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:
1.1.14Β Grade 18βTitanium alloy (3β% aluminum, 2.5β% vanadium plus 0.04 to 0.08β% palladium),
1.1.15Β Grade 19βTitanium alloy (3β% aluminum, 8β% vanadium, 6β% chromium, 4β% zirconium, 4β% molybdenum),
1.1.16Β Grade 20βTitanium alloy (3β% aluminum, 8β% vanadium, 6β% chromium, 4β% zirconium, 4β% molybdenum) plus 0.04 to 0.08β% palladium,
1.1.17Β Grade 21βTitanium alloy (15β% molybdenum, 3β% aluminum, 2.7β% niobium, 0.25β% silicon),
1.1.20Β Grade 25βTitanium alloy (6β% aluminum, 4β% vanadium) plus 0.3 to 0.8β% nickel and 0.04 to 0.08β% palladium,
1.1.23Β Grade 28βTitanium alloy (3β% aluminum, 2.5β% vanadium) plus 0.08 to 0.14β% ruthenium,
1.1.24Β Grade 29βTitanium alloy (6β% aluminum, 4β% vanadium with extra low interstitial elements (ELI)) plus 0.08 to 0.14β% ruthenium,
1.1.25Β Grade 33βTitanium alloy (0.4β% nickel, 0.015β% palladium, 0.025β% ruthenium, 0.15β% chromium),
1.1.26Β Grade 34βTitanium alloy (0.4β% nickel, 0.015β% palladium, 0.025β% ruthenium, 0.15β% chromium),
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.).
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 | June 1, 2013 |
| Language | en - English |
| Page Count | 10 |
| Revision Level | 13 |
| Supercedes | |
| Committee | B10.01 |