1、Designation: B338 14B338 17Standard Specification forSeamless and Welded Titanium and Titanium Alloy Tubesfor Condensers and Heat Exchangers1This standard is issued under the fixed designation B338; the number immediately following the designation indicates the year oforiginal adoption or, in the ca
2、se of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 Thi
3、s specification2 covers the requirements for 28 grades of titanium and titanium alloy tubing intended for surfacecondensers, evaporators, and heat exchangers, as follows:1.1.1 Grade 1UNS R50250. Unalloyed titanium,1.1.2 Grade 2UNS R50400. Unalloyed titanium,1.1.2.1 Grade 2HUNS R50400. Unalloyed tita
4、nium (Grade 2 with 58 ksi (400 MPa) minimum UTS),1.1.3 Grade 3UNS R50550. Unalloyed titanium,1.1.4 Grade 7UNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium,1.1.4.1 Grade 7HUNS R52400. Unalloyed titanium plus 0.12 to 0.25 % palladium (Grade 7 with 58 ksi (400 MPa) minimumUTS),1.1.5 Grade 9
5、UNS R56320. Titanium alloy (3 % aluminum, 2.5 % vanadium),1.1.6 Grade 11UNS R52250. Unalloyed titanium plus 0.12 to 0.25 % palladium,1.1.7 Grade 12UNS R53400. Titanium alloy (0.3 % molybdenum, 0.8 % nickel),1.1.8 Grade 13UNS R53413. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),1.1.9 Grade 14UNS R
6、53414. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),1.1.10 Grade 15UNS R53415. Titanium alloy (0.5 % nickel, 0.05 % ruthenium),1.1.11 Grade 16UNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium,1.1.11.1 Grade 16HUNS R52402. Unalloyed titanium plus 0.04 to 0.08 % palladium (Grade 16 with
7、58 ksi (400 MPa)minimum UTS),1.1.12 Grade 17UNS R52252. Unalloyed titanium plus 0.04 to 0.08 % palladium,1.1.13 Grade 18UNS R56322. Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.04 to 0.08 % palladium,1.1.14 Grade 26UNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,1.1.14.1 Grade 2
8、6HUNS R52404. Unalloyed titanium plus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi (400 MPa)minimum UTS),1.1.15 Grade 27UNS R52254. Unalloyed titanium plus 0.08 to 0.14 % ruthenium,1.1.16 Grade 28UNS R56323. Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.08 to 0.14 % ruthenium,1.1.17 Grade 3
9、0UNS R53530. Titanium alloy (0.3 % cobalt, 0.05 % palladium),1.1.18 Grade 31UNS R53532. Titanium alloy (0.3 % cobalt, 0.05 % palladium),1.1.19 Grade 33UNS R53442. Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),1.1.20 Grade 34UNS R53445. Titanium alloy (0.4 % nic
10、kel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium),1.1.21 Grade 35UNS R56340. Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 %silicon),1.1.22 Grade 36UNS R58450. Titanium alloy (45 % niobium),1.1.23 Grade 37UNS R52815. Titanium alloy (1.5 % aluminum),1.1.24
11、Grade 38UNS R54250. Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron), and1.1.25 Grade 39UNS R53390. Titanium alloy (0.25 % iron, 0.4 % silicon).1 This specification is under the jurisdiction of ASTM Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility
12、of SubcommitteeB10.01 on Titanium.Current edition approved Jan. 15, 2014July 1, 2017. Published January 2014July 2017. Originally approved in 1958. Last previous edition approved in 20132014 asB338 13a.B338 14. DOI: 10.1520/B0338-14.10.1520/B0338-17.2 For ASME Boiler and Pressure Vessel Code applica
13、tions, see related Specification SB-338 in Section II of that Code.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict a
14、ll changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,
15、100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1NOTE 1H grade material is identical to the corresponding numeric grade (that is, Grade 2H = Grade 2) except for the higher guaranteed minimumUTS, and may always be certified as meeting the requirements of its corresp
16、onding numeric grade. Grades 2H, 7H, 16H, and 26H are intended primarilyfor pressure vessel use.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not conside
17、red standard.1.3 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical B
18、arriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A370 Test Methods and Definitions for Mechanical Testing of Steel ProductsE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specific
19、ationsE213 Practice for Ultrasonic Testing of Metal Pipe and TubingE426 Practice for Electromagnetic (Eddy Current) Examination of Seamless and Welded Tubular Products, Titanium,AusteniticStainless Steel and Similar AlloysE499 Test Methods for Leaks Using the Mass Spectrometer Leak Detector in the D
20、etector Probe ModeE1409 Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas FusionE1447 Test Method for Determination of Hydrogen in Titanium and Titanium Alloys by Inert Gas Fusion ThermalConductivity/Infrared Detection MethodE1941 Test Method for Deter
21、mination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion AnalysisE2371 Test Method for Analysis of Titanium and Titanium Alloys by Direct Current Plasma and Inductively Coupled PlasmaAtomic Emission Spectrometry (Performance-Based Test Methodology)E2626 Guide for Spectrome
22、tric Analysis of Reactive and Refractory Metals (Withdrawn 2017)43. Terminology3.1 Lot Definitions:3.1.1 castings, na lot shall consist of all castings produced from the same pour.3.1.2 ingot, nno definition required.3.1.3 rounds, flats, tubes, and wrought powder metallurgical products (single defin
23、ition, common to nuclear and non-nuclearstandards), na lot shall consist of a material of the same size, shape, condition, and finish produced from the same ingot orpowder blend by the same reduction schedule and the same heat treatment parameters. Unless otherwise agreed betweenmanufacturer and pur
24、chaser, a lot shall be limited to the product of an 8 h period for final continuous anneal, or to a single furnaceload for final batch anneal.3.1.4 sponge, na lot shall consist of a single blend produced at one time.3.1.5 weld fittings, ndefinition is to be mutually agreed upon between manufacturer
25、and the purchaser.4. Ordering Information4.1 Orders for material to this specification shall include the following information, as required:4.1.1 Quantity,4.1.2 Grade number (Section 1),4.1.3 Diameter and wall thickness (Note 2) (Section 12),4.1.4 Length (Section 12),4.1.5 Method of manufacture and
26、finish (Sections 5 and 13),4.1.6 Restrictive chemistry, if desired (Section 6 andTable 1),4.1.7 Product analysis, if desired (Section 7 and Table 2),4.1.8 Special mechanical properties, if desired (Section 8 and Table 3),4.1.9 Nondestructive tests (Section 11),4.1.10 Packaging (Section 23),4.1.11 In
27、spection (Section 17), and4.1.12 Certification (Section 21).3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM
28、website.4 The last approved version of this historical standard is referenced on www.astm.org.B338 172TABLE 1 Chemical RequirementsComposition, Weight PercentA,B,C,D,EGradeUNSNumberCarbon,max.Oxygenrangeor max.Nitrogen,max.Hydrogen,max.Ironrangeor max. Aluminum Vanadium Palladium Ruthenium Nickel Mo
29、lybdenum Chromium Cobalt Zirconium Niobium Tin SiliconOtherElements,max.eachOtherElements,max.total1 R50250 0.08 0.18 0.03 0.015 0.20 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.42/2H R50400 0.08 0.25 0.03 0.015 0.30 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.43 R50550 0.08 0.35
30、 0.05 0.015 0.30 - - - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4 7/7H R52400 0.08 0.25 0.03 0.015 0.30 - - - - 0.12-0.25 - - - - - - - - - - - - - - - - - - 0.1 0.49 R56320 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 - - - - - - - - - - - - - - - - - - - - 0.1 0.411 R52250 0.08 0.18 0.03 0.015
31、 0.20 - - - - 0.12-0.25 - - - - - - - - - - - - - - - - - - 0.1 0.412 R53400 0.08 0.25 0.03 0.015 0.30 - - - - - - - - 0.6-0.9 0.2-0.4 - - - - - - - - - - - - 0.1 0.413 R53413 0.08 0.10 0.03 0.015 0.20 - - - - - - 0.04-0.06 0.4-0.6 - - - - - - - - - - - - - - 0.1 0.414 R53414 0.08 0.15 0.03 0.015 0.
32、30 - - - - - - 0.04-0.06 0.4-0.6 - - - - - - - - - - - - - - 0.1 0.415 R53415 0.08 0.25 0.05 0.015 0.30 - - - - - - 0.04-0.06 0.4-0.6 - - - - - - - - - - - - - - 0.1 0.416/16H R52402 0.08 0.25 0.03 0.015 0.30 - - - - 0.04-0.08 - - - - - - - - - - - - - - - - - - 0.1 0.417 R52252 0.08 0.18 0.03 0.015
33、 0.20 - - - - 0.04-0.08 - - - - - - - - - - - - - - - - - - 0.1 0.418 R56322 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 0.04-0.08 - - - - - - - - - - - - - - - - - - 0.1 0.4 26/26H R52404 0.08 0.25 0.03 0.015 0.30 - - - - - - 0.08-0.14 - - - - - - - - - - - - - - - - 0.1 0.427 R52254 0.08 0.18 0.03 0
34、.015 0.20 - - - - - - 0.08-0.14 - - - - - - - - - - - - - - - - 0.1 0.428 R56323 0.08 0.15 0.03 0.015 0.25 2.5-3.5 2.0-3.0 - - 0.08-0.14 - - - - - - - - - - - - - - - - 0.1 0.4 31 R53532 0.08 0.35 0.05 0.015 0.30 - - - - 0.04-0.08 - - - - - - - - 0.20-0.80 - - - - - - - - 0.1 0.4 33 R53442 0.08 0.25
35、 0.03 0.015 0.30 - - - - 0.01-0.02 0.02-0.04 0.35-0.55 - - 0.1-0.2 - - - - - - - - - - 0.1 0.434 R53445 0.08 0.35 0.05 0.015 0.30 - - - - 0.01-0.02 0.02-0.04 0.35-0.55 - - 0.1-0.2 - - - - - - - - - - 0.1 0.435 R56340 0.08 0.25 0.05 0.015 0.20-0.80 4.0-5.0 1.1-2.1 - - - - - - 1.5-2.5 - - - - - - - -
36、- - 0.20-0.40 0.1 0.436 R58450 0.04 0.16 0.03 0.015 0.03 - - - - - - - - - - - - - - - - - - 42.0-47.0 - - - - 0.1 0.437 R52815 0.08 0.25 0.03 0.015 0.30 1.0-2.0 - - - - - - - - - - - - - - - - - - - - - - 0.1 0.4B338173TABLE 1 ContinuedComposition, Weight PercentA,B,C,D,EGradeUNSNumberCarbon,max.Ox
37、ygenrangeor max.Nitrogen,max.Hydrogen,max.Ironrangeor max. Aluminum Vanadium Palladium Ruthenium Nickel Molybdenum Chromium Cobalt Zirconium Niobium Tin SiliconOtherElements,max.eachOtherElements,max.total38 R54250 0.08 0.20-0.30 0.03 0.015 1.2-1.8 3.5-4.5 2.0-3.0 - - - - - - - - - - - - - - - - - -
38、 - - 0.1 0.439 R53390 0.08 0.15 0.03 0.015 0.15-0.40 0.30-0.50 0.1 0.4A 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.B Final product hydrogen shall be reported. Ingot hydrogen n
39、eed not be reported. Lower hydrogen may be obtained by negotiation with the manufacturer.C Single values are maximum. The percentage of titanium is determined by difference.D Other elements need not be reported unless the concentration level is greater than 0.1 % each, or 0.4 % total. Other elements
40、 may not be added intentionally. Other elements may be present in titanium or titaniumalloys in small quantities and are inherent to the manufacturing process. In titanium these elements typically include aluminum, vanadium, tin, chromium, molybdenum, niobium, zirconium, hafnium, bismuth, ruthenium,
41、palladium, yttrium, copper, silicon, cobalt, tantalum, nickel, boron, manganese, and tungsten.E The purchaser may, in the written purchase order, request analysis for specific elements not listed in this specification.B338174NOTE 2Tube is available to specified outside diameter and wall thickness.Av
42、erage OD and wall are the standard. Maximum or minimum OD or wallshould be stated.4.2 Optional supplementary requirements are provided and, when one or more of these are desired, each shall be so stated inthe order.5. Materials and Manufacture5.1 Seamless tube shall be made from hollow billet by any
43、 cold reducing or cold drawing process that will yield a productmeeting the requirements of this specification. Seamless tube is produced with a continuous periphery in all stages ofmanufacturing operations.5.2 Welded tube shall be made from annealed, flat-rolled product by an automatic arc-welding
44、process or other method ofwelding that will yield a product meeting the tensile requirements found in Table 3 of this specification. Welded tubing shall beheat treated by at least a stress relief after forming and welding. Use of filler material is not permitted.TABLE 2 Permissible Variations in Pro
45、duct AnalysisElementElement%Maximum orSpecified RangePermissible Variationin Product AnalysisAluminum0.5 to 2.50.20Aluminum2.5 to 3.50.40Carbon0.10+0.02Chromium0.1 to 0.20.02Cobalt0.2 to 0.80.05Hydrogen0.015+0.002Iron0.80+0.15Iron1.2 to 1.80.20Molybdenum0.2 to 0.40.03Molybdenum1.5 to 4.50.20Nickel0.
46、3 to 0.90.05Niobium300.50Nitrogen0.05+0.02Oxygen 0.30+0.03Oxygen0.31 to 0.400.04Palladium0.01 to 0.020.002Palladium0.04 to 0.250.02Ruthenium0.02 to 0.040.005Ruthenium0.04 to 0.060.005Ruthenium0.08 to 0.140.01Silicon0.06 to 0.500.02Vanadium2.0 to 3.00.15ResidualsA (each)0.1+0.02A Aresidual is an elem
47、ent present in a metal or an alloy in small quantities inherentto the manufacturing process but not added intentionally. In titanium theseelements include aluminum, vanadium, tin, iron, chromium, molybdenum, niobium,zirconium, hafnium, bismuth, ruthenium, palladium, yttrium, copper, silicon, cobalt,
48、tantalum, nickel, boron, manganese, and tungsten.B338 1755.3 Welded/cold worked tube (WCS) shall be made from welded tube manufactured as specified in 5.2. The welded tube shallbe sufficiently cold worked to final size in order to transform the cast weld microstructure into a typical equiaxed microstructurein the weld upon subsequent heat
