Titanium and Titanium Alloy Bars and Billets1 This standard is issued under the fixed designation B 348; 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 (´) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1.1.17 Grade 19—Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum), 1.1.18 Grade 20—Titanium alloy (3 % aluminum, 8 % vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum) plus 0.04 %–0.08 % palladium, 1.1.19 Grade 21—Titanium alloy (15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon), 1.1.20 Grade 23—Titanium alloy (6 % aluminum, 4 % vanadium with extra low interstitial elements, ELI), 1.1.21 Grade 24—Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.04 % to 0.08 % palladium, 1.1.22 Grade 25—Titanium alloy (6 % aluminum, 4 % vanadium) plus 0.3 % to 0.8 % nickel and 0.04 % to 0.08 % palladium, 1.1.23 Grade 26—Unalloyed titanium plus 0.08 to 0.14 % ruthenium, 1.1.23.1 Grade 26H—Unalloyed titanium plus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi minimum UTS), 1.1.24 Grade 27—Unalloyed titanium plus 0.08 to 0.14 % ruthenium, 1.1.25 Grade 28—Titanium alloy (3 % aluminum, 2.5 % vanadium plus 0.08–0.14 % ruthenium), 1.1.26 Grade 29—Titanium alloy (6 % aluminum, 4 % vanadium, extra low interstitial, ELI plus 0.08 to 0.14 % ruthenium), 1.1.27 Grade 30—Titanium alloy (0.3 % cobalt, 0.05 % palladium), 1.1.28 Grade 31—Titanium alloy (0.3 % cobalt, 0.05 % palladium), 1.1.29 Grade 32—Titanium alloy (5 % aluminum, 1 % tin, 1 % zirconium, 1 % vanadium, 0.8 % molybdenum), 1.1.30 Grade 33—Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium), 1.1.31 Grade 34—Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium), 1.1.32 Grade 35—Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon), 1.1.33 Grade 36—Titanium alloy (45 % niobium), 1.1.34 Grade 37—Titanium alloy (1.5 % aluminum), and 1.1.35 Grade 38—Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron). 1. Scope* 1.1 This specification2 covers annealed titanium and titanium alloy bars and billets as follows: 1.1.1 Grade 1—Unalloyed titanium, 1.1.2 Grade 2—Unalloyed titanium, 1.1.2.1 Grade 2H—Unalloyed titanium (Grade 2 with 58 ksi minimum UTS), 1.1.3 Grade 3—Unalloyed titanium, 1.1.4 Grade 4—Unalloyed titanium, 1.1.5 Grade 5—Titanium alloy (6 % aluminum, 4 % vanadium), 1.1.6 Grade 6—Titanium alloy (5 % aluminum, 2.5 % tin), 1.1.7 Grade 7—Unalloyed titanium plus 0.12 to 0.25 % palladium, 1.1.7.1 Grade 7H—Unalloyed titanium plus 0.12 to 0.25 % palladium (Grade 7 with 58 ksi minimum UTS), 1.1.8 Grade 9—Titanium alloy (3 % aluminum, 2.5 % vanadium), 1.1.9 Grade 11—Unalloyed titanium plus 0.12 to 0.25 % palladium, 1.1.10 Grade 12—Titanium alloy (0.3 % molybdenum, 0.8 % nickel), 1.1.11 Grade 13—Titanium alloy (0.5 % nickel, 0.05 % ruthenium), 1.1.12 Grade 14—Titanium alloy (0.5 % nickel, 0.05 % ruthenium), 1.1.13 Grade 15—Titanium alloy (0.5 % nickel, 0.05 % ruthenium), 1.1.14 Grade 16—Unalloyed titanium plus 0.04 to 0.08 % palladium, 1.1.14.1 Grade 16H—Unalloyed titanium plus 0.04 to 0.08 % palladiumm (Grade 16 with 58 ksi minimum UTS), 1.1.15 Grade 17—Unalloyed titanium plus 0.04 to 0.08 % palladium, 1.1.16 Grade 18—Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.04 to 0.08 % palladium, 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 June 1, 2009. Published June 2009. Originally approved in 1959. Last previous edition approved in 2008 as B 348 – 08a. 2 For ASME Boiler and Pressure Vessel Code applications see related Specification SB-348 in Section II of that Code. NOTE 1—H grade material is identical to the corresponding numeric grade (that is, Grade 2H = Grade 2) except for the higher guaranteed *A Summary of Changes section appears at the end of this standard. Copyright © ASTM Inter

B 348 – 09 4.1.9 Disposition of rejected material (Section 14). 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. The H grades were added in response to a user association request based on its study of over 5200 commercial Grade 2, 7, 16, and 26 test reports, where over 99 % met the 58 ksi minimum UTS. 5. Chemical Composition 5.1 The grades of titanium and titanium alloy metal covered by this specification shall conform to the requirements as to chemical composition...

TABLE 1 Chemical Requirements Composition, Weight PercentA,B,C,D,E Nickel Molybdenum Chromium Other Other Elements, Elements, max. max. total each Silicon At minimum, the analysis of samples from the top and bottom of the ingot shall be completed and reported for all elements listed for the respective grade in this table. Final product hydrogen shall be reported. Ingot hydrogen need not be reported. Lower hydrogen may be obtained by negotiation with the manufacturer. Single values are maximum. The percentage of titanium is determined by difference. D Other elements need not be reported unless...

B 348 – 09 TABLE 2 Tensile RequirementsA Tensile Strength, min Yield Strength (0.2 % Offset) min or range A These properties apply to longitudinal sections up to 3 in. (76 mm) in thickness with a maximum of 10 in.2(64.5 cm2). Mechanical properties of larger sections shall be negotiated between the manufacturer and purchaser. B 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. Grade 2H, 7H, 16H, and 26H are intended primarily...