ASTM_A_541_-_A_541M_-_05_2015.pdf

Designation:A541/A541M05(Reapproved 2015)Standard Specification forQuenched and Tempered Carbon and Alloy Steel Forgingsfor Pressure Vessel Components1This standard is issued under the fixed designation A541/A541M;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.Scope1.1 This specification2covers requirements for quenchedand tempered carbon and alloy steel forgings for pressurevessel components.1.2 All grades are considered weldable under proper condi-tions.Welding technique is of fundamental importance,and itis presupposed that welding procedure and inspection will be inaccordance with approved methods for the grade of materialused.NOTE1Grades 1 and 1A have different chemistries but the samemechanical requirements.NOTE2Designations have been changed as follows:CurrentFormerlyGrade 1Class 1Grade 1AClass 1AGrade 1CClass 4Grade 2 Class 1Class 2Grade 2 Class 2Class 2AGrade 3 Class 1Class 3Grade 3 Class 2Class 3AGrade 4N Class 1Class 7Grade 4N Class 2Class 7AGrade 4N Class 3Class 7BGrade 5 Class 1Class 8Grade 5 Class 2Class 8AGrade 11 Class 4Class 11CGrade 22 Class 3Class 22BGrade 22 Class 4Class 22CGrade 22 Class 5Class 22DGrade 22VClass 22VGrade 3VClass 3V1.3 The values stated in either inch-pound units or SI(metric)units are to be regarded separately as the standard.Within the text and tables,the SI units are shown in brackets.The values stated in each system are not exact equivalents;therefore,each system must be used independently of the other.Combining values from the two systems may result in noncon-formance with the specification.1.4 Unless the order specifies the applicable“M”specifica-tion designation,the material shall be furnished to the inch-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 ProductsA388/A388M Practice for Ultrasonic Examination of SteelForgingsA788/A788M Specification for Steel Forgings,General Re-quirementsE208 Test Method for Conducting Drop-Weight Test toDetermine Nil-Ductility Transition Temperature of Fer-ritic Steels3.Ordering Information and General Requirements3.1 In addition to the ordering information required bySpecification A788/A788M,the purchaser shall include withthe inquiry and order a detailed drawing that locates areas ofsignificant loading in the forging(when required);the methodof selecting test locations(see 6.2);purchase option(if any)inaccordance with 9.1,and any supplementary requirementsdesired.3.2 Material supplied to this specification shall conform tothe requirements of Specification A788/A788M,which out-linesadditionalorderinginformation,manufacturingrequirements,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 requirements of Specification A788/A788M,therequirements of this specification shall prevail.1This 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.Current edition approved March 1,2015.Published March 2015.Originallyapproved in 1965.Last previous edition approved in 2010 as A541/A541M 05(2010).DOI:10.1520/A0541_A0541M-05R15.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-541/SA-541M 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Chemical Composition4.1 Heat AnalysisThe heat analysis obtained from sam-pling in accordance with Specification A788/A788M shallcomply with Table 1 except that the additional features ofSupplementary Requirements S8,S9,S10,S12,and S15 shallalso apply as individually specified in the ordering information.4.2 Product AnalysisThe manufacturer shall use the prod-uct analysis provision of Specification A788/A788M to obtaina product analysis from a forging representing each heat ormultiple heat.The permissible variations of Table 1 of Speci-fication A788/A788M do not apply to carbon,phosphorus,silicon,and sulphur for all classes,vanadium for Grade 1C,andcolumbium and calcium for Grades 22V and 3VCb.Boron isnot subject to product analysis.The purchaser may also makethis determination in accordance with Specification A788/A788M.5.Heat Treatment for Mechanical Properties5.1 After complete austenitiza