ASTM_A_234_-_A_234M_-_02.pdf

Designation:A 234/A 234M 02Used in USDOE-NE StandardsAn American National StandardStandard Specification forPiping Fittings of Wrought Carbon Steel and Alloy Steel forModerate and High Temperature Service1This standard is issued under the fixed designationA 234/A 234M;the number immediately following the designation indicates the yearof 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.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification2covers wrought carbon steel andalloy steel fittings of seamless and welded construction coveredby the latest revision of ASME B16.9,B16.11,B16.28,MSSSP-79,and MSS SP-95.These fittings are for use in pressurepiping and in pressure vessel fabrication for service at moder-ate and elevated temperatures.Fittings differing from theseASME and MSS standards shall be furnished in accordancewith Supplementary Requirement S58 of Specification A 960.1.2 Optional supplementary requirements are provided forfittings where a greater degree of examination is desired.Whendesired,one or more of these supplementary requirements maybe specified in the order.1.3 This specification does not cover cast welding fittings orfittings machined from castings.Cast steel welding fittings aregoverned by Specifications A 216/A 216M and A 217/A 217M.1.4 This specification is expressed in both inch-pound unitsand in SI units.However,unless the order specifies theapplicable“M”specification designation(SI units),the mate-rial shall be furnished to inch-pound units.1.5 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem are not exact equivalents;therefore,each system mustbe used independently of the other.Combining values from thetwo systems may result in nonconformance with the specifi-cation.2.Referenced Documents2.1 In addition to those reference documents listed inSpecification A 960,the following list of standards apply tothis specification.2.2 ASTM Standards:A 216/A 216MSpecification for Steel Castings,Carbon,Suitable for Fusion Welding,for High-Temperature Ser-vice3A 217/A 217MSpecification for Steel Castings,Martensi-tic Stainless and Alloy,for Pressure-Containing PartsSuitable for High-Temperature Service3A 960 SpecificationforCommonRequirementsforWrought Steel Piping Fittings42.3ASME Standards:5B16.9 Steel Butt-Welding FittingsB16.11 Forged Steel Fittings,Socket Welding and ThreadedB16.28 Wrought Steel Butt-Welding Short Radius Elbowsand Returns2.4ASME Boiler and Pressure Vessel Code:5Section V Nondestructive ExaminationSection VIII,Division 1,Pressure VesselsSection IX Welding Qualifications2.5MSS Standards:6MSS SP-25 Standard Marking System for Valves,Fittings,Flanges,and UnionsMSS SP-79 Socket Welding Reducer InsertsMSS SP-95 Swage(d)Nipples and Bull Plugs2.6ASNT Standard:SNT-TC-1A(1984)Recommended Practice for Nondestruc-tive Testing Personnel Qualification and Certification73.Ordering Information3.1 See Specification A 960.4.General Requirements4.1 Product furnished to this specification shall conform tothe requirements of Specification A 960,including any supple-mentary requirements that are indicated in the purchase order.Failure to comply with the requirements of SpecificationA 9601This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel,and Related Alloys and is the direct responsibility of SubcommitteeA01.22 on Steel Forgings and Wrought Fittings for Piping Applications and BoltingMaterials for Piping and Special Purpose Applications.Current edition approved June 10,2002.Published July 2002.Originallypublished as A 234 40 T.Last previous edition A 234/A 234M 01a.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-234 in Section II of that Code.3Annual Book of ASTM Standards,Vol 01.02.4Annual Book of ASTM Standards,Vol 01.01.5Available from ASME International,Three Park Avenue,New York,NY100165990.6Available from Manufacturers Standardization Society of the Valve and FittingsIndustry,1815 N.Fort Myer Drive,Arlington,VA 22209.7Available from American Society for Nondestructive Testing,4153 ArlingatePlaza,Columbus,OH 43228-0518.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.constitutes non-conformance with this specification.In case ofa conflict between the requirements of this specification andSpecification A 960,this specification shall prevail.5.Materials5.1 The material for fittings shall consist of killed steel,forgings,bars,plates,seamless or fusion-welded tubular prod-ucts with filler metal added and shall conform to the chemicalrequirement