1、Designation:A568/A568M09a1Designation: A568/A568M 11Standard 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 desig
2、nation 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 reapproval.This standard has been approved for use by
3、agencies of the Department of Defense.1NOTETable 3 was editorially corrected in April 2011.1. 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-streng
4、th, low-alloy steel (HSLA) furnished as hot-rolled sheetand cold-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
5、 In case of any conflict in requirements, the requirements of the 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 t
6、he nearest unit in the right hand place of figures used in expressing 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 l
7、isted in the inch-pound tables, but instead are rounded or rationalized 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
8、 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 This specifica
9、tion 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.2. Referenced Documents2.1 ASTM Standards:2A370 Test Met
10、hods and Definitions for Mechanical Testing of Steel ProductsA414/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-Ro
11、lled and Cold-Rolled, with ImprovedAtmospheric Corrosion ResistanceA635/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 forA659/A659M Spec
12、ification for Commercial Steel (CS), Sheet and Strip, Carbon (0.16 Maximum to 0.25 Maximum Percent),Hot-Rolled1This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.19on Steel Sheet and Strip.C
13、urrent edition approved Feb. 9,April 1, 2011. Published December 2009.April 2011. Originally approved in 1966. Last previous edition approved in 2009 asA568/A568M 09AaE01. DOI: 10.1520/A0568_A0568M-09AE01. 10.1520/A0568_A0568M-11.2For referencedASTM standards, visit theASTM website, www.astm.org, or
14、 contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes ha
15、ve 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 appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official do
16、cument.*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.A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for ShipmentA751 Test Methods, Prac
17、tices, and Terminology for Chemical Analysis of Steel ProductsA794 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, Co
18、ld-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-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 Formab
19、ility, and Ultra-High StrengthA1030/A1030M Practice for Measuring 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
20、 Test Sieve Cloth and Test SievesE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE59 Practice for Sampling Steel and Iron for Determination of Chemical Composition3E290 Test Methods for Bend Testing of Material for Ductility2.2 Military Standards:4M
21、IL-STD-129 Marking for Shipment and Storage2.3 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 al
22、uminum, chromium, cobalt,columbium, molybdenum, 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 exce
23、ed 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 materialsare sometimes found which are not specified or required, such as copper, nickel, molybdenum, chromium, et
24、c. These elements areconsidered as incidental 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 o
25、f one or more alloying elements.3.1.4 Product 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
26、 LengthsWidth, in. Thickness, in.All WidthsA0.027 to 0.230, exclAHot-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
27、0.7 to 6.0, exclAHot-rolled sheet in 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:Coils and
28、 Cut LengthsWidth, in. Thickness, in.All WidthsA0.031 to 0.230, exclAHot-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, in. Thickness, mmAll Wi
29、dthsA0.8 to 6.0, exclAHot-rolled sheet in 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.3Withdrawn. The last approved version of this historical standard is referenced on www.astm.org.4A
30、vailable from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.A568/A568M 112NOTE 2The changes in width limits with the publication ofA568/A568M 06a result in a change in tensile testing direction for material
31、from 0.180in. 4.5 mm to 0.230 in. exclusive 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
32、with thesupplier.3.1.6 cold-rolled sheetmanufactured 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 mini
33、mum and can be used for certain applications 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,BThrough 0.142Width, mm Thickness, mmAll WidthsA,BThrough 4.0ACold-rolled sheet coils and cut lengths
34、, slit from wider coils with cut edge (only) and in thicknesses through 0.142 in. 4.0 mm carbon 0.25 % maximum by cast analysis.BWhen 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 specifiedor r
35、equired.(2) Cold-rolled high-strength low-alloy sheet is commonly classified by size as follows:Width, in. Thickness, in.Through 12A0.019 through 0.082Over 12B0.020 and overWidth, mm Thickness, mmTo 300, inclAOver 300B0.5 to 2.0, incl0.5 and OverACold-rolled sheet coils and cut lengths, slit from wi
36、der coils with cut edge (only) and in thicknesses 0.019 in. 0.5 mm through 0.082 in. 2.0 mm carbon 0.25 %maximum by cast analysis.BWhen 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 specifiedor
37、 required.3.1.6.1 DiscussionSteel products are available in various thickness, width, and length combinations depending uponequipment and processing capabilities of various manufacturers and processors. Historic limitations of a product based upondimensions (thickness, width, and length) do not take
38、 into account current production and processing capabilities. To qualify anyproduct for a particular product specification requires all appropriate and necessary tests be performed and that the results meetthe limits prescribed in that product specification. If the necessary tests required by a prod
39、uct specification cannot be conducted,the product cannot be qualified to that specification. This general requirements specification contains permitted variations for thecommonly available sizes. Permitted variations for other sizes are subject to agreement between the customer and the manufacturero
40、r processor, whichever is applicable.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 resamp
41、le, nadditional test or tests 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 st
42、eel manufacturer, nthe organization that directly controls or is responsible for the melting and refining of steel andthe conversion of that steel into semifinished steel products known as slabs either through continuous casting, conventional orcompact methods, or ingot casting and subsequent conver
43、sion of the ingots to slabs, and for one or more additional operations suchas testing, marking, loading for shipment, and certification.3.1.10 coil processorthe organization that directly controls or is responsible for operations involved in processing the coilsuch as leveling, cutting to length, te
44、sting, inspection, 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 co
45、il.If only one organization controls or is responsible for (or both) the hot rolling and processing operations, that organization istermed the manufacturer. If more than one organization controls or is responsible for (or both) hot rolling and processingoperations, the organization that controls and
46、 is responsible for the hot rolling is termed the hot roll manufacturer and theorganization or organizations controlling and responsible for the processing operations is/are termed the processor or processors.Likewise, one organization may be the manufacturer of the hot roll coil and another the man
47、ufacturer of the cold roll coil. In suchcase, the organization responsible for the conversion of the hot roll coil to a cold roll coil and other processing operations will alsobe termed the cold roll manufacturer and organizations performing additional processing operations to the cold roll coil wil
48、l betermed the coil processor or coil processors.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, b
49、lanking, slitting,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,A568/A568M 113testing, inspection, blanking, coating, packaging, marking, loading for shipment, and certification.3.2 Refer to Terminology A941 for additional
