1、Designation: A635/A635M 13A635/A635M 14Standard 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 designa
2、tion A635/A635M; 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 revisio
3、n 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 general requirements for hot-rolled, heavy-thickness sheet and strip in coils.1.2 It applies to Specifications A414/A414M, A424/A424M, and A1018/A1018M.1.3
4、 This material is available only in coils described as follows: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 25A Hot-rolled heavy thickne
5、ss sheet in coils less than 12 in. 300 mm and less in width must have slit edges. Hot-rolled heavy thickness coils 12 in. 300 mm and widerwith 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 tensi
6、le testing direction for material from 0.180in. 4.5 mm to 0.230 in. exclusive 6.0 mm exclusive over 48 in. 1200 mm wide as that material is now covered by Specification A568/A568M 06a.The purchaser is advised to discuss this change with the supplier.NOTE 1The changes in width limits with the publica
7、tion of A635/A635M 06a result in a change in tensile testing direction for material from 0.180in. 4.5 mm to 0.230 in. exclusive 6.0 mm exclusive over 48 in. 1200 mm wide, as that material is now covered by Specification A568/A568M 06a.The purchaser is advised to discuss this change with the supplier
8、.1.4 In case of any conflict in requirements, the requirements of the individual material specification shall prevail over those ofthis general specification.1.5 Annex A1 lists permissible variations in dimensions and mass (see Note 2) in SI metric units. The values listed are notexact conversions o
9、f the values listed in the inch-pound tables, but instead are rounded or rationalized values. Conformance toAnnex A1 is mandatory when the “M” specification is used.NOTE 2The term weight is used when inch-pound units are the standard. However, under SI, the preferred term is mass.1.6 The values stat
10、ed in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.7
11、 This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However,unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-poundunits.1 This specification is under the jurisdi
12、ction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.19on Steel Sheet and Strip.Current edition approved Oct. 1, 2013Oct. 1, 2014. Published October 2013October 2014. Originally approved in 1970. Last previous edition approved in
13、 20092013 asA635/A635M 09b.A635/A635M 13. DOI: 10.1520/A0635_A0635M-13. 10.1520/A0635_A0635M-14.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically po
14、ssible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardC
15、opyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA414/A414M Specification for Steel, Sheet, Carbon, and High-Strength,
16、Low-Alloy for Pressure VesselsA424/A424M Specification for Steel, Sheet, for Porcelain EnamelingA568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements forA700 Practices for Packaging, Marking, and Loading Methods f
17、or Steel Products for Shipment (Withdrawn 2014)3A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements forA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsA941 Terminology Relati
18、ng to Steel, Stainless Steel, Related Alloys, and FerroalloysA1018/A1018M Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Carbon, Commercial, Drawing,Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High StrengthA1031 Spec
19、ification for Steel, Sheet and Strip, Heavy-Thickness Coils, Alloy, Drawing Steel and Structural Steel, Hot-RolledE11 Specification for Woven Wire Test Sieve Cloth and Test SievesE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications2.2 Federal Standards:
20、4Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.3 Military Standards:4MIL-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 steelsteel, nthe designation for steel when no minimum content is specified or r
21、equired for aluminum,chromium, cobalt, columbium, molybdenum, nickel, titanium, tungsten, vanadium, zirconium, or any element added to obtain adesired alloying effect; when the specified minimum for copper does not exceed 0.40 %; or when the maximum content specifiedfor any of the following elements
22、 does not exceed the percentages noted: manganese 1.65, silicon 0.60, or copper 0.60.3.1.2.1 DiscussionIn all carbon steels small quantities of certain residual elements unavoidably retained from raw materials are sometimes foundwhich are not specified or required, such as copper, nickel, molybdenum
23、, chromium, etc. and so forth. These elements areconsidered as incidental and are not normally determined or reported.3.1.3 high-strength, low-alloy steelsteel, na specific group of steels in which higher strength, and in some cases additionalresistance to atmospheric corrosion or improved formabili
24、ty, are obtained by moderate amounts of one or more alloying elements.3.2 Product Types:3.3 hot-rolled sheet and stripstrip, nmanufactured by hot rolling slabs in a continuous mill to the required thickness;however, the product classification of sheet and strip is based on a combination of thickness
25、 and width (see SpecificationSpeci-fications A414/A414M, A424/A424M, and A1018/A1018M).3.4 steel manufacturer, nthe organization that directly controls, or is responsible for, the melting and refining of steel and theconversion of that steel into semifinished steel products known as slabs either thr
26、ough continuous casting, conventional orcompact, or ingot casting and subsequent conversion of the ingots to slabs, and for one or more additional operations such astesting, marking, loading for shipment, and certification.3.5 hot roll manufacturer, nthe organization that directly controls, or is re
27、sponsible for, the conversion of steel slabs, by hotrolling into coils, and for one or more additional operations such as leveling, cutting to length, testing, inspection, blanking, slitting,pickling, cold rolling, heat treating, coating, packaging, marking, loading for shipment, and certification.3
28、.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, loading for shipment, and cer
29、tification.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical sta
30、ndard is referenced on www.astm.org.4 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.A635/A635M 1423.6.1 DiscussionThe processing operations need not be controlled by the organization that hot
31、rolls the slab into a coil. If only one organizationcontrols or is responsible (or both) for the hot rolling and processing operations, that organization is termed the hot rollmanufacturer. If more than one organization controls or is responsible (or both) for hot rolling and processing operations,
32、theorganization that controls and is responsible for the hot rolling is termed the manufacturer and the organization or organizationscontrolling and responsible for the processing operations is/are termed the coil processor or coil processors.3.7 Refer to Terminology A941 for additional definitions
33、of terms used in this standard.4. Index of Tables, Dimensions, and Allowances4.1 See the following table.table:Index of Tables for Dimensions, Tolerances, and AllowancesDimensions Table No.Inch-PoundUnitsSI UnitsCamberSheet 5 A1.4Strip 9 A1.8CrownStrip7 A1.6ThicknessSheet 2, S1.1 A1.1, S1.3Strip 6,
34、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 and strip coils are normally produced from rimmed, capped, orsemi-killed steel. If either coarse or fine-grain practice is specified, special soundness steel will be
35、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 is required.5.3 The steel shall be in the hot-rolled condition.6. Chemical Composition6.1 Cast or Heat (Formerly
36、 Ladle) AnalysisAn analysis of 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 taken during thepouring of the heat or cast.6.1.1 Where the material is used for fabrication by w
37、elding, care must be exercised in selection of chemical composition ormechanical properties to assure compatibility with the welding process 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 are not technolo
38、gically suited to product analysis due to the nonuniformcharacter of their chemical composition, and therefore, the tolerances in Table 1 do not apply. Product analysis is appropriate onTABLE 1 Tolerances for Product AnalysisElement Limit, or Maximum ofSpecified Element, %ToleranceUnderMini-mumLimit
39、OverMaxi-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 . . .A6
40、35/A635M 143these types of steel only when misapplication is apparent, or for copper when copper steel is specified.6.2.2 For steels other than non-killed (capped or rimmed), product analysis may be made by the purchaser. The chemicalanalysis shall not vary from the limits specified by more than the
41、 amounts in Table 1. The several determinations of any elementin a cast shall not vary both above and below the specified range.6.2.3 Sampling for Product Analysis:6.2.3.1 To indicate adequately the representative composition of a cast by product analysis, it is general practice to selectsamples to
42、represent the steel, as fairly as possible, from a minimum number of pieces as follows: three pieces for lots up to 15tons included, and six pieces for lots over 15 tons.6.2.3.2 When the steel is subject to tension test requirements, samples for product analysis may be taken either by drillingentire
43、ly through the used tension test specimens themselves, or as covered in 6.2.3.3.6.2.3.3 When the steel is not subject to tension test requirements, the samples for analysis must be taken by milling or drillingentirely through the sheet in a sufficient number of places so that the samples are represe
44、ntative of the entire sheet or strip. Thesampling may be facilitated by folding the sheet both ways, so that several samples may be taken at one drilling. Steel subjectedto certain heating operations by the purchaser may not give chemical analysis results that properly represent its originalcomposit
45、ion. Therefore, users must analyze chips taken from the steel in the condition in which it is received from the steelmanufacturer.6.3 Specimen PreparationDrillings or chips must be taken without the application of water, oil, or other lubricant, and mustbe free of scale, grease, dirt, or other forei
46、gn substances. They must not be overheated during cutting to the extent of causingdecarburization. Chips must be well mixed and those too coarse to pass a No. 10 sieve or too fine to remain on a No. 30 No. 30sieve are not suitable for proper analysis. Sieve size numbers are in accordance with Specif
47、ication E11.6.4 Test MethodsIn case a referee analysis is required and agreed upon to resolve a dispute concerning the results of achemical analysis, the procedure for performing the referee analysis must be in accordance with the latest issue of Test Methods,Practices, and Terminology A751, unless
48、otherwise agreed upon between the manufacturer and the purchaser.7. Mechanical Properties7.1 The mechanical property requirements, number of specimens, and test locations and specimen orientation shall be inaccordance with the applicable product specification.7.2 Unless otherwise specified in the ap
49、plicable product specification, test specimens must be prepared in accordance with TestMethods and Definitions A370.7.3 Mechanical tests shall be conducted in accordance with Test Methods and Definitions A370.7.4 To determine conformance with the product specification, a calculated value shall be rounded to the nearest 1 ksi tensilestrength and yield point or yield strength, and to the nearest unit in the right hand place of figures used in expressing the limitingvalue for other values in accordance with the rounding off m
