ASTM_A_860_-_A_860M_-_18.pdf

Designation:A860/A860M18Standard 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 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.1.Scope*1.1 This specification covers wrought high-strength ferriticsteel butt-welding fittings of seamless and electric fusion-welded construction.Dimensions of the fittings are provided inthe latest revisions of ASME B16.9 and MSS-SP-75.Butt-welding fittings differing from ASME B16.9 shall be furnishedin accordance with Supplementary Requirement S58 of Speci-fication A960/A960M.These fittings are for use in high-pressure gas and oil transmission 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 castings.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 valuesfrom 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.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2A751 Test Methods,Practices,and Terminology for Chemi-cal Analysis 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 of 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 requirements 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 any1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless 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 May 1,2018.Published May 2018.Originallyapproved in 1986.Last previous edition approved in 2014 as A860/A860M 14.DOI:10.1520/A0860_A0860M-18.2For 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 onthe 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:/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 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 supplementary 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 prevail.5.Materials and Manufacture5.1 The mate