Standard Specification for Seamless and Welded Unalloyed Titanium and Titanium Alloy Welding Fittings
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Titanium and Titanium Alloy Welded Pipe1 This standard is issued under the fixed designation B 862; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1.1.18 Grade 23—Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitial, ELI), 1.1.19 Grade 24—Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.04 % to 0.08 % palladium, 1.1.20 Grade 25—Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.3 % to 0.8 % nickel and 0.04 % to 0.08 % palladium, 1.1.21 Grade 26—Unalloyed titanium plus 0.08 % to 0.14 % ruthenium, 1.1.22 Grade 27—Unalloyed titanium plus 0.08 % to 0.14 % ruthenium, 1.1.23 Grade 28—Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.08 % to 0.14 % ruthenium, 1.1.24 Grade 29—Titanium alloy (6 % aluminum, 4 % vanadium with extra low interstitial elements (ELI)) plus 0.08 % to 0.14 % ruthenium, 1.1.25 Grade 33—Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium), 1.1.26 Grade 34—Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium), 1.1.27 Grade 35—Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon), 1.1.28 Grade 37—Titanium alloy (1.5 % aluminum), and 1.1.29 Grade 38—Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron). 1.2 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.). 1.3 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. 1.4 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. Scope 1.1 This specification covers the requirements for 29 grades of titanium and titanium alloy welded pipe intended for general corrosion resisting and elevated temperature service as follows: 1.1.1 Grade 1—Unalloyed titanium, low oxygen, 1.1.2 Grade 2—Unalloyed titanium, standard oxygen, 1.1.3 Grade 3—Unalloyed titanium, medium oxygen, 1.1.4 Grade 5—Titanium alloy (6 % aluminum, 4 % vanadium), 1.1.5 Grade 7—Unalloyed titanium plus 0.12 % to 0.25 % palladium, standard oxygen, 1.1.6 Grade 9—Titanium alloy (3 % aluminum, 2.5 % vanadium), 1.1.7 Grade 11—Unalloyed titanium plus 0.12 % to 0.25 % palladium, low oxygen, 1.1.8 Grade 12—Titanium alloy (0.3 % molybdenum, 0.8 % nickel), 1.1.9 Grade 13—Titanium alloy (0.5 % nickel, 0.05 % ruthenium), low oxygen, 1.1.10 Grade 14—Titanium alloy (0.5 % nickel, 0.05 % ruthenium), standard oxygen, 1.1.11 Grade 15—Titanium alloy (0.5 % nickel, 0.05 % ruthenium), medium oxygen, 1.1.12 Grade 16—Unalloyed titanium plus 0.04 % to 0.08 % palladium, standard oxygen, 1.1.13 Grade 17—Unalloyed titanium plus 0.04 % to 0.08 % palladium, low oxygen, 1.1.14 Grade 18—Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.04 % to 0.08 % palladium), 1.1.15 Grade 19—Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum), 1.1.16 Grade 20—Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum) plus 0.04 % to 0.08 % palladium, 1.1.17 Grade 21—Titanium alloy (15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon), 1 This specification is under the jurisdiction of ASTM Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of Subcommittee B10.01 on Titanium. Current edition approved April 1, 2006. Published May 2006. Originally approved in 1995. Last previous edition approved in 2005 as B 862 – 05e1. Copyright © ASTM International, 100 Barr Ha

TABLE 1 Dimensions of Pipe NOTE 1—Schedule sizes conform to ANSI/ASME B 36.19 (for “ S” sizes) or B 36.10 (for non-S sizes). NOTE 2—The decimal thickness listed for the respective pipe sizes represent their nominal wall dimensions. NPS Desig. Nominal Wall Thickness Schedule 5SA in mm Threading not permitted in accordance with ANSI B.

B 862 – 06 Thermal Conductivity/Infrared Detection Method 2.2 ANSI/ASME Standards: 4 B.1.20.1 Pipe Threads, General Purpose (Inch) B 36.10 Carbon, Alloy and Stainless Steel Pipes B 36.19M-1985 Stainless Steel Pipe ASME Boiler and Pressure Vessel Code, Section VIII 2. Referenced Documents 2.1 ASTM Standards: 2 A 370 Test Methods and Definitions for Mechanical Testing of Steel Products B 600 Guide for Descaling and Cleaning Titanium and Titanium Alloy Surfaces E 8 Test Methods for Tension Testing of Metallic Materials E 29 Practice for Using Significant Digits in Test Data to Determine...

B 862 – 06 TABLE 2 Continued Composition, % Element Grade 14 Nitrogen, max Carbon, max Hydrogen,B,C max Iron, max Oxygen, max Aluminum Vanadium Tin Ruthenium Palladium Cobalt Molybdenum Chromium Nickel Niobium Zirconium Silicon Residuals,D,E,F max each Residuals,D,E,F max total TitaniumG Composition, % Element Grade 25 Nitrogen, max Carbon, max Hydrogen,B,C max Iron, max or range Oxygen, max or range Aluminum Vanadium Tin Ruthenium Palladium Cobalt Molybdenum Chromium Nickel Niobium Zirconium Silicon Residuals,D,E,F max each Residuals,D,E,F max total TitaniumG Analysis shall be completed...