1、Designation: A635/A635M 15Standard 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/A63
2、5M; 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 reapprov
3、al.This standard has been approved for use by agencies of the U.S. 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
4、 is 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 coil
5、s less 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 direct
6、ion 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
7、individual 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
8、 rationalized 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
9、 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.1.7 This specification and the applicable material specifica-tions are expresse
10、d in 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 Product
11、sA414/A414M Specification for Steel, Sheet, Carbon, andHigh-Strength, Low-Alloy for Pressure VesselsA424/A424M Specification for Steel, Sheet, for PorcelainEnamelingA568/A568M Specification for Steel, Sheet, Carbon,Structural, and High-Strength, Low-Alloy, Hot-Rolled andCold-Rolled, General Requirem
12、ents forA700 Guide for Packaging, Marking, and Loading Methodsfor Steel Products for ShipmentA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsA941 Terminology Relating to Steel, Stainless Steel, RelatedAlloys, and FerroalloysA1018/A1018M Specification for Steel,
13、Sheet and Strip,Heavy-Thickness Coils, Hot-Rolled, Carbon,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, 2015. Published N
14、ovember 2015. Originallyapproved in 1970. Last previous edition approved in 2014 as A635/A635M 14.DOI: 10.1520/A0635_A0635M-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information
15、, 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 States1Commercial, Drawing, Structural, High-Strength Low-Allo
16、y, High-Strength Low-Alloy with ImprovedFormability, and Ultra-High StrengthA1073/A1073M Practice for Using Hand Micrometers toMeasure the Thickness of Nonmetallic and Metallic-Coated Steel SheetE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE29 Practice for Using Significant Digits
17、 in Test Data toDetermine 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 s
18、teel, nthe designation for steel when nominimum content is specified or required for aluminum,chromium, cobalt, columbium, molybdenum, nickel, titanium,tungsten, vanadium, zirconium, or any element added to obtaina desired alloying effect; when the specified minimum forcopper does not exceed 0.40 %;
19、 or when the maximum contentspecified for any of the following elements does not exceed thepercentages noted: manganese 1.65, silicon 0.60, or copper0.60.3.1.2.1 DiscussionIn all carbon steels small quantities ofcertain residual elements unavoidably retained from raw ma-terials are sometimes found w
20、hich are not specified or required,such as copper, nickel, molybdenum, chromium, and so forth.These elements are considered as incidental and are notnormally determined or reported.3.1.3 high-strength, low-alloy steel, na specific group ofsteels in which higher strength, and in some cases additional
21、resistance to atmospheric corrosion or improved formability,are obtained by moderate amounts of one or more alloyingelements.3.2 Product Types:3.3 hot-rolled sheet and strip, nmanufactured by hotrolling slabs in a continuous mill to the required thickness;however, the product classification of sheet
22、 and strip is basedon a combination of thickness and width (see SpecificationsA414/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 pr
23、oductsknown as slabs either through 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 th
24、at directlycontrols, or is responsible for, the conversion of steel slabs, byhot rolling into coils, and for one or more additional operationssuch as leveling, cutting to length, testing, inspection,blanking, slitting, pickling, cold rolling, heat treating, coating,packaging, marking, loading for sh
25、ipment, and certification.3.6 coil processor, nthe organization that directly controls,or is responsible for, operations involved in processing the coilsuch as leveling, cutting to length, testing, inspection,blanking, slitting, pickling, cold rolling, heat treating, coating,packaging, marking, load
26、ing for shipment, and certification.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 r
27、oll manufacturer. If more than 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 thepr
28、ocessing operations is/are 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
29、 Table No.Inch-PoundUnitsSI UnitsCamberSheet 5 A1.4Strip 9 A1.8CrownStrip7 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 rim
30、med, capped, orsemi-killed 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 mat
31、erial isrequired.5.3 The steel shall be in the hot-rolled condition.6. Chemical Composition6.1 Cast or Heat (Formerly Ladle) AnalysisAn analysis ofeach heat or cast shall be made by the steel manufacturer todetermine the conformance with the appropriate requirement.The analysis shall be from a test
32、sample preferably takenduring 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 or3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA
33、19111-5098, http:/www.dodssp.daps.mil.A635/A635M 152mechanical properties to assure compatibility with the weldingprocess and its effect on altering the properties.6.2 Product, Check, or Verification Analysis:6.2.1 Non-killed steels such as capped or rimmed steels arenot technologically suited to pr
34、oduct analysis due to thenonuniform 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-k
35、illed (capped or rimmed),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 Produ
36、ct Analysis:6.2.3.1 To indicate 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
37、lots over 15 tons.6.2.3.2 When the steel is subject to tension testrequirements, samples for product analysis may be taken eitherby drilling 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 testrequirements, the sam
38、ples for analysis must be taken bymilling or drilling entirely through the sheet in a sufficientnumber of places so that the samples are representative of theentire sheet or strip. The sampling may be facilitated by foldingthe sheet both ways, so that several samples may be taken atone drilling. Ste
39、el subjected to certain heating operations bythe purchaser may not give chemical analysis results thatproperly represent its original composition. Therefore, usersmust analyze chips taken from the steel in the condition inwhich it is received from the steel manufacturer.6.3 Specimen PreparationDrill
40、ings or chips must be takenwithout the application of water, oil, or other lubricant, andmust be free of scale, grease, dirt, or other foreign substances.They must not be overheated during cutting to the extent ofcausing decarburization. Chips must be well mixed and thosetoo coarse to pass a No. 10
41、sieve or too fine to remain on aNo. 30 sieve are not suitable for proper analysis. Sieve sizenumbers 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 per
42、forming the refereeanalysis 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
43、 specimen orientation 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 withT
44、est Methods and Definitions A370.7.4 To determine conformance with the productspecification, a calculated value shall be rounded to the nearest1 ksi tensile strength and yield point or yield strength, and tothe nearest unit in the right hand place of figures used inexpressing the limiting value for
45、other values in accordancewith the rounding 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
46、-rolled, pickled-strip 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 tospeci
47、fy.8.3 When thickness is measured using hand held microm-eters refer to Practice A1073/A1073M.9. Workmanship, 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 par
48、ts.9.2 Coils are subject to some abnormal imperfections thatrender a portion of the coil unusable since the inspection 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
49、 the hot-rolled oxide or scale.9.3.2 When required, it is permissible to specify the materialto be pickled or blast-cleaned.9.4 Oiling:TABLE 1 Tolerances for Product AnalysisElementLimit, or Maximum ofSpecified Element, %ToleranceUnderMini-mumLimitOverMaxi-mumLimitCarbon to 0.15, incl 0.02 0.03over 0.15 to 0.25, incl 0.03 0.04Manganese to 0.60, incl 0.03 0.03over 0.60 to 1.15, incl 0.04 0.04over 1.15 to 1.65, incl 0.05 0.05Phosphorus . . . 0.01Sulfur . . . 0.01Silicon to 0.30, incl 0.02 0.03over 0.30 to 0.60, incl 0.05 0.05Copper 0.02 . .
