1、Designation: A635/A635M 09bStandard Specification forSteel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled,Alloy, Carbon, Structural, High-Strength Low-Alloy, andHigh-Strength Low-Alloy with Improved Formability, GeneralRequirements for1This standard is issued under the fixed designation A635/A6
2、35M; 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 reappro
3、val.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers the general requirements forhot-rolled, heavy-thickness sheet and strip in coils.1.2 It applies to Specifications A414/A414M, A424/A424M, and A1018/A1018M.1.3 This material is
4、available only in coils described asfollows:Size Limits, Coils OnlyProduct Width, in. mm Thickness, in. mmStrip over 8 to 12, inclover 200 through 3000.230 to 1.000, inclfrom 6.0 through 25Sheet All WidthsAAll Widths0.230 to 1.000, inclfrom 6.0 through 25AHot-rolled heavy thickness sheet in coils le
5、ss than 12 in. 300 mm and less inwidth must have slit edges. Hot-rolled heavy thickness coils 12 in. 300 mm andwider with mill edge is considered hot-rolled heavy thickness strip.NOTE 1The changes in width limits with the publication of A635/A635M 06a result in a change in tensile testing direction
6、for materialfrom 0.180 in. 4.5 mm to 0.230 in. exclusive 6.0 mm exclusive over 48in. 1200 mm wide as that material is now covered by SpecificationA568/A568M 06a. The purchaser is advised to discuss this change withthe supplier.1.4 In case of any conflict in requirements, the requirementsof the indiv
7、idual material specification shall prevail over thoseof this general specification.1.5 Annex A1 lists permissible variations in dimensions andmass (see Note 2) in SI metric units. The values listed are notexact conversions of the values listed in the inch-pound tables,but instead are rounded or rati
8、onalized values. Conformance toAnnex A1 is mandatory when the “M” specification is used.NOTE 2The term weight is used when inch-pound units are thestandard. However, under SI, the preferred term is mass.1.6 The values stated in either SI units or inch-pound unitsare to be regarded separately as stan
9、dard. 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.1.7 This specification and the applicable material specifica-tions are expressed in
10、both inch-pound units and SI units.However, unless the order specifies the applicable “M” speci-fication designation (SI units), the material shall be furnishedto inch-pound units.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA414
11、/A414M Specification for Steel, Sheet, Carbon, forPressure VesselsA424/A424M Specification for Steel, Sheet, for PorcelainEnamelingA700 Practices for Packaging, Marking, and Loading Meth-ods for Steel Products for ShipmentA568/A568M Specification for Steel, Sheet, Carbon, Struc-tural, and High-Stren
12、gth, Low-Alloy, Hot-Rolled andCold-Rolled, General Requirements forA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsA941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and FerroalloysA1018/A1018M Specification for Steel, Sheet and Strip,Heavy-Th
13、ickness Coils, Hot-Rolled, Carbon, Commercial,1This 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 Nov. 1, 2009. Published December 2009
14、. Originallyapproved in 1970. Last previous edition approved in 2009 as A635/A635M 09a.DOI: 10.1520/A0635_A0635M-09B.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
15、 the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Drawing, Structural, High-Strength Low-Alloy, High-Strength Low
16、-Alloy with Improved Formability, andUltra-High StrengthA1031 Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and StructuralSteel, Hot-RolledE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE29 Practice for Using Significant Digits in Test Data to
17、Determine Conformance with Specifications2.2 Federal Standards:3Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.3 Military Standards:3MIL-STD-129 Marking for Shipment and Storage3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Steel Types:3.1.2 carbon steelthe designat
18、ion for steel when no mini-mum content is specified or required for aluminum, chromium,cobalt, columbium, molybdenum, nickel, titanium, tungsten,vanadium, zirconium, or any element added to obtain a desiredalloying effect; when the specified minimum for copper doesnot exceed 0.40 %; or when the maxi
19、mum content specified forany of the following elements does not exceed the percentagesnoted: manganese 1.65, silicon 0.60, or copper 0.60.3.1.2.1 DiscussionIn all carbon steels small quantities ofcertain residual elements unavoidably retained from raw ma-terials are sometimes found which are not spe
20、cified or required,such as copper, nickel, molybdenum, chromium, etc. Theseelements are considered as incidental and are not normallydetermined or reported.3.1.3 high-strength, low-alloy steela specific group ofsteels in which higher strength, and in some cases additionalresistance to atmospheric co
21、rrosion or improved formability,are obtained by moderate amounts of one or more alloyingelements.3.2 Product Types:3.3 hot-rolled sheet and stripmanufactured by hot rollingslabs in a continuous mill to the required thickness; however,the product classification of sheet and strip is based on acombina
22、tion of thickness and width (see Specification A414/A414M, A424/A424M, and A1018/A1018M).3.4 steel manufacturer, nthe organization that directlycontrols, or is responsible for, the melting and refining of steeland the conversion of that steel into semifinished steel productsknown as slabs either thr
23、ough continuous casting, conventionalor compact, or ingot casting and subsequent conversion of theingots to slabs, and for one or more additional operations suchas testing, marking, loading for shipment, and certification.3.5 hot roll manufacturer, nthe organization that directlycontrols, or is resp
24、onsible for, the conversion of steel slabs, byhot rolling into coils, and for one or more additional operationssuch as leveling, cutting to length, testing, inspection, blank-ing, slitting, pickling, cold rolling, heat treating, coating,packaging, marking, loading for shipment, and certification.3.6
25、 coil processor, nthe organization that directly con-trols, or is responsible for, operations involved in processingthe coil such as leveling, cutting to length, testing, inspection,blanking, slitting, pickling, cold rolling, heat treating, coating,packaging, marking, loading for shipment, and certi
26、fication.3.6.1 DiscussionThe processing operations need not becontrolled by the organization that hot rolls the slab into a coil.If only one organization controls or is responsible (or both) forthe hot rolling and processing operations, that organization istermed the hot roll manufacturer. If more t
27、han one organizationcontrols or is responsible (or both) for hot rolling and process-ing operations, the organization that controls and is responsiblefor the hot rolling is termed the manufacturer and the organi-zation or organizations controlling and responsible for theprocessing operations is/are
28、termed the coil processor or coilprocessors.3.7 Refer to Terminology A941 for additional definitions ofterms used in this standard.4. Index of Tables, Dimensions, and Allowances4.1 See the following table.Index of Tables for Dimensions, Tolerances, and AllowancesDimensions Table No.Inch-PoundUnitsSI
29、 UnitsCamberSheet 5 A1.4Strip 9 A1.8CrownStrip 7 A1.6ThicknessSheet 2, S1.1 A1.1, S1.3Strip 6, S1.2 A1.5, S1.4WidthSheet 3, 4 A1.2, A1.3Strip 8 A1.75. Materials and Manufacture5.1 Melting PracticeHot-rolled heavy thickness sheet andstrip coils are normally produced from rimmed, capped, orsemi-killed
30、 steel. If either coarse or fine-grain practice isspecified, special soundness steel will be furnished.5.2 Steel may be produced as ingot-cast or strand-cast.When different grades of strand-cast steel are sequentially cast,identification and separation of the transition material isrequired.5.3 The s
31、teel shall be in the hot-rolled condition.6. Chemical Composition6.1 Cast or Heat (Formerly Ladle) AnalysisAn analysisof each heat or cast shall be made by the steel manufacturer todetermine the conformance with the appropriate requirement.The analysis shall be from a test sample preferably takendur
32、ing the pouring of the heat or cast.6.1.1 Where the material is used for fabrication by welding,care must be exercised in selection of chemical composition ormechanical properties to assure compatibility with the weldingprocess and its effect on altering the properties.6.2 Product, Check, or Verific
33、ation Analysis:3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.A635/A635M 09b26.2.1 Non-killed steels such as capped or rimmed steels arenot technologically suited to product analysis due to the
34、nonuniform character of their chemical composition, andtherefore, the tolerances in Table 1 do not apply. Productanalysis is appropriate on these types of steel only whenmisapplication is apparent, or for copper when copper steel isspecified.6.2.2 For steels other than non-killed (capped or rimmed),
35、product analysis may be made by the purchaser. The chemicalanalysis shall not vary from the limits specified by more thanthe amounts in Table 1. The several determinations of anyelement in a cast shall not vary both above and below thespecified range.6.2.3 Sampling for Product Analysis:6.2.3.1 To in
36、dicate adequately the representative composi-tion of a cast by product analysis, it is general practice to selectsamples to represent the steel, as fairly as possible, from aminimum number of pieces as follows: three pieces for lots upto 15 tons included, and six pieces for lots over 15 tons.6.2.3.2
37、 When the steel is subject to tension test require-ments, samples for product analysis may be taken either bydrilling entirely through the used tension test specimensthemselves, or as covered in 6.2.3.3.6.2.3.3 When the steel is not subject to tension test require-ments, the samples for analysis mus
38、t be taken by milling ordrilling entirely through the sheet in a sufficient number ofplaces so that the samples are representative of the entire sheetor strip. The sampling may be facilitated by folding the sheetboth ways, so that several samples may be taken at one drilling.Steel subjected to certa
39、in heating operations by the purchasermay not give chemical analysis results that properly representits original composition. Therefore, users must analyze chipstaken from the steel in the condition in which it is receivedfrom the steel manufacturer.6.3 Specimen PreparationDrillings or chips must be
40、taken without the application of water, oil, or other lubricant,and must be free of scale, grease, dirt, or other foreignsubstances. They must not be overheated during cutting to theextent of causing decarburization. Chips must be well mixedand those too coarse to pass a No. 10 sieve or too fine to
41、remainon a No. 30 sieve are not suitable for proper analysis. Sievesize numbers are in accordance with Specification E11.6.4 Test MethodsIn case a referee analysis is required andagreed upon to resolve a dispute concerning the results of achemical analysis, the procedure for performing the refereean
42、alysis must be in accordance with the latest issue of TestMethods, Practices, and Terminology A751, unless otherwiseagreed upon between the manufacturer and the purchaser.7. Mechanical Properties7.1 The mechanical property requirements, number ofspecimens, and test locations and specimen orientation
43、 shall bein accordance with the applicable product specification.7.2 Unless otherwise specified in the applicable productspecification, test specimens must be prepared in accordancewith Test Methods and Definitions A370.7.3 Mechanical tests shall be conducted in accordance withTest Methods and Defin
44、itions A370.7.4 To determine conformance with the product specifica-tion, a calculated value shall be rounded to the nearest 1 ksitensile strength and yield point or yield strength, and to thenearest unit in the right hand place of figures used in expressingthe limiting value for other values in acc
45、ordance with therounding off method given in Practice E29.8. Dimensions and Tolerances8.1 The permissible tolerances for dimensions shall notexceed the applicable limits specified in Tables 2-5 for hot-rolled and hot-rolled, pickled-sheet coils and Tables 6-9 forhot-rolled and hot-rolled, pickled-st
46、rip coils (AnnexA1, TablesA1.1-A1.8).8.2 The appropriate thickness tolerance tables for measure-ments taken38 in. 10 mm from the edge are found in SectionS1, Supplementary Requirements, of this specification. See theappropriate product specification for instructions on how tospecify.9. Workmanship,
47、Finish, and Appearance9.1 The steel shall have a workmanlike appearance and shallnot have defects of a nature or degree that will be detrimentalto the stamping or fabrication of finished parts.9.2 Coils are subject to some abnormal imperfections thatrender a portion of the coil unusable since the in
48、spection ofcoils does not afford opportunity to remove portions containingimperfections.9.3 Surface Finish:9.3.1 Unless otherwise specified, the material shall be fur-nished without removing the hot-rolled oxide or scale.9.3.2 When required, it is permissible to specify the materialto be pickled or
49、blast-cleaned.9.4 Oiling:9.4.1 Unless otherwise specified, hot-rolled, as-rolled mate-rial shall be furnished not oiled, and hot-rolled, pickled, orblast-cleaned material shall be furnished oiled.9.4.2 When required, it is permissible to specify as-rolledmaterial be furnished oiled, or that pickled or blast-cleanedmaterial be furnished not oiled.9.5 Edges:9.5.1 As-rolled material has mill edges. Pickled or blast-cleaned material has cut edges; if mill-edge material is re-quired, it must be specified.9.5.2 When required, it is permissible t
