ASTM_A_656_-_A_656M_-_13.pdf

Designation:A656/A656M13Standard Specification forHot-Rolled Structural Steel,High-Strength Low-Alloy Platewith Improved Formability1This standard is issued under the fixed designation A656/A656M;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.Scope*1.1 This specification covers three types and five strengthgrades of high-strength low-alloy,hot rolled structural steelplate for use in truck frames,brackets,crane booms,rail cars,and similar applications.Steels that conform to this specifica-tion offer improved formability.These steels are normallyfurnished in the as-rolled condition.The type and strengthgrade furnished is as agreed upon between the manufacturerand the purchaser.The types and strength grades are shown inthe tables.1.2 The maximum thickness of plates shall be as follows:GradePlate Thickness,max,in.mm502 506011240701 25801 2510012131.3 The values stated in either inch-pound units or SI unitsare to be regarded as standard.Within the text,the SI units areshown in brackets.The values stated in each system are notexact equivalents;therefore,each system must be used inde-pendently of the other.Combining values from the two systemsmay result in nonconformance with this specification.SeeAppendix X3 of Specification A6/A6M for information onweldability.1.4 For plates produced from coil and furnished withoutheat treatment or with stress relieving only,the additionalrequirements,including additional testing requirements and thereporting of additional test results,of Specification A6/A6Mapply.2.Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars,Plates,Shapes,and Sheet Piling3.General Requirements for Delivery3.1 Plates furnished under this specification shall conformto the requirements of the current edition of SpecificationA6/A6M,for the specific plate ordered,unless a conflict exists,in which case this specification shall prevail.3.2 Coils are excluded from qualification to this specifica-tion until they are processed into finished plates.Platesproduced from coil means plates that have been cut toindividual lengths from a coil.The processor directly controls,or is responsible for,the operations involved in the processingof a coil into finished plates.Such operations include decoiling,leveling,cutting to length,testing,inspection,conditioning,heat treatment(if applicable),packaging,marking,loading forshipment,and certification.NOTE1For plates produced from coil and furnished without heattreatment or with stress relieving only,two test results are to be reportedfor each qualifying coil.Additional requirements regarding plate producedfrom coil are described in Specification A6/A6M.4.Materials and Manufacture4.1 The steel shall be made to fine grain practice.5.Chemical Composition5.1 Heat analyses shall conform to the chemical require-ments given in Table 1.Dependent upon thickness,grade,andintended application,variations in the chemical compositionare permitted within the limits given in Table 1 for theapplicable type.Where it is of particular importance,themanufacturer should be consulted for specific chemical com-position.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 Oct.15,2013.Published November 2013.Originallyapproved in 1972.Last previous edition approved in 2012 as A656/A656M 12a1.DOI:10.1520/A0656_A0656M-13.2For 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.*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);5.2 Product AnalysisIf a product analysis is made,it shallconform to the requirements given in Table 1,subject to theproduct analysis tolerances of Specification A6/A6M.5.3 Where steel is to be welded,it is presupposed that awelding procedure suitable for the grade of steel and intendeduse or service will be utilized.5.4 Unless specifically ordered,the type is at the discretionof the producer.6.Tension Test6.1 The plates as represented by the test specimens shallconform to the requirements given in Table 2.7.Keywords7.1 high-strength low-alloy steel;steel plates;structuralapplicationsSUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A656/A656M 12a1)that may impact the u