1、Designation:A387/A387M17Used in USDOE-NE StandardsStandard Specification forPressure Vessel Plates,Alloy Steel,Chromium-Molybdenum1This standard is issued under the fixed designation A387/A387M;the number immediately following the designation indicates the yearof original adoption or,in the case of
2、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 specificat
3、ion2covers chromium-molybdenum alloysteel plates intended primarily for welded boilers and pressurevessels designed for elevated temperature service.1.2 Plates are available under this specification in severalgrades having different alloy contents as follows:NominalNominalChromiumMolybdenumGradeCont
4、ent,%Content,%20.500.50121.000.50111.250.5022,22L2.251.0021,21L3.001.0055.000.5099.001.00919.001.001.3 Each grade except Grades 21L,22L,and 91 is availablein two classes of tensile strength levels as defined in the TensileRequirements tables.Grades 21L and 22L are available only asClass 1.Grade 91 i
5、s available only as Class 2.NOTE1Grade 911,previously covered by this specification,is nowcovered by Specification A1017/A1017M.1.4 The maximum thickness of plates is limited only by thecapacity of the composition to meet the specified mechanicalproperty requirements.1.5 The values stated in either
6、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 nonconform
7、ance with this specifi-cation.1.6 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 Orga
8、nization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements for SteelPlates for Pressure VesselsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA435/A435M Specification for Straight-Beam Ultrason
9、icExamination of Steel PlatesA577/A577M Specification for Ultrasonic Angle-Beam Ex-amination of Steel PlatesA578/A578M Specification for Straight-Beam UltrasonicExamination of Rolled Steel Plates for Special Applica-tionsA1017/A1017M Specification for Pressure Vessel Plates,Alloy Steel,Chromium-Moly
10、bdenum-Tungsten2.2 AWS Specifications:4A5.5/A5.5M Low-Alloy Steel Electrodes for Shielded MetalArc WeldingA5.23/A5.23M Low-Alloy Steel Electrodes and Fluxes forSubmerged Arc WeldingA5.28/A5.28M Low-Alloy Steel Electrodes and Rods forGas Shielded Arc WeldingA5.29/A5.29M Low-Alloy Steel Electrodes for
11、 Flux CoredArc Welding3.General Requirements and Ordering Information3.1 Material supplied to this material specification shallconform to Specification A20/A20M.These requirements out-line the testing and retesting methods and procedures,permis-sible variations in dimensions and weight,quality and r
12、epair ofdefects,marking,loading,and ordering information.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.11 on Steel Plates for Boilers and Pressure Vessels.Current edition approved Ma
13、rch 15,2017.Published March 2017.Originallyapproved in 1955.Last previous edition approved in 2011 as A387/A387M 11.DOI:10.1520/A0387_A0387M-17.2For ASME Boiler and Pressure Vessel Code applications,see related Specifi-cation SA-387/SA-387M in Section II of that Code.3For referenced ASTM standards,v
14、isit 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.4Available from American Welding Society(AWS),550 NW LeJeune Rd.,Miami,FL 33126,http:/www.aws.org.
15、*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 establish
16、ed 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 3.2 Inadditiontothebasicrequirementsofthisspecification,certain supplementary requirements are availablewhen additional control,testing,or examination is required tomeet end use requirements.The purchaser is referred to thelisted supplementary requirements in this specification and tothe detailed requirements
