1、Designation:A1039/A1039M13Standard Specification forSteel,Sheet,Hot Rolled,Carbon,Commercial,Structural,and High-Strength Low-Alloy,Produced by Twin-RollCasting Process1This standard is issued under the fixed designation A1039/A1039M;the number immediately following the designation indicates theyear
2、 of original adoption or,in the case of revision,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 commercial and structuralsteel shee
3、t in coils and cut lengths produced by the twin-rollcasting process.1.2 The steel sheet is available in the designations listed inSection 4.1.3 The material is available in the following sizes:Thickness0.027 in.0.7 mm to 0.078 in.2.0 mmWidthup to 79 in.2000 mm1.4 The values stated in either SI units
4、 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.NOTE1A description of the Twin-
5、Roll Casting Process is included inAppendix X1.2.Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA568/A568M Specification for Steel,Sheet,Carbon,Structural,and High-Strength,Low-Alloy,Hot-Rolled andCold-Rolled,General Requirements forA
6、941 Terminology Relating to Steel,Stainless Steel,RelatedAlloys,and Ferroalloys3.Terminology3.1 DefinitionsFor definitions of other terms used in thisspecification refer to Terminology A941.3.2 Definitions of Terms Specific to This Standard:3.2.1 twin roll casting process,nproduction of steel sheetd
7、irectly from liquid metal.3.2.1.1 DiscussionThe properties of the steel sheet are theresult of the control of the casting conditions,and in somecases,through a combination of the casting process and hotrolling of the sheet.4.Classification4.1 Twin-roll cast steel sheet is available in the followingd
8、esignations:4.1.1 Commercial steel(CS Types A,B,and D),4.1.2 Drawing steel(DS Types A,B,and D),4.1.3 Structural steel(SS Grades 30 205,33 230,36250 Types 1 and 2,40 275,45 305,50 340,55 380,60410,70 480,and 80 550),and4.1.4 High-Strength Low-Alloy steel(HSLAS,classes 1and 2 in grades 45 310,50 340,5
9、5 380,60 410,65450,70 480 and 80 550.5.Ordering Information5.1 It is the purchasers responsibility to specify in thepurchase order all ordering information necessary to describethe required material.Examples of such information include,but are not limited to,the following:5.1.1 ASTM specification nu
10、mber and year of issue,5.1.2 Name of material and designation(direct cast or hotrolled sheet)(include grade and class,and limits for Cu,Ni,Cr,and Mo as appropriate,for CS,DS,SS,and HSLAS)(see 4.1),5.1.2.1 When a type is not specified for CS,Type B will befurnished,5.1.2.2 When a type is not specifie
11、d for DS,Type B will befurnished,5.1.2.3 When a class for HSLAS is not specified,Class 1will be furnished.5.1.2.4 When limits for Cu,Ni,Cr,and Mo are notspecified,limit H(see Table 1)will be furnished.5.1.3 Finish(see 9.1),5.1.4 Type of edge(see 9.3),5.1.5 Oiled or not oiled,as required(see 9.2),1Th
12、is specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.19 on Steel Sheet and Strip.Current edition approved Feb.1,2013.Published February 2013.Originallyapproved in 2004.Last previous edition ap
13、proved in 2012 as A1039/A1039M 12.DOI:10.1520/A1039_A1039M-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 S
14、ummary 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);5.1.6 Dimensions(thickness,width,and whether cut lengthsor coils),5.1.7 Coil size(insi
15、de diameter,outside diameter,and maxi-mum weight),5.1.8 Copper bearing steel,(if required),5.1.9 Quantity,5.1.10 Application(part identification and description),5.1.11 A report of heat analysis will be supplied,ifrequested,for CS or DS.For materials with required mechani-cal properties,SS or HSLAS,
16、a report is required of heatanalysis and mechanical properties as determined by thetension test,and5.1.12 Special requirements(if any).TABLE 1 Chemical RequirementsA,Bfor Twin Roll Cast Hot Rolled Steel Sheet Designations SS and HSLASDesignation%Heat Analysis,Element Maximum Unless Otherwise ShownCMnPSAlCSiCVCbTiNSS:DGrade 302050.250.900.0350.04.0.0080.0080.008.Grade 332300.250.900.0350.04.0.0080.0080.008.Grade 36250 Type 10.251.350.0350.04.0.0080.0080.008.Grade 36250 Type 20.251.350.0350.04.0.0