1、Designation: B 363 06aStandard Specification forSeamless and Welded Unalloyed Titanium and TitaniumAlloy Welding Fittings1This standard is issued under the fixed designation B 363; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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. Scope1.1 This specification2covers
3、fittings intended for generalcorrosion-resisting and elevated-temperature services, factorymade from unalloyed titanium and titanium alloys. The termwelding fittings applies to butt-welding parts such as 45 and90 elbows, 180 returns, caps, tees, reducers, lap-joint stubends, and other types.1.2 This
4、 standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents
5、2.1 ASTM Standards:3B 265 Specification for Titanium and Titanium Alloy Strip,Sheet, and PlateB 338 Specification for Seamless and Welded Titanium andTitanium Alloy Tubes for Condensers and Heat Exchang-ersB 348 Specification for Titanium and Titanium Alloy Barsand BilletsB 367 Specification for Tit
6、anium and Titanium Alloy Cast-ingsB 381 Specification for Titanium and Titanium Alloy Forg-ingsB 600 Guide for Descaling and Cleaning Titanium andTitanium Alloy SurfacesB 861 Specification for Titanium and TitaniumAlloy Seam-less PipeB 862 Specification for Titanium and Titanium AlloyWelded Pipe2.2
7、ANSI Standards:4B16.9 Wrought Steel Butt-Welding FittingsB36.19 Stainless Steel Pipe2.3 Manufacturers Standardization Society of the Valveand Fittings Industry Standards:5SP-25 Standard Marking System for Valves, Fittings,Flanges and UnionsSP-43 Standard Practice for Light Weight Stainless SteelButt
8、-Welding Fittings2.4 ASME Standard:6ASME Boiler and Pressure Vessel Code, Sections VIII andIX3. Ordering Information3.1 Orders for material to this specification shall include thefollowing information as required:3.1.1 Quantity,3.1.2 Grade number,3.1.3 Pipe size and schedule,3.1.4 Method of manufact
9、ure and finish,3.1.5 Restrictive chemistry, if desired,3.1.6 Nondestructive tests,3.1.7 Packaging, and3.1.8 Inspection and required reports.4. Material4.1 The titanium for welding fittings may consist of billets,bars, plates, seamless or welded pipe or tube that conforms toall the requirements for m
10、anufacturing process, testing, chemi-cal composition, and mechanical properties prescribed inSpecifications B 861 and B 862 for the particular gradesreferred to in Table 1.1This specification is under the jurisdiction of ASTM Committee B10 onReactive and Refractory Metals and Alloys and is the direc
11、t responsibility ofSubcommittee B10.01 on Titanium.Current edition approved June 1, 2006. Published June 2006. Originallyapproved in 1961. Last previous edition approved in 2006 as B 363 06.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SB-363 in Section II of tha
12、t Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Available from American National Standards Institute
13、(ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.5Available from Manufacturers Standardization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602.6Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave.
14、, New York, NY 10016-5990.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Manufacture5.1 Forging, forming, or shaping operations may be per-formed by hammering, pressing, piercing, extruding, upsetting,rolling, bending, fusion wel
15、ding, or by a combination of two ormore of these operations. The forming procedure shall be soapplied that it will not produce injurious defects in the fittings.5.2 Fittings containing welded seams or other joints madeby fusion welding shall comply with the following provision:5.2.1 Welded by welder
16、s, welding operators, and weldingprocedures qualified under the provisions of Section IX of theASME Boiler and Pressure Vessel Code.NOTE 1Annealing of the unalloyed and alloyed grades of titaniumcovered by this specification is for the purpose of assuring uniformproperties.6. Chemical Composition6.1
17、 The titanium shall conform to the requirements as tochemical composition prescribed in the specifications referredto in Table 1.6.2 The chemical analysis of the components of the fittingsneed not be reported unless required by agreement between themanufacturer and the purchaser and so specified on
18、the order.7. Product Analysis7.1 Product analysis may be made by the purchaser fromone or more fittings in each lot.NOTE 2Definition of the term “lot” shall be as agreed upon betweenthe manufacturer and the purchaser.TABLE 1 Permissible Raw MaterialsGradeAProduct and ASTM DesignationPipe Tube Plate
19、Bar and Billet Casting ForgingWPT1 B 861/B 862 Grade 1 B 338 Grade 1 B 265 Grade 1 B 348 Grade 1 B 367 Grade C1 B 381 Grade F-1WPT2 B 861/B 862 Grade 2 B 338 Grade 2 B 265 Grade 2 B 348 Grade 2 B 367 Grade C2 B 381 Grade F-2WPT2H B 861/B 862 Grade 2H B 338 Grade 2H B 265 Grade 2H B 348 Grade 2H B 36
20、7 Grade C2 B 381 Grade F-2HWPT3 B 861/B 862 Grade 3 B 338 Grade 3 B 265 Grade 3 B 348 Grade 3 B 367 Grade C3 B 381 Grade F-3WPT7 B 861/B 862 Grade 7 B 338 Grade 7 B 265 Grade 7 B 348 Grade 7 B 367 Grade C7 B 381 Grade F-7WPT7H B 861/B 862 Grade 7H B 338 Grade 7H B 265 Grade 7H B 348 Grade 7H B 367 G
21、rade C7 B 381 Grade F-7HWPT9 B 861/B 862 Grade 9 B 338 Grade 9 B 265 Grade 9 B 348 Grade 9 . B 381 Grade F-9WPT11 B 861/B 862 Grade 11 B 338 Grade 11 B 265 Grade 11 B 348 Grade 11 B 367 Grade C11 B 381 Grade F-11WPT12 B 861/B 862 Grade 12 B 338 Grade 12 B 265 Grade 12 B 348 Grade 12 . B 381 Grade F-
22、12WPT13 B 861/B 862 Grade 13 B 338 Grade 13 B 265 Grade 13 B 348 Grade 13 . B 381 Grade F-13WPT14 B 861/B 862 Grade 14 B 338 Grade 14 B 265 Grade 14 B 348 Grade 14 . B 381 Grade F-14WPT15 B 861/B 862 Grade 15 B 338 Grade 15 B 265 Grade 15 B 348 Grade 15 . B 381 Grade F-15WPT16 B 861/B 862 Grade 16 B
23、 338 Grade 16 B 265 Grade 16 B 348 Grade 16 . B 381 Grade F-16WPT16H B 861/B 862 Grade 16H B 338 Grade 16H B 265 Grade 16H B 348 Grade 16H . B 381 Grade F-16HWPT17 B 861/B 862 Grade 17 B 338 Grade 17 B 265 Grade 17 B 348 Grade 17 . B 381 Grade F-17WPT18 B 861/B 862 Grade 18 B 338 Grade 18 B 265 Grad
24、e 18 B 348 Grade 18 . B 381 Grade F-18WPT19 B 861/B 862 Grade 19 . B 265 Grade 19 B 348 Grade 19 . B 381 Grade F-19WPT20 B 861/B 862 Grade 20 . B 265 Grade 20 B 348 Grade 20 . B 381 Grade F-20WPT21 B 861/B 862 Grade 21 . B 265 Grade 21 B 348 Grade 21 . B 381 Grade F-21WPT23 B 861/B 862 Grade 23 . B
25、265 Grade 23 B 348 Grade 23 . B 381 Grade F-23WPT24 B 861/B 862 Grade 24 . B 265 Grade 24 B 348 Grade 24 . B 381 Grade F-24WPT25 B 861/B 862 Grade 25 . B 265 Grade 25 B 348 Grade 25 . B 381 Grade F-25WPT26 B 861/B 862 Grade 26 B 338 Grade 26 B 265 Grade 26 B 348 Grade 26 . B 381 Grade F-26WPT26H B 8
26、61/B 862 Grade 26H B 338 Grade 26H B 265 Grade 26H B 348 Grade 26H . B 381 Grade F-26HWPT27 B 861/B 862 Grade 27 B 338 Grade 27 B 265 Grade 27 B 348 Grade 27 . B 381 Grade F-27WPT28 B 861/B 862 Grade 28 B 338 Grade 28 B 265 Grade 28 B 348 Grade 28 . B 381 Grade F-28WPT33 B 861/B 862 Grade 33 B 338 G
27、rade 33 B 265 Grade 33 B 348 Grade 33 . B 381 Grade F-33WPT34 B 861/B 862 Grade 34 B 338 Grade 34 B 265 Grade 34 B 348 Grade 34 . B 381 Grade F-34WPT35 B 861/B 862 Grade 35 B 338 Grade 35 B 265 Grade 35 B 348 Grade 35 . B 381 Grade F-35WPT36 B 861/B 862 Grade 36 B 338 Grade 36 B 265 Grade 36 B 348 G
28、rade 36 . B 381 Grade F-36WPT37 B 861/B 862 Grade 37 B 338 Grade 37 B 265 Grade 37 B 348 Grade 37 . B 381 Grade F-37WPT38 B 861/B 862 Grade 38 B 338 Grade 38 B 265 Grade 38 B 348 Grade 38 . B 381 Grade F-38AWhen fittings are of welded construction, the symbol shown shall be supplemented by the lette
29、r “W.”TABLE 2 Permissible Variations in Product AnalysisElementProduct Analysis Limits,max or Range, %Permissible Variationin Product AnalysisAluminum 0.5 to 2.5 60.20Aluminum 2.5 to 6.75 60.40Carbon 0.10 +0.02Chromium 0.1 to 0.2 60.02Chromium 5.5 to 6.5 60.30Hydrogen 0.02 +0.002Iron 0.80 +0.15Iron
30、1.2 to 1.8 60.20Molybdenum 0.2 to 0.4 60.03Molybdenum 1.5 to 4.5 60.20Molybdenum 14.0 to 16.0 60.50Nickel 0.3 to 0.9 60.05Niobium 2.2 to 3.2 60.15Niobium 30 60.50Nitrogen 0.05 +0.02Oxygen 0.30 +0.03Oxygen 0.31 to 0.40 60.04Palladium 0.01 to 0.02 60.002Palladium 0.04 to 0.08 60.005Palladium 0.12 to 0
31、.25 60.02Ruthenium 0.02 to 0.04 60.005Ruthenium 0.04 to 0.06 60.005Ruthenium 0.08 to 0.14 60.01Silicon 0.06 to 0.40 60.02Vanadium 2.0 to 4.5 60.15Vanadium 7.5 to 8.5 60.40Zirconium 3.5 to 4.5 60.20ResidualsA(each) 0.15 +0.02AA residual is an element present in a metal or alloy in small quantities an
32、d isinherent to 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,tantalum, nickel, boron, manganese, and tungsten.
33、Niobium value added editorially.B 363 06a27.2 Product analysis tolerances do not broaden the specifiedheat analysis requirements, but cover variations between dif-ferent laboratories in the measurement of chemical content.The manufacturer shall not ship material that is outside thelimits specified f
34、or the applicable grade. Product analysistolerances shall be as specified in Table 2.8. Tensile Properties8.1 The titanium shall conform to the requirements as totensile properties prescribed in the specifications referred to inTable 1.8.2 Tensile tests of the finished fittings need not be reportedu
35、nless required by agreement between the manufacturer andthe purchaser and so stated in the order.9. Workmanship, Finish and Appearance9.1 For fittings covered by ANSI B16.9 or SP-43,orforfittings to be used with pipe ordered toANSI B36.19, the sizes,shapes, and dimensions of the fittings shall be as
36、 specified inthose standards.9.2 The fittings shall have a workmanlike finish and shall befree of injurious external and internal imperfections of a naturethat will interfere with the purpose for which the fittings areintended. Minor defects may be removed by grinding, provid-ing the wall thickness
37、is not decreased to less than theminimum thickness, and further provided that the ground-outarea shall be faired out.10. Hydrostatic Tests10.1 All fittings shall be capable of withstanding withoutfailure, leakage, or impairment of their serviceability, a testpressure prescribed in the specifications
38、 for the pipe or tubingwith which the fitting is recommended to be used (see Table 1).10.2 Hydrostatic tests need not be performed or reported,unless required by agreement between the manufacturer andthe purchaser and so stated on the order.11. Inspection and Certification11.1 Inspection by the purc
39、haser prior to shipment shall bespecified in the purchase order.11.2 The manufacturer shall afford the inspector, withoutcharge, all reasonable facilities to satisfy him that the fittingsare being furnished in accordance with this specification. Anytests (except product analysis) and inspection agre
40、ed upon andso stated in the purchase order shall be made at the place ofmanufacture, unless otherwise specified, and shall be soconducted as not to interfere unnecessarily with the operationof the works.11.3 CertificationWhen specified in the order, the manu-facturer shall furnish the purchaser a ce
41、rtificate that the finishedfittings conform to the requirements of this specification.NOTE 3It is recognized that a sensitive surface inspection of thewelds or base metal, or both, is advisable for some services. SeeSupplementary Requirements.12. Rejection12.1 Material not conforming to this specifi
42、cation or toauthorized modifications shall be subject to rejection. Unlessotherwise specified, rejected material may be returned to themanufacturer at the manufacturers expense, unless the pur-chaser receives, within 3 weeks of notice of rejection, otherinstructions for disposition.13. Product Marki
43、ng13.1 The manufacturers name or trademark, the schedulenumber, material, and size shall be stamped (Note 4), stenciled,electroetched, or otherwise suitably marked on each fitting. Inaddition, each fitting shall be marked with the identificationsymbol and suffix for the respective specification list
44、ed inTable 1. On wall thicknesses thinner than Schedule 40S, nostamps or other indented markings shall be used. When the sizedoes not permit complete marking, identification marks may beomitted in the sequence shown in SP-25.NOTE 4When steel stamps are used, they should be applied prior toheat treat
45、ment and care should be taken so that the marking is not deepenough to cause cracks or to reduce the wall thickness of the fitting belowthe minimum allowed.14. Keywords14.1 fittings; seamless fittings; titanium; titanium alloy;welded fittingsSUPPLEMENTARY REQUIREMENTSSupplementary requirements shall
46、 not be considered unless specified in the order, in which event thetest shall be made by the manufacturer at the purchasers expense.S1. Surface InspectionS1. Liquid penetrant inspection may be performed on alloutside-diameter surfaces of the fittings and inside-diametersurfaces where practicable. A
47、n acceptance standard may beagreed upon between the manufacturer and the purchaser priorto the acceptance of the order.B 363 06a3S2. Radiographic Inspections of WeldsS2.1 Radiographic inspection may be performed on allweldments of the fittings in accordance with paragraph UW-51,Section VIII of the A
48、SME Boiler and Pressure Vessel Code.S3. Stress Relief Heat TreatmentS3.1 The stress-relieving treatment shall consist of holdingthe fitting at a minimum temperature of 1100F for not lessthan12 h/in. of thickness.S3.2 Minimum time at temperature is 15 min. All partsstress relieved shall be subsequent
49、ly cleaned and free of oxidescale contamination (see Guide B 600).S4. Certification of Material Incorporated in theManufacture of the FittingsS4.1 All material incorporated within the fitting shall bedocumented and shall be in accordance with the applicabledocuments in Table 1.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such right
