1、Designation:A860/A860M14Standard Specification forWrought High-Strength Ferritic Steel Butt-Welding Fittings1This standard is issued under the fixed designation A860/A860M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of l
2、ast revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers wrought high-strength ferriticsteel butt-welding fittings of seamless and electric fusion-welded
3、 construction covered by the latest revisions of ASMEB16.9 and MSS-SP-75.Butt-welding fittings differing fromthese ASME and MSS standards shall be furnished in accor-dance with Supplementary Requirement S58 of SpecificationA960/A960M.These fittings are for use in high-pressure gasand oil transmissio
4、n and distribution systems.1.2 Optional supplementary requirements are provided forfittings when a greater degree of examination is desired.One ormore of the supplementary requirements may be specified inthe order.1.3 This specification does not cover cast-welding fittings orfittings machined from c
5、astings.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem may not be exact equivalents;therefore,each systemshall be used independently of the other.Combining valuesf
6、rom the two systems may result in non-conformance with thestandard.Unless the order specifies the applicable“M”speci-fication designation(SI units),the material shall be furnishedto inch-pound units.2.Referenced Documents2.1 ASTM Standards:2A751 Test Methods,Practices,and Terminology for Chemi-cal A
7、nalysis of Steel ProductsA960/A960M Specification for Common Requirements forWrought Steel Piping Fittings2.2 ASME Standards:3B16.9 Steel Butt-Welding Fittings2.3 ASME Boiler and Pressure Vessel Code:3Section VSection VIII Division 1Section IX2.4 MSS Standards:4MSS SP-25The Standard Marking System o
8、f Valves,Fittings,Flanges and UnionsMSS-SP-75 Specification for High Test Wrought Butt-Welding Fittings2.5 American Society of Nondestructive Testing:5SNT-TC-1A Recommended Practice for NondestructiveTesting Personnel Qualification and Certification3.Ordering Information3.1 In addition to the requir
9、ements of Specification A960/A960M,the following ordering information applies:3.1.1 Grade Symbol,3.1.2 Requirements for certification of test report.4.General Requirements4.1 Product furnished to this specification shall conform tothe requirements of Specification A960/A960M,including anysupplementa
10、ry requirements that are indicated in the purchaseorder.Failure to comply with the general requirements ofSpecification A960/A960M constitutes nonconformance withthis specification.In case of conflict between the requirementsof this specification and Specification A960/A960M,thisspecification shall
11、prevail.5.Materials and Manufacture5.1 The material for fittings shall be fully killed fine-grainmaterial made by a melting process that is intended to producerounded,well dispersed,fine sulphide inclusions,that promote1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stai
12、nless Steel and Related Alloysand 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 Oct.1,2014.Published October 2014.Originallyapproved in 1986.L
13、ast previous edition approved in 2013 as A860/A860M13.DOI:10.1520/A0860_A0860M-14.2For 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 ont
14、he ASTM website.3Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Two Park Ave.,New York,NY 10016-5990,http:/www.asme.org.4Available from Manufacturers Standardization Society of the Valve and FittingsIndustry(MSS),127 Park St.,NE,Vienna,VA 22180-4602,http
15、:/www.mss-.5Available fromAmerican Society for Nondestructive Testing(ASNT),P.O.Box28518,1711 Arlingate Ln.,Columbus,OH 43228-0518,http:/www.asnt.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 1
16、9428-2959.United States1Copyright by ASTM Intl(all rights reserved);good notch toughness,assists in the resistance to hydrogeninduced cracking,and for weldability suitable for field weld-ing.5.2 Starting materials shall consist of plate,sheet,forgings,forging quality bar,and seamless or fusion-welded tubularproducts with filler metal added.The chemical compositionshall conform to Table 1.5.3 Astarting material that specifically requires the additionof any element beyond those listed in Table 1 i
