1.1.22Grade 25-UNS R56403. Titanium alloy (6% aluminum, 4% vanadium) plus 0.3% to 0.8% nickel and 0.04% to 0.08% palladium,

1.1.23Grade 26-UNS R52404. Unalloyed titanium plus 0.08 to 0.14% ruthenium,

1.1.23.1Grade 26H-UNS R52404. Unalloyed titanium plus 0.08 to 0.14% ruthenium (Grade 26 with 58 ksi [400 MPa] minimum UTS),

1.1.24Grade 27-UNS R52254. Unalloyed titanium plus 0.08 to 0.14% ruthenium,

1.1.25Grade 28-UNS R56323. Titanium alloy (3% aluminum, 2.5% vanadium plus 0.08-0.14% ruthenium),

1.1.26Grade 29-UNS R56404. Titanium alloy (6% aluminum, 4% vanadium, extra low interstitial, ELI plus 0.08 to 0.14% ruthenium),

1.1.27Grade 30-UNS R53530. Titanium alloy (0.3% cobalt, 0.05% palladium),

1.1.28Grade 31-UNS R53532. Titanium alloy (0.3% cobalt, 0.05% palladium),

1.1.29Grade 32-UNS R55111. Titanium alloy (5% aluminum, 1% tin, 1% zirconium, 1% vanadium, 0.8% molybdenum),

1.1.30Grade 33-UNS R53442. Titanium alloy (0.4% nickel, 0.015% palladium, 0.025% ruthenium, 0.15% chromium),

1.1.31Grade 34-UNS R53445. Titanium alloy (0.4% nickel, 0.015% palladium, 0.025% ruthenium, 0.15% chromium),

1.1.32Grade 35-UNS R56340. Titanium alloy (4.5% aluminum, 2% molybdenum, 1.6% vanadium, 0.5% iron, 0.3% silicon),

1.1.33Grade 36-UNS R58450. Titanium alloy (45% niobium),

1.1.34Grade 37-UNS R52815. Titanium alloy (1.5% aluminum), and

1.1.35Grade 38-UNS R54250. Titanium alloy (4% aluminum, 2.5% vanadium, 1.5% iron).

Note 1:H grade material is identical to the corresponding numeric grade (that is, Grade 2H = Grade 2) except for the higher guaranteed minimum UTS, and may always be certified as meeting the requirements of its corresponding numeric grade. Grades 2H, 7H, 16H, and 26H are intended primarily for pressure vessel use.

1.2The values state in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

1.3This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.