ASTM_A_827_-_A_827M_-_14.pdf

Designation:A827/A827M14Standard Specification forPlates,Carbon Steel,for Forging and Similar Applications1This standard is issued under the fixed designation A827/A827M;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 specification covers carbon steel plates,forgingquality,intended for forging,quenching-and-tempering,andsimilar applications in which uniformity of composition andfreedom from injurious imperfections are important.1.2 The plates are available in six grades,or chemicalcompositions.1.3 When the steel is to be welded,it is presupposed that awelding procedure suitable for the grade of steel and intendeduse or service will be utilized.See Appendix X3 of Specifica-tion A6/A6M for information on weldability.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 the standard.2.Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars,Plates,Shapes,and Sheet Piling2.2 ASME Code:3ASME Boiler and Pressure Vessel Code,Section IX3.General Requirements and Ordering Information3.1 Material furnished under this specification shall con-form to the requirements of the current edition of SpecificationA6/A6M,for the ordered material,unless a conflict exists inwhich case this specification shall prevail.4.Materials and Manufacture4.1 The steel shall be killed.5.Chemical Composition5.1 The heat analysis shall conform to the requirements forthe applicable grade listed in Table 1.6.Mechanical Property Requirements6.1 The plates shall not be subject to mechanical propertytesting unless otherwise specified on the order.7.Quality7.1 GeneralThe plates shall be free of injurious imperfec-tions and shall have a workmanlike finish.7.2 FinishThe plates shall be furnished with a finish suchas that produced by hot-rolling,except for ground areasresulting from conditioning operations,unless otherwise speci-fied on the order.7.3 Surface Imperfections:7.3.1 All injurious surface imperfections shall be removedby the material manufacturer or processor.7.3.1.1 Shallow imperfections shall be ground to soundmetal;the ground area shall be well-faired and the thickness ofthe ground plate shall not be reduced below the minimumthickness permitted.7.3.1.2 All surface imperfections,the removal of which willreduce the plate thickness below the minimum permitted,shallbe cause for rejection;however,such imperfections may berepaired by welding as provided in 7.5.7.4 Edge Imperfections:7.4.1 Laminar-type discontinuities 1 in.25 mm and less inlength,and visible to the unaided eye on the edges of plates asprepared for shipment by the manufacturer or processor,areacceptable and do not require exploration.7.4.2 All larger discontinuities shall be explored to deter-mine their depth and extent.Discontinuities shall be consideredcontinuous when located in the same plane within 5%of theplate thickness and when separated by a distance less than thelength of the smaller of two adjacent discontinuities.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.02 on Structural Steel for Bridges,Buildings,Rolling Stock and Ships.Current edition approved May 1,2014.Published May 2014.Originallyapproved in 1984.Last previous edition approved in 2011 as A827/A827M 11.DOI:10.1520/A0827_A0827M-14.2For 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.3Available from American Society of Mechanical Engineers(ASME),ASMEInternational 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 States1Copyright by ASTM Intl(all rights reserved);7.4.3 Indications visible to the unaided eye,on the cut edgesof a plate as prepared for shipment by the manufacturer orprocessor shall not exceed the limits given in Columns 1 and 2of Table 2.7.4.4 Larger indications shall be removed by the manufac-turer or processor by grinding provided the resultant cavitydoes not exceed the limits given in Columns 3 and 4 of Table2.7.4.5 Indications of greater magnitude shall be cause forrejection;howeve