ASTM_A_193_-_A_193M_-_17.pdf

Designation:A193/A193M17Standard Specification forAlloy-Steel and Stainless Steel Bolting for High Temperatureor High Pressure Service and Other Special PurposeApplications1This standard is issued under the fixed designation A193/A193M;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification2covers alloy and stainless steel bolt-ing materials and bolting components for pressure vessels,valves,flanges,and fittings for high temperature or highpressure service,or other special purpose applications.SeeSpecification A962/A962M for the definition of bolting.Barsand wire shall be hot-wrought and may be further processed bycenterless grinding or by cold drawing.Austenitic stainlesssteel may be carbide solution treated or carbide solution treatedand strain-hardened.When strain hardened austenitic stainlesssteel is ordered,the purchaser should take special care toensure that Appendix X1 is thoroughly understood.1.2 Several grades are covered,including ferritic steels andaustenitic stainless steels designated B5,B8,and so forth.Selection will depend upon design,service conditions,me-chanical properties,and high temperature characteristics.1.3 The following referenced general requirements are in-dispensable for application of this specification:SpecificationA962/A962M.NOTE1The committee formulating this specification has includedseveral steel types that have been rather extensively used for the presentpurpose.Other compositions will be considered for inclusion by thecommittee from time to time as the need becomes apparent.NOTE2For grades of alloy-steel bolting suitable for use at the lowerrange of high temperature applications,reference should be made toSpecification A354.NOTE3For grades of alloy-steel bolting suitable for use in lowtemperature applications,reference should be made to SpecificationA320/A320M.1.4 Nuts for use with bolting are covered in Section 13.1.5 Supplementary Requirements are provided for use at theoption of the purchaser.The supplementary requirements shallapply only when specified in the purchase order or contract.1.6 This specification is expressed in both inch-pound unitsand in SI units;however,unless the purchase order or contractspecifies the applicable M specification designation(SI units),the inch-pound units shall apply.1.7 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.1.8 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:3A153/A153M Specification for Zinc Coating(Hot-Dip)onIron and Steel HardwareA194/A194M Specification for Carbon Steel,Alloy Steel,and Stainless Steel Nuts for Bolts for High Pressure orHigh Temperature Service,or BothA320/A320M Specification for Alloy-Steel and StainlessSteel Bolting for Low-Temperature ServiceA354 Specification for Quenched and Tempered Alloy SteelBolts,Studs,and Other Externally Threaded FastenersA788/A788M Specification for Steel Forgings,General Re-quirements1This 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 Nov.15,2017.Published November 2017.Originallyapproved in 1936.Last previous edition approved in 2016 as A193/A193M 16.DOI:10.1520/A0193_A0193M-17.2For ASME Boiler and Pressure Vessel Code applications,see related Specifi-cation SA-193 in Section II of that 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.*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 theDevelop