1.1Β This specification covers the requirements for 33 grades of titanium and titanium alloy welded pipe intended for general corrosion resisting and elevated temperature service as follows:
1.1.1Β Grade 1βUNS R50250. Unalloyed titanium,
1.1.2Β Grade 2βUNS R50400. Unalloyed titanium,
1.1.2.1Β Grade 2HβUNS R50400. Unalloyed titanium (Grade 2 with 58 ksi (400 MPa) minimum UTS),
1.1.3Β Grade 3βUNS R50550. Unalloyed titanium,
1.1.4Β Grade 5βUNS R56400. Titanium alloy (6β% aluminum, 4β% vanadium),
1.1.5Β Grade 7βUNS R52400. Unalloyed titanium plus 0.12 to 0.25β% palladium,
1.1.5.1Β Grade 7HβUNS R52400. Unalloyed titanium plus 0.12 to 0.25β% palladium (Grade 7 with 58 ksi (400 MPa) minimum UTS),
1.1.6Β Grade 9βUNS R56320. Titanium alloy (3β% aluminum, 2.5β% vanadium),
1.1.7Β Grade 11βUNS R52250. Unalloyed titanium plus 0.12 to 0.25β% palladium,
1.1.8Β Grade 12βUNS R53400. Titanium alloy (0.3β% molybdenum, 0.8β% nickel),
1.1.9Β Grade 13βUNS R53413. Titanium alloy (0.5β% nickel, 0.05β% ruthenium),
1.1.10Β Grade 14βUNS R53414. Titanium alloy (0.5β% nickel, 0.05β% ruthenium),
1.1.11Β Grade 15βUNS R53415. Titanium alloy (0.5β% nickel, 0.05β% ruthenium),
1.1.12Β Grade 16βUNS R52402. Unalloyed titanium plus 0.04 to 0.08β% palladium,
1.1.12.1Β Grade 16HβUNS R52402. Unalloyed titanium plus 0.04 to 0.08β% palladium (Grade 16 with 58 ksi (400 MPa) minimum UTS),
1.1.13Β Grade 17βUNS R52252. Unalloyed titanium plus 0.04 to 0.08β% palladium,
1.1.14Β Grade 18βUNS R56322. Titanium alloy (3β% aluminum, 2.5β% vanadium plus 0.04 to 0.08β% palladium),
1.1.15Β Grade 19βUNS R58640. Titanium alloy (3β% aluminum, 8β% vanadium, 6β% chromium, 4β% zirconium, 4β% molybdenum),
1.1.16Β Grade 20βUNS R58645. Titanium alloy (3β% aluminum, 8β% vanadium, 6β% chromium, 4β% zirconium, 4β% molybdenum) plus 0.04 to 0.08β% palladium,
1.1.17Β Grade 21βUNS R58210. Titanium alloy (15β% molybdenum, 3β% aluminum, 2.7β% niobium, 0.25β% silicon),
1.1.18Β Grade 23βUNS R56407. Titanium alloy (6β% aluminum, 4β% vanadium, extra low interstitial, ELI),
1.1.19Β Grade 24βUNS R56405. Titanium alloy (6β% aluminum, 4β% vanadium) plus 0.04 to 0.08β% palladium,
1.1.20Β Grade 25βUNS R56403. Titanium alloy (6β% aluminum, 4β% vanadium) plus 0.3 to 0.8β% nickel and 0.04 to 0.08β% palladium,
1.1.21Β Grade 26βUNS R52404. Unalloyed titanium plus 0.08 to 0.14β% ruthenium,
1.1.21.1Β Grade 26HβUNS R52404. Unalloyed titanium plus 0.08 to 0.14β% ruthenium (Grade 26 with 58 ksi (400 MPa) minimum UTS),
1.1.22Β Grade 27βUNS R52254. Unalloyed titanium plus 0.08 to 0.14β% ruthenium,
1.1.23Β Grade 28βUNS R56323. Titanium alloy (3β% aluminum, 2.5β% vanadium) plus 0.08 to 0.14β% ruthenium,
1.1.24Β Grade 29βUNS R56404. Titanium alloy (6β% aluminum, 4β% vanadium with extra low interstitial elements (ELI)) plus 0.08 to 0.14β% ruthenium,
1.1.25Β Grade 33βUNS R53442. Titanium alloy (0.4β% nickel, 0.015β% palladium, 0.025β% ruthenium, 0.15β% chromium),
1.1.26Β Grade 34βUNS R53445. Titanium alloy (0.4β% nickel, 0.015β% palladium, 0.025β% ruthenium, 0.15β% chromium),
1.1.27Β Grade 35βUNS R56340. Titanium alloy (4.5β% aluminum, 2β% molybdenum, 1.6β% vanadium, 0.5β% iron, 0.3β% silicon),
1.1.28Β Grade 37βUNS R52815. Titanium alloy (1.5β% aluminum),
1.1.29Β Grade 38βUNS R54250. Titanium alloy (4β% aluminum, 2.5β% vanadium, 1.5β% iron), and
1.1.30Β Grade 39βUNS R53390. Titanium alloy (0.25 % iron, 0.4 % silicon).
Note 1:Β 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.
1.2Β Pipe 8 in. NPS (nominal pipe size) and larger is most frequently custom made for an order. In such cases, the purchaser carefully should consider the applicability of this specification. Since the pipe is custom made, the purchaser may choose a wall thickness other than those in Table 1 to meet specific operating conditions. The purchaser may also be better served to specify only the portions of this specification that are required to meet the operating conditions (for example, annealing, flattening test, chemistry, properties, etc.).
1.3Β Optional supplementary requirements are provided for pipe where a greater degree of testing is desired. These supplementary requirements may be invoked by the purchaser, when desired, by specifying in the order.
1.4Β The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
This specification covers the requirements for 33 grades of titanium and titanium alloy welded pipe intended for general corrosion resisting and elevated temperature service. Welded pipe shall be made from annealed flat-rolled products by a welding process. Welded pipe may be further reduced by cold working or hot working. Grades 1, 2, 2 H, 7, 7H, 11,13, 14, 16, 16H, 17, 26H, 33, and 37 shall be furnished as welded or annealed. Grades 3, 12, 15, and 34 shall be furnished as annealed. Grade 5, 23, 24, 25, 35 shall be furnished as annealed, or aged. Grade 9, 18, 38 shall be furnished as annealed. Grade 19, 20, 21 shall be furnished as solution treated, or solution treated and aged. The materials shall conform to the required chemical composition for nitrogen, carbon, hydrogen, iron, oxygen, aluminum, vanadium, tin, ruthenium, palladium, cobalt, molybdenum, chromium, nickel, niobium, zirconium, silicon, and titanium. They shall also conform to the required mechanical propetries such as tensile strength, yield strength, and elongation.
| SDO | ASTM: ASTM International |
| Document Number | B862 |
| Publication Date | Nov. 1, 2014 |
| Language | en - English |
| Page Count | 11 |
| Revision Level | 14 |
| Supercedes | |
| Committee | B10.01 |