1、Designation: A 635/A 635M 07Standard Specification forSteel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled,Carbon, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, GeneralRequirements for1This standard is issued under the fixed designation A 635/A 635M
2、; 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 (e) indicates an editorial change since the last revision or reapprova
3、l.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 Specification A 1018/A 1018M.1.3 This material is available only in coils descr
4、ibed 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 over 12over 3000.230 to 1.000, inclfrom 6.0 through 25NOTE 1The changes in width limits with the publication of A 635/A 635M 06a resul
5、t in a change in tensile testing direction 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 SpecificationA 568/A 568M 06a. The purchaser is advised to discuss this change withthe supplier.1.4 In case of any conflict
6、in requirements, the requirementsof the 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
7、-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 thestandard. However, under SI, the preferred term is mass.1.6 The values stated in either inch-pound units or
8、SI unitsare to be regarded as standard. Within the text, the SI units areshown in brackets. The values stated in each system are notexact equivalents; therefore, each system must be used inde-pendently of the other. Combining values from the two systemsmay result in nonconformance with this specific
9、ation.1.7 This specification and the applicable material specifica-tions are expressed 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 AST
10、M Standards:2A 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for ShipmentA 568/A 568M Specification for Steel, Sheet, Carbon,Structural, and High-Strength, Low-Alloy, Hot-Rolled andCold-Rolled, Ge
11、neral Requirements forA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel ProductsA 941 Terminology Relating to Steel, Stainless Steel, Re-lated Alloys, and FerroalloysA 1018/A 1018M Specification for Steel, Sheet and Strip,Heavy-Thickness Coils, Hot-Rolled, Carbon, Commerci
12、al,Drawing, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, andUltra-High StrengthE11 Specification for Wire Cloth and Sieves for TestingPurposesE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE59 Practice for
13、Sampling Steel and Iron for Determination1This 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 Sept. 1, 2007. Published September 2007. O
14、riginallyapproved in 1970. Last previous edition approved in 2006 as A 635/A 635M 06a.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
15、 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.of Chemical Composition32.2 Federal Standards:4Fed. Std. No. 123 Marking for Shipment (Civil A
16、gencies)Fed. Std. No. 183 Continuous Identification Marking of Ironand Steel Products2.3 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 steelthe designation for steel when no mini-mum con
17、tent 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 maximum content specified forany of th
18、e 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 specified or required,such as copper,
19、 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 corrosion or improved formability,ar
20、e 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 acombination of thickness and width (see S
21、pecification A 1018/A 1018M).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 through continuous casting, conventionalor compact, or ingot ca
22、sting 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 responsible for, the conversion of steel slabs, byhot rolling in
23、to 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 coil processor, nthe organization that directly con-trols,
24、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 certification.3.6.1 DiscussionThe processing operations need not
25、becontrolled by the organization that hot rolls the slab into a coil.If only one organization controls and/or is responsible for thehot rolling and processing operations, that organization istermed the hot roll manufacturer. If more than one organizationcontrols and/or is responsible for hot rolling
26、 and processingoperations, the organization that controls and is responsible forthe hot rolling is termed the manufacturer and the organizationor organizations controlling and responsible for the processingoperations is/are termed the coil processor or coil processors.3.7 Refer to Terminology A 941
27、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 UnitsCamberSheet 6 A1.5Strip 11 A1.10CrownStrip 9 A1.8ThicknessSheet 2, 3
28、 A1.1, A1.2Strip 7, 8 A1.6, A1.7WidthSheet 4, 5 A1.3, A1.4Strip 10 A1.95. Materials and Manufacture5.1 Melting PracticeHot-rolled heavy thickness sheet andstrip coils are normally produced from rimmed, capped, orsemi-killed steel. If either coarse or fine-grain practice isspecified, special soundnes
29、s 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 steel shall be in the hot-rolled condition.6. Chemical Composition6.1 Cast or
30、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 takenduring the pouring of the heat or cast.6.1.1 Where the material is used for fabr
31、ication 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 Verification Analysis:6.2.1 Non-killed steels such as capped or rimmed steels arenot
32、 technologically suited to product 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.
33、2 For steels other than non-killed (capped or rimmed),product analysis may be made by the purchaser. The chemical3Withdrawn.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.A 635/A 635M 072analys
34、is 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 indicate adequately the representative composi-tion of a cast by pr
35、oduct 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 (seePractice E59).6.2.3.2 When the steel is subject to tension test requ
36、ire-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 must be taken by milling ordrilling entirely throu
37、gh 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 certain heating operations by the purchasermay not g
38、ive 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 betaken without the application of water, oil, or
39、 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 remainon a No. 30 sieve are not suitable for pr
40、oper 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 refereeanalysis must be in accordance with the latest is
41、sue of TestMethods, Practices, and Terminology A 751, 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 shall bein accordance with the applicable pro
42、duct specification.7.2 Unless otherwise specified in the applicable productspecification, test specimens must be prepared in accordancewith Test Methods and Definitions A 370.7.3 Mechanical tests shall be conducted in accordance withTest Methods and Definitions A 370.7.4 To determine conformance wit
43、h 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 accordance with therounding off method given in
44、 Practice E29.8. Dimensions and Tolerances8.1 The permissible tolerances for dimensions shall notexceed the applicable limits specified in Tables 2-6 for hot-rolled and hot-rolled, pickled-sheet coils and Tables 7-11 forhot-rolled and hot-rolled, pickled-strip coils (AnnexA1, TablesA1.1-A1.10).TABLE
45、 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 .
46、. . 0.01Sulfur . . . 0.01Silicon to 0.30, incl 0.02 0.03over 0.30 to 0.60, incl 0.05 0.05Copper 0.02 . . .TABLE 2 Standard Thickness Tolerances for Heavy-Thickness Hot-Rolled Sheet (Carbon and High-Strength Low-Alloy Steel)38-in.(Cut Edge) and34-in. (Mill Edge) Minimum Edge Distance (Coils Only)NOTE
47、 1Thickness is measured at any point across the width not less than38 in. from a cut edge and not less than34 in. from a mill edge. This tabledoes not apply to the uncropped ends of mill edge coils.NOTE 2Micrometers used for measurement of thickness shall be constructed with anvils and spindles havi
48、ng minimum diameters of 0.188 in. 4.80mm. The tip of the spindle shall be flat, and the tip of the anvil shall be flat or rounded with a minimum radius of curvature of 0.10 in. 2.55 mm.Micrometers with pointed tips are not suitable for thickness measurements.Specified Width, in.Specified Ordered Thi
49、ckness, in.A0.230 to0.313, inclOver 0.313 to0.375, inclOver 0.375 to0.500, inclOver 0.500 to0.625, inclOver 0.625 to1.000, inclThickness Tolerances Over, in., No Tolerance UnderBOver 12 to 20, incl 0.020 0.024 0.028 0.030 0.032Over 20 to 40, incl 0.022 0.024 0.028 0.030 0.032Over 40 to 48, incl 0.024 0.026 0.028 0.030 0.032Over 48 to 60, incl 0.024 0.028 0.030 0.032 0.034Over 60 to 72, incl 0.026 0.030 0.032 0.036 0.038Over 72 0.030 0.032 0.036 0.038 0.040AThe specified thickness range captions apply independent of whether the ordered
