1、Designation:A389/A389M13Standard Specification forSteel Castings,Alloy,Specially Heat-Treated,for Pressure-Containing Parts,Suitable for High-Temperature Service1This standard is issued under the fixed designation A389/A389M;the number immediately following the designation indicates the yearof origi
2、nal 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 Defe
3、nse.1.Scope*1.1 This specification covers alloy steel castings,whichhave been subjected to special heat treatment,for valves,flanges,fittings,and other pressure-containing parts(Note 1)intended primarily for high-temperature service.1.2 The high-temperature properties of the materials cov-ered in th
4、is specification are dependent upon special heattreatment that is required.Although the high-temperatureproperties are not specified,they are implied by control ofchemistry,heat treatment,and room-temperature properties.1.3 Two grades of ferritic alloy steel are covered(Note 2).Selection will depend
5、 on the design and service conditions,mechanical properties,and high-temperature characteristics.NOTE1Carbon steel castings for pressure-containing parts are cov-ered by Specification A216/A216M.Alloy steel castings are covered bySpecification A217/A217M.NOTE2The grades covered by this specification
6、 represent materialsthat are generally suitable for assembly with other castings or wroughtsteel parts by fusion welding.It is not intended to imply that these gradespossess equal degrees of weldability;therefore,it is the responsibility ofthe purchaser to establish for himself a suitable welding te
7、chnique.Sincethese grades possess varying degrees of suitability for resistance tooxidation and for high-temperature service,it is also the responsibility ofthe purchaser to determine which grade shall be furnished,due consider-ation being given to the requirements of the applicable construction cod
8、es.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith t
9、he standard.2.Referenced Documents2.1 ASTM Standards:2A216/A216M Specification for Steel Castings,Carbon,Suit-able for Fusion Welding,for High-Temperature ServiceA217/A217M Specification for Steel Castings,MartensiticStainless and Alloy,for Pressure-Containing Parts,Suit-able for High-Temperature Se
10、rviceA488/A488M Practice for Steel Castings,Welding,Qualifi-cations of Procedures and PersonnelA703/A703M Specification for Steel Castings,GeneralRequirements,for Pressure-Containing PartsA985/A985M Specification for Steel Investment CastingsGeneral Requirements,for Pressure-Containing Parts2.2 Manu
11、facturers Standardization Society of the Valve andFittings Industry Standard:SP-55 Quality Standard for Steel Castings for Valves,Flanges,and Fittings and other Components(VisualMethod)33.General Conditions for Delivery3.1 Except for steel investment castings,material furnishedto this specification
12、shall conform to the requirements ofSpecification A703/A703M,including any supplementary re-quirements that are indicated in the purchase order.Failure tocomply with the general requirements of A703/A703M consti-tutes nonconformance with the specification.In case of conflictbetween the requirements
13、of this specification and A703/A703M,this specification shall prevail.3.2 Steel investment castings furnished to this specificationshall conform to the requirements of Specification A985/1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloysan
14、d is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved Oct.1,2013.Published October 2013.Originallyapproved in 1955.Last previous edition approved in 2010 as A389/A389M 10.DOI:10.1520/A0389_A0389M-13.2For referenced ASTM standards,visit the ASTM website,www.astm.or
15、g,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 Manufacturers Standardization Society of the Valve and FittingsIndustry(MSS),127 Park St.,NE,Vienna,VA22180-4602,ht
16、tp:/www.mss-hq.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 States1 A985M,including any supplementary requirements that areindicated in the purchase order.Failure to comply with thegeneral requirements of Specification A985/A985M consti-tutes nonconformance with this specification.In case of con-flict between the requirements of this specification and Speci-fication A985/
