ASTM_A_673_-_A_673M_-_17.pdf

Designation:A673/A673M17American Association State Highwayand Transportation OfficialsStandard AASHTO No.:T 243Standard Specification forSampling Procedure for Impact Testing of Structural Steel1This standard is issued under the fixed designation A673/A673M;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 the procedure for CharpyV-notch testing of structural steel and contains two frequenciesof testing.The impact properties of steel can vary within thesame heat and piece,be it as-rolled,control-rolled,or heattreated.The purchaser should,therefore,be aware that testingof one plate,bar,or shape does not provide assurance all plates,bars,or shapes of the same heat as processed will be identicalin toughness with the product tested.Normalizing or quench-ing and tempering the product will reduce the degree ofvariation.1.2 This specification is intended to supplement specifica-tions for structural steel when so specified.1.3 This specification does not necessarily apply to allproduct specifications;therefore,the manufacturer or processorshould be consulted for energy absorption levels and minimumtesting temperatures that can be expected or supplied.1.4 Two frequencies of testing(P and H)are prescribed.1.5 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.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 Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2A6/A6M Specification for General Requirements for RolledStructural Steel Bars,Plates,Shapes,and Sheet PilingA370 Test Methods and Definitions for Mechanical Testingof Steel Products3.Ordering Information3.1 The inquiry and order shall indicate the following:3.1.1 Frequency of testing,(P)or(H),3.1.2 Test temperature(see 4.5 and 4.6),3.1.3 Minimum average absorbed energy value(see 4.1 and4.6),3.1.4 Transverse impact test orientation for plate widthsover 24 in.600 mm,if desired(see 4.2.2),3.1.5 Alternate core location(see 4.3),if applicable,and3.1.6 Condition(as-rolled,stress relieved,normalized,nor-malized and stress relieved,or quenched and tempered).4.Tests4.1 Impact testing shall be in accordance with Test Methodsand Definitions A370.An impact test shall consist of testingthree specimens taken from a single test coupon or testlocation,the average result of which shall be not less than theminimum average absorbed energy specified in the purchaseorder,which in no case shall be less than 7 ftlbf 10 J for fullsize specimens.4.2 Except as allowed by 4.3,specimens for plates and barsshall be taken from a location adjacent to the location specifiedfor the tension test specimen,and specimens for shapes shall betaken from a location at an end of the shape at a point one thirdthe distance from the outer edge of the flange or leg to the webor heel of the shape(see Fig.1 and Fig.2).For plates producedfrom coils,three impact tests shall be taken from the product ofeach coil or qualifying coil(see Section 5);one test couponshall be obtained from a location adjacent to the location1This 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 Nov.15,2017.Published November 2017.Originallyapproved in 1972.Last previous edition approved in 2012 as A673/A673M 07(2012).DOI:10.1520/A0673_A0673M-17.2For 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 StatesThis international standard was developed in accordance 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 t