1、Designation:A372/A372M16Standard Specification forCarbon and Alloy Steel Forgings for Thin-Walled PressureVessels1This standard is issued under the fixed designation A372/A372M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year
2、 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 specification2covers relatively thin-walled forg-ings(including gas bottles)for pressure vessel use.Three typeso
3、f carbon steel and six types of alloy steel are included.Provision is made for integrally forging the ends of vesselbodies made from seamless pipe or tubing.NOTE1When working to the chemical and tensile requirements ofthis specification,the influence of wall thickness and cooling rate willnecessaril
4、y eliminate certain forging sizes in each class.NOTE2Designations have been changed as follows:CurrentFormerlyGrade AType IGrade BType IIGrade CType IIIGrade DType IVGrade E Class 55Type V Grade 1 Class 55Grade E Class 65Type V Grade 1 Class 65Grade E Class 70Type V Grade 1 Class 70Grade F Class 55T
5、ype V Grade 2 Class 55Grade F Class 65Type V Grade 2 Class 65Grade F Class 70Type V Grade 2 Class 70Grade G Class 55Type V Grade 3 Class 55Grade G Class 65Type V Grade 3 Class 65Grade G Class 70Type V Grade 3 Class 70Grade H Class 55Type V Grade 4 Class 55Grade H Class 65Type V Grade 4 Class 65Grade
6、 H Class 70Type V Grade 4 Class 70Grade J Class 55Type V Grade 5 Class 55Grade J Class 65Type V Grade 5 Class 65Grade J Class 70Type V Grade 5 Class 70Grade KType VIGrade LType VIIGrade J Class 110Type VIIIGrade M Class 85Type IX Class AGrade M Class 100Type IX Class B1.2 The values stated in either
7、 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 the standard.1.3 Unless the order s
8、pecifies the applicable“M”specifica-tion designation(SI units),the material shall be furnished toinch-pound units.2.Referenced Documents2.1 ASTM Standards:3A275/A275M Practice for Magnetic Particle Examination ofSteel ForgingsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA
9、388/A388M Practice for Ultrasonic Examination of SteelForgingsA530/A530M Specification for General Requirements forSpecialized Carbon and Alloy Steel PipeA788/A788M Specification for Steel Forgings,General Re-quirementsE112 Test Methods for Determining Average Grain SizeE165/E165M Practice for Liqui
10、d Penetrant Examination forGeneral IndustryE290 Test Methods for Bend Testing of Material for Ductil-ityE433 Reference Photographs for Liquid Penetrant Inspec-tion2.2 ASME Standard:ASME Boiler and Pressure Vessel Code43.Ordering Information and General Requirements3.1 In addition to the ordering inf
11、ormation required bySpecification A788/A788M,the purchaser shall include withthe inquiry and order a detailed drawing,sketch,or writtendescription of the forging and the areas of significant loading inthe forging when required(see 6.4.2.2).3.2 Material supplied to this specification shall conform to
12、the requirements of Specification A788/A788M,which out-linesadditionalorderinginformation,manufacturing1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.06 on Steel Forgings and Billets.
13、Current edition approved Dec.1,2016.Published January 2017.Originallypublished in 1953.Last previous edition approved in 2015 as A372/A372M 15.DOI:10.1520/A0372_A0372M-16.2For ASME Boiler and Pressure Vessel Code applications,see related Specifi-cation SA-372/SA-372M in Section II of that code.3For
14、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.4Available from American Society of Mechanical Engineers(ASME),ASMEInte
15、rnational Headquarters,Two Park Ave.,New York,NY 10016-5990,http:/www.asme.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 acc
16、ordance 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 requirements,testing and retesting methods and procedures,marking,certification,product analysis variations,and addi-tional supplementary requirements.3.3 If the requirements of this specification are in conflictwith the requirement
