1、Designation:A1043/A1043M14Standard Specification forStructural Steel with Low Yield to Tensile Ratio for Use inBuildings1This standard is issued under the fixed designation A1043/A1043M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision
2、,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers two grades,36 250 and 50345 of rolled steel structural shapes and plates with low y
3、ieldto tensile ratio for use in building framing or for generalstructural purposes.1.2 All shape profiles with a flange width of 6 in.150 mmand greater described in Specification A6/A6M,AnnexA2,andplates up to and including 5 in.125 mm thick are included inthis specification.1.3 Supplementary requir
4、ements are provided for use whereadditional testing or additional restrictions are required by thepurchaser.Such requirements apply only when specified in thepurchase order.1.4 When the steel is to be welded,a welding proceduresuitable for the grade of steel and intended use or service is tobe utili
5、zed.See Appendix X3 of Specification A6/A6M forinformation on weldability.1.5 The text of this specification contains notes or footnotes,or both,that provide explanatory material;such notes andfootnotes,excluding those in tables and figures,do not containany mandatory requirements.1.6 The values sta
6、ted in either inch-pound units or SI unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem are not exact equivalents;therefore,each system is tobe used independently of the other without combining values inany way.2.Reference
7、d 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 ProductsA673/A673M Specification for Sampling Procedure for Im-pact Testing of Structural SteelA
8、770/A770M Specification for Through-Thickness TensionTesting of Steel Plates for Special Applications3.General Requirements for Delivery3.1 Product furnished under this specification shall conformto the requirements of the current edition of SpecificationA6/A6M for the ordered product,unless a confl
9、ict exists,inwhich case this specification shall prevail.4.Materials and Manufacture4.1 The steel shall be killed,and such shall be affirmed inthe test report by a statement of killed steel,a value of 0.10%or more for the silicon content,a value of 0.015%or more forthe total aluminum content,or a va
10、lue of 0.006%or more forthe titanium content.5.Chemical Composition5.1 The heat analysis shall conform to the requirementsgiven in Table 1.5.2 The steel shall conform on product analysis to therequirements given in Table 1,subject to the product analysistolerances in Specification A6/A6M.5.3 The max
11、imum permissible carbon equivalent valuesshall be:GradeThickness of Plateand Shape FlangeCE Value max%36 250All0.3750 345#2 in.50 mm0.4550 345 2 in.50 mm0.475.3.1 The carbon equivalent value shall be based upon heatanalysis.The required chemical analysis as well as the carbonequivalent shall be repo
12、rted.The carbon equivalent shall becalculated using the following formula:CE5 C1Mn!/61Cr1Mo1V!/51Ni1Cu!/15(1)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
13、Bridges,Buildings,Rolling Stock and Ships.Current edition approved Oct.1,2014.Published October 20014.Originallyapproved in 2005.Last previous edition approved in 2009 as A1043/A1043M 05(2009).DOI:10.1520/A1043_A1043M-14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact AS
14、TM 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
15、,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);6.Tensile Requirements6.1 The product as represented by the test specimens shallconform to the requirements for tensile properties given inTable 2.7.Charpy Impact Requirements7.1 Charpy V-notch tests shall be conducted in accor
16、dancewith Specification A673/A673M,frequency H.The test resultsfor full-size test specimens shall conform to the followingminimum average value for Grades 36 250 and 50 345:40 ftlbf54 J#at 70F21C#or a lower test temperature as specified in the purchase or-der.7.2 For shapes with a flange thickness equal to or greaterthan 112in.38.1 mm the test specimens shall be taken fromthe Alternate Core Location as defined in Specification A673/A673M.8.Keywords8.1 building framing;low yield to tensile ratio;
