1、Designation: A 1011/A 1011M 09aStandard Specification forSteel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with ImprovedFormability, and Ultra-High Strength1This standard is issued under the fixed designation A 1011/A 1011M; the number immediate
2、ly following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This spe
3、cification covers hot-rolled, carbon, structural,high-strength low-alloy, high-strength low-alloy with im-proved formability, and ultra-high strength steel sheet and strip,in coils and cut lengths.1.2 Hot rolled steel sheet and strip is available in thedesignations as listed in 4.1.1.3 This specific
4、ation is not applicable to the steel coveredby Specification A 635/A 635M.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the othe
5、r. Combiningvalues from the two systems may result in non-conformancewith the standard.2. Referenced Documents2.1 ASTM Standards:2A 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 568/A 568M Specification for Steel, Sheet, Carbon,Structural, and High-Strength, Low-Alloy, Ho
6、t-Rolled andCold-Rolled, General Requirements forA 569/A 569M Specification for Steel, Carbon (0.15 Maxi-mum, Percent), Hot-Rolled Sheet and Strip Commercial3A 622/A 622M Specification for Drawing Steel (DS), Sheetand Strip, Carbon, Hot-Rolled3A 635/A 635M Specification for Steel, Sheet and Strip,He
7、avy-Thickness Coils, Hot-Rolled, Alloy, Carbon, Struc-tural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General RequirementsforA 749/A 749M Specification for Steel, Strip, Carbon andHigh-Strength, Low-Alloy, Hot-Rolled, General Require-ments forA 941 Terminology
8、Relating to Steel, Stainless Steel, Re-lated Alloys, and FerroalloysE18 Test Methods for Rockwell Hardness of MetallicMaterials3. Terminology3.1 DefinitionsFor definitions of other terms used in thisspecification refer to Terminology A 941.3.2 Definitions of Terms Specific to This Standard:3.2.1 agi
9、ngloss of ductility with an increase in hardness,yield strength, and tensile strength that occurs when steel,which has been slightly cold worked (such as by temperrolling) is stored for some time.3.2.1.1 DiscussionAging also increases the tendency to-ward stretcher strains and fluting.3.2.2 inclusio
10、n control, nthe process of reducing thevolume fraction of inclusions or modifying the shape ofinclusions to improve formability, weldability, and machinabil-ity.3.2.2.1 DiscussionInclusions, especially those elongatedduring the rolling process, create the conditions for initiating orpropagating crac
11、ks when the material is stretched or bentduring the manufacture of a part (or both). The adverse effectsof inclusions are minimized by reducing the content ofinclusions in the steel or by altering the shape of inclusionsthrough the use of additions during the steelmaking processthat change the elong
12、ated shape of the inclusions to lessharmful small, well dispersed globular inclusions (or both).3.2.3 stabilizationaddition of one or more nitride orcarbide forming elements, or both, such as titanium andcolumbium, to control the level of the interstitial elementscarbon and nitrogen in the steel.3.2
13、.3.1 DiscussionStabilization improves formability andincreases resistance to aging.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
14、May 1, 2009. Published May 2009. Originallyapproved in 2000. Last previous edition approved in 2009 asA 1011/A 1011M 09.2For 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
15、 to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoho
16、cken, PA 19428-2959, United States.3.2.4 vacuum degassingprocess of refining liquid steel inwhich the liquid is exposed to a vacuum as part of a specialtechnique for removing impurities or for decarburizing thesteel.4. Classification4.1 Hot-rolled steel sheet and steel strip is available in thefollo
17、wing designations:4.1.1 Commercial Steel (CS Types A, B, C, and D),4.1.2 Drawing Steel (DS Types A and B),NOTE 1CS Type B and DS Type B describe the most commonproduct previously included, respectively, in Specifications A 569/A 569M and A 622/A 622M.4.1.3 Structural Steel (SS grades 30205, 33230, 3
18、6250Types 1 and 2, 40275, 45310, 50340, 55380, 60410,70480, and 80550),4.1.4 High-Strength Low-Alloy Steel (HSLAS, classes 1and 2, in grades 45310, 50340, 55380, 60410, 65450,and 70480.4.1.5 High-Strength Low-Alloy Steel with Improved Form-ability (HSLAS-F grades 50340, 60410, 70480, and80550).4.1.5
19、.1 HSLAS-F steel has improved formability whencompared to HSLAS. The steel is fully deoxidized, made to afine grain practice, and includes microalloying elements suchas columbium, vanadium, and zirconium. The steel shall betreated to achieve inclusion control.4.1.6 Ultra-High Strength (UHSS Types 1
20、and 2, in Grades90 620 and 100 690).4.1.6.1 UHSS steel has increased strength compared withHSLAS-F. The steel is killed and made to a fine ferritic grainpractice, and includes microalloying elements such as colum-bium (niobium), titanium, vanadium, molybdenum, and soforth. The steel shall be treated
21、 to achieve inclusion control.The material is intended for miscellaneous applications wherehigher strength, savings in weight, and weldability are impor-tant.Atmospheric corrosion resistance of these steels is equiva-lent to plain carbon steels. With copper specified, the atmo-spheric corrosion resi
22、stance is somewhat enhanced.4.1.7 When required for HSLAS, HSLAS-F, and UHSSsteels, limitations on the use of one or more of the microalloyelements shall be specified on the order.5. Ordering Information5.1 It is the purchasers responsibility to specify in thepurchase order all ordering information
23、necessary to describethe required material. Examples of such information include,but are not limited to, the following:5.1.1 ASTM specification number and year of issue,5.1.2 Name of material and designation (hot-rolled steelsheet) (include grade, type and class, as appropriate, for CS,DS, SS, HSLAS
24、, HSLAS-F, and UHSS) (see 4.1),5.1.2.1 When a type is not specified for CS or DS, Type Bwill be furnished (see 4.1),5.1.2.2 When a class is not specified for HSLAS, Class 1will be furnished (see 4.1),5.1.2.3 When a type is not specified for SS Grade 36, Type1 will be furnished (see 4.1),5.1.2.4 When
25、 a type is not specified for UHSS, Type 1 shallbe furnished (see 4.1).5.1.3 Finish (see 9.1)5.1.4 Type of edge (see 9.3),5.1.5 Oiled or not oiled, as required (see 9.2),5.1.6 Dimensions (thickness, thickness tolerance table (see5.1.6.1), width, and whether cut lengths or coils),5.1.6.1 As agreed upo
26、n between the purchaser and theproducer, material ordered to this specification will be suppliedto meet the appropriate thickness tolerance table shown inSpecifications A 568/A 568M for sheet and A 749/A 749M forstrip.NOTE 2Not all producers are capable of meeting all the limitations ofthe thickness
27、 tolerance tables in Specifications A 568/A 568M and A 749/A 749M. The purchaser should contact the producer prior to placing anorder.5.1.7 Coil size (inside diameter, outside diameter, and maxi-mum weight),5.1.8 Copper bearing steel (if required),5.1.9 Quantity,5.1.10 Application (part identificati
28、on and description),5.1.11 Special requirements (if required), and5.1.12 A report of heat analysis will be supplied, if re-quested, for CS and DS. For materials with required mechani-cal properties, SS, HSLAS, HSLAS-F, and UHSS, a report isrequired of heat analysis and mechanical properties as deter
29、-mined by the tension test.NOTE 3A typical ordering description is as follows: ASTM A1011-XX, hot rolled steel sheet, CS Type A, pickled and oiled, cut edge,0.075 by 36 by 96 in., thickness tolerance Table 4 of SpecificationA 568/A 568M, 100 000 lb, for part no. 6310, for shelf bracket.or:ASTMA 1011
30、M-XX, hot rolled steel sheet, CS Type B, pickled and oiled,cut edge, 3.7 by 117 mm by coil, ID 600 mm, OD 1500 mm, max weight10 000 kg, thickness tolerance Table A1.1 of Specification A 568/A 568M, 50 000 kg, for upper control arm.6. General Requirements for Delivery6.1 Material furnished under this
31、 specification shall con-form to the applicable requirements of the current edition ofSpecification A 568/A 568M for sheets and SpecificationA 749/A 749M for strip, unless otherwise provided for herein.7. Chemical Composition7.1 The heat analysis of the steel shall conform to thechemical composition
32、 requirements of the appropriate desig-nation shown in Table 1 for CS and DS and Table 2 for SS,HSLAS, HSLAS-F, and UHSS.7.2 Each of the elements listed in Tables 1 and 2 shall beincluded in the report of the heat analysis. When the amount ofcopper, nickel, chromium, or molybdenum is less than 0.02
33、%,report the analysis as 0.02 % or the actual determined value.When the amount of vanadium, columbium, or titanium is lessthan 0.008 %, report the analysis as 0.008 % or the actualdetermined value. When the amount of boron is less than0.0005 %, report the analysis as 0.0005 % or the actualdetermined
34、 value.7.3 Sheet steel grades defined by this specification aresuitable for welding if appropriate welding conditions areA 1011/A 1011M 09a2selected. For certain welding processes, if more restrictivecomposition limits are desirable, they shall be specified at thetime of inquiry and confirmed at the
35、 time of ordering.8. Mechanical Properties8.1 CS and DS:TABLE 1 Chemical CompositionAFor Hot Rolled Steel Sheet and Strip Designations CS and DSComposition, % Heat AnalysisElement maximum unless otherwise shownCMnPSAlSiCuNiCrBMo V Cb TiCNBCS Type AD,E,F,G0.10 0.60 0.030 0.035 . . . . . . 0.20H0.20 0
36、.15 0.06 0.008 0.008 0.025 . . . . . .CS Type BF0.02 to 0.15 0.60 0.030 0.035 . . . . . . 0.20H0.20 0.15 0.06 0.008 0.008 0.025 . . . . . .CS Type CD,E,F,G0.08 0.60 0.10 0.035 . . . . . . 0.20H0.20 0.15 0.06 0.008 0.008 0.025 . . . . . .CS Type DF0.10 0.70 0.030 0.035 . . . . . . 0.20H0.20 0.15 0.06
37、 0.008 0.008 0.008 . . . . . .DS Type AD,E,G0.08 0.50 0.020 0.030 0.01 min . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . . . . .DS Type B 0.02 to 0.08 0.50 0.020 0.030 0.01 min . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . . . . .AWhere an ellipsis (. . .) appears in the table, there is no speci
38、fied limit, but the analysis shall be reported.BChromium is permitted, at the producers option, to 0.25 % maximum when the carbon content is less than or equal to 0.05 %.CFor steels containing 0.02 % carbon or more, titanium is permitted at the producers option, to the lesser of 3.4N + 1.5S or 0.025
39、 %.DSpecify Type B to avoid carbon levels below 0.02 %.EFor carbon levels less than or equal to 0.02 %, it is permissible to use vanadium, columbium, or titanium, or combinations thereof, as stabilizing elements at theproducers option. In such case, the limits for these elements are 0.10 % for vanad
40、ium or columbium and 0.15 % for titanium.FWhen an aluminum deoxidized steel is required, it is permissible to order a minimum of 0.01 % total aluminum.GIt is permissible to furnish as a vacuum degassed or chemically stabilized steel, or both, at producers option.HWhen copper steel is specified, the
41、copper limit is a minimum requirement. When copper steel is not specified, the copper limit is a maximum requirement.TABLE 2 Chemical CompositionAFor Hot Rolled Steel Sheet and Strip Designations SS, HSLAS, HSLAS-F, and UHSS% Heat Analysis, Element Maximum unless otherwise shownDesignation C Mn P S
42、Al Si CuBNi Cr Mo V Cb Ti NSS:CGrade 30 205 0.25 0.90 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 33 230 0.25 0.90 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 36 250 Type 1 0.25 0.90 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025
43、. . .Grade 36 250 Type 2D0.25 1.35 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 40 275 0.25 0.90 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 45 310D0.25 1.35 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 50 340D0.25 1.3
44、5 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 55 380D0.25 1.35 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 60 410 0.25 1.35 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 70 480 0.25 1.35 0.035 0.04 . . . . . . 0.20 0.2
45、0 0.15 0.06 0.008 0.008 0.025 . . .Grade 80 550 0.25 1.35 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .HSLAS:EGrade 45 310 Class 1D0.22 1.35 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 45 310 Class 2 0.15 1.35 0.04 0.04 . . . . . . 0.20 0.2
46、0 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 50 340 Class 1D0.23 1.35 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 50 340 Class 2 0.15 1.35 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 55 380 Class 1D0.25 1.35 0.04 0
47、.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 55 380 Class 2 0.15 1.35 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 60 410 Class 1 0.26 1.50 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 60 410
48、Class 2 0.15 1.50 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 65 450 Class 1 0.26 1.50 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 minFGrade 65 450 Class 2 0.15 1.50 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min
49、FGrade 70 480 Class 1 0.26 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.16 0.005 min 0.005 min 0.005 minFGrade 70 480 Class 2 0.15 1.65 0.04 0.04 . . . . . . 0.20 0.20 0.15 0.16 0.005 min 0.005 min 0.005 minFHSLAS-F:EGrade 50 340 and 60 410 0.15 1.65 0.020 0.025 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 minFGrade 70 480 and 80 550 0.15 1.65 0.020 0.025 . . . . . . 0.20 0.20 0.15 0.16 0.005 min 0.005 min 0.005 minFUHSS:EGrade 90 620 and 100690 Type 10.1
