1、Designation: A568/A568M 11bA568/A568M 13Standard Specification forSteel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirementsfor1This standard is issued under the fixed designation A568/A568M; the number immediately following the designation indic
2、ates 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 reapproval.This standard has been approved for use by agencies of
3、the Department of Defense.1. Scope*1.1 This specification covers the general requirements for steel sheet in coils and cut lengths. It applies to the followingspecifications that describe carbon steel, structural steel, and high-strength, low-alloy steel (HSLA) furnished as hot-rolled sheetand cold-
4、rolled sheet: Specifications A414/A414M, A424, A606, A659/A659M, A794, A1008/A1008M, A1011/A1011M, andA1039/A1039M.1.2 This specification is not applicable to hot-rolled heavy-thickness carbon sheet coils (Specification A635/A635M).1.3 In case of any conflict in requirements, the requirements of the
5、 individual material specification shall prevail over those ofthis general specification.1.4 For the purposes of determining conformance with this and the appropriate product specification referenced in 1.1, valuesshall be rounded to the nearest unit in the right hand place of figures used in expres
6、sing the limiting values in accordance withthe rounding method of Practice E29.1.5 Annex A1 lists permissible variations in dimensions and mass (see Note 1) in SI metric units. The values listed are notexact conversions of the values listed in the inch-pound tables, but instead are rounded or ration
7、alized values. Conformance toAnnex A1 is mandatory when the “M” specification is used.NOTE 1The term weight is used when inch-pound units are the standard. However, under SI the preferred term is mass.1.6 The values stated in either SI units or inch-pound units are to be regarded separately as stand
8、ard. 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 This specification and the applicable material specifications are expressed in
9、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.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA414
10、/A414M Specification for Steel, Sheet, Carbon, and High-Strength, Low-Alloy for Pressure VesselsA424 Specification for Steel, Sheet, for Porcelain EnamelingA606 Specification for Steel, Sheet and Strip, High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, with ImprovedAtmospheric Corrosion Resistan
11、ceA635/A635M Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Alloy, Carbon, Structural,High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General Requirements for1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, St
12、ainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.19on Steel Sheet and Strip.Current edition approved Oct. 1, 2011May 1, 2013. Published October 2011May 2013. Originally approved in 1966. Last previous edition approved in 2011 asA568/A568M 11a.A568/A568M 11b. DOI:
13、10.1520/A0568_A0568M-11b.10.1520/A0568_A0568M-13.2 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.This documen
14、t 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 possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as app
15、ropriate. 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 standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United St
16、ates1A659/A659M Specification for Commercial Steel (CS), Sheet and Strip, Carbon (0.16 Maximum to 0.25 Maximum Percent),Hot-RolledA700 Practices for Packaging, Marking, and Loading Methods for Steel Products for ShipmentA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Pro
17、ductsA794 Specification for Commercial Steel (CS), Sheet, Carbon (0.16 % Maximum to 0.25 % Maximum), Cold-RolledA941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and FerroalloysA1008/A1008M Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, H
18、igh-StrengthLow-Alloy with Improved Formability, Solution Hardened, and Bake HardenableA1011/A1011M Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High StrengthA1030/A1030M Practice for M
19、easuring Flatness Characteristics of Steel Sheet ProductsA1039/A1039M Specification for Steel, Sheet, Hot Rolled, Carbon, Commercial, Structural, and High-Strength Low-Alloy,Produced by Twin-Roll Casting ProcessE11 Specification for Woven Wire Test Sieve Cloth and Test SievesE29 Practice for Using S
20、ignificant Digits in Test Data to Determine Conformance with SpecificationsE59 Practice for Sampling Steel and Iron for Determination of Chemical Composition (Withdrawn 1996)3E290 Test Methods for Bend Testing of Material for Ductility2.2 Military Standards:4MIL-STD-129 Marking for Shipment and Stor
21、age2.3 Federal Standards:4Fed. Std. No. 123 Marking for Shipments (Civil Agencies)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Steel Types:3.1.2 carbon steeldesignation for steel when no minimum content is specified or required for aluminum, chromium, cobalt,columbium, moly
22、bdenum, nickel, titanium, tungsten, vanadium, zirconium, or any element added to obtain a desired alloyingeffect; when the specified minimum for copper does not exceed 0.40 %; or when the maximum content specified for any of thefollowing elements does not exceed the percentages noted: manganese 1.65
23、, 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, chromium, etc. These elements are considered asincid
24、ental and are not normally determined or reported.3.1.3 high-strength, low-alloy steelspecific group of steels in which higher strength, and in some cases additional resistanceto atmospheric corrosion or improved formability, are obtained by moderate amounts of one or more alloying elements.3.1.4 Pr
25、oduct Types:3.1.5 hot-rolled sheetmanufactured by hot rolling slabs in a continuous mill to the required thickness and can be supplied incoils or cut lengths as specified.(1) Hot-rolled carbon steel sheet is commonly classified by size as follows:Coils and Cut LengthsWidth, in. Thickness, in.All Wid
26、thsA 0.027 to 0.230, exclA Hot-rolled sheet in coils and cut lengths less than 12 in. in width must have cut edges. Hot-rolled material with mill edges 12 in. and less in width is considered hot-rolledstrip.Coils and Cut LengthsWidth, mm Thickness, mmAll WidthsA 0.7 to 6.0, exclA Hot-rolled sheet in
27、 coils and cut lengths less than 300 mm. in width must have cut edges. Hot-rolled material with mill edges 300 mm and less in width is consideredhot-rolled strip.(2) Hot-rolled high-strength low-alloy steel sheet is commonly classified by size as follows:3 The last approved version of this historica
28、l standard 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.A568/A568M 132Coils and Cut LengthsWidth, in. Thickness, in.All WidthsA 0.031 to 0.230, exclA Hot-rolle
29、d sheet in coils and cut lengths less than 12 in. in width must have cut edges. Hot-rolled material with mill edges 12 in. and less in width is considered hot-rolledstrip.Coils and Cut LengthsWidth, in. Thickness, mmAll WidthsA 0.8 to 6.0, exclA Hot-rolled sheet in coils and cut lengths less than 30
30、0 mm in width must have cut edges. Hot-rolled material with mill edges 300 mm and less in width is consideredhot-rolled strip.NOTE 2The changes in width limits with the publication of A568/A568M 06a result in a change in tensile testing direction for material from 0.180in. 4.5 mm to 0.230 in. exclus
31、ive 6.0 mm exclusive over 48 in. 1200 mm wide. Material formerly tested in the transverse direction will be testedin the longitudinal direction. This is expected to result in some changes in reported properties. The purchaser is advised to discuss this change with thesupplier.3.1.6 cold-rolled sheet
32、manufactured from hot-rolled descaled coils by cold reducing to the desired thickness, generallyfollowed by annealing to recrystallize the grain structure. If the sheet is not annealed after cold reduction it is known as full hardwith a hardness of 84 HRB minimum and can be used for certain applicat
33、ions where ductility and flatness are not required.(1) Cold-rolled carbon sheet is commonly classified by size as follows:Width, in. Thickness, in.All WidthsA,B Through 0.142Width, mm Thickness, mmAll WidthsA,B Through 4.0A Cold-rolled sheet coils and cut lengths, slit from wider coils with cut edge
34、 (only) and in thicknesses through 0.142 in. 4.0 mm carbon 0.25 % maximum by cast analysis.B When no special edge or finish (other than matte, commercial bright, or luster finish) or single strand rolling of widths, or both under 24 in. 600 mm is not specified orrequired.(2) Cold-rolled high-strengt
35、h low-alloy sheet is commonly classified by size as follows:Width, in. Thickness, in.Through 12 A 0.019 through 0.082Over 12 B 0.020 and overWidth, mm Thickness, mmTo 300, inclAOver 300B0.5 to 2.0, incl0.5 and OverA Cold-rolled sheet coils and cut lengths, slit from wider coils with cut edge (only)
36、and in thicknesses 0.019 in. 0.5 mm through 0.082 in. 2.0 mm carbon 0.25 % maximumby cast analysis.B When no special edge or finish (other than matte, commercial bright, or luster finish) or single strand rolling of widths, or both under 24 in. 600 mm is not specified orrequired.3.1.6.1 DiscussionSt
37、eel products are available in various thickness, width, and length combinations depending upon equipment and processingcapabilities of various manufacturers and processors. Historic limitations of a product based upon dimensions (thickness, width,and length) do not take into account current producti
38、on and processing capabilities. To qualify any product for a particular productspecification requires all appropriate and necessary tests be performed and that the results meet the limits prescribed in that productspecification. If the necessary tests required by a product specification cannot be co
39、nducted, the product cannot be qualified to thatspecification. This general requirements specification contains permitted variations for the commonly available sizes. Permittedvariations for other sizes are subject to agreement between the customer and the manufacturer or processor, whichever isappl
40、icable.3.1.7 retests, nadditional test, or tests, made from the original material when the original test did not meet the appropriateacceptance criteria required by a product specification and the failure was mechanical in natures as described in Section 11.3.1.8 resample, nadditional test or tests
41、made when the test on the original sample did not meet the appropriate acceptancecriteria required by the product specification, but possibly requiring that the material in question have an appropriate amountdiscarded prior to securing the new sample or samples.3.1.9 steel manufacturer, nthe organiz
42、ation 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 through continuous casting, conventional or compactmethods, or ingot casting and subsequent conversion of the ingots to slabs, a
43、nd for one or more additional operations such astesting, marking, loading for shipment, and certification.A568/A568M 1333.1.10 coil processorthe organization that directly controls or is responsible for operations involved in processing the coilsuch as leveling, cutting to length, testing, inspectio
44、n, blanking, slitting, pickling, cold rolling (cold reduction), heat treating,temper rolling, coating, packaging, marking, loading for shipment, and certification.3.1.10.1 DiscussionThe processing operations need not be controlled by the organization that hot rolls the slab into a coil. If only one
45、organizationcontrols or is responsible for (or both) the hot rolling and processing operations, that organization is termed the manufacturer. Ifmore than one organization controls or is responsible for (or both) hot rolling and processing operations, the organization thatcontrols and is responsible
46、for the hot rolling is termed the hot roll manufacturer and the organization or organizations controllingand responsible for the processing operations is/are termed the processor or processors. Likewise, one organization may be themanufacturer of the hot roll coil and another the manufacturer of the
47、 cold roll coil. In such case, the organization responsible forthe conversion of the hot roll coil to a cold roll coil and other processing operations will also be termed the cold roll manufacturerand organizations performing additional processing operations to the cold roll coil will be termed the
48、coil processor or coilprocessors.3.1.11 hot roll manufacturer, nthe organization that directly controls or is responsible 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, slittin
49、g,pickling, cold rolling, heat treating, coating, packaging, marking, loading for shipment, and certification.3.1.12 cold roll manufacturer, nthe organization that directly controls or is responsible for the conversion of hot roll coils intocold roll coils, and for one or more additional operations such as pickling, annealing, temper rolling, slitting, cutting to length,testing, inspection, blanking, coating, packaging, marking, loading for shipment, and certification.3.2 Refer to Terminology A941 for additional definitions of terms used in
