1、Designation: A1011/A1011M 09bStandard 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 A1011/A1011M; the number immediately f
2、ollowing 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 specifi
3、cation 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 specificatio
4、n is not applicable to the steel coveredby Specification A635/A635M.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 other. Com
5、biningvalues from the two systems may result in non-conformancewith the standard.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA568/A568M Specification for Steel, Sheet, Carbon, Struc-tural, and High-Strength, Low-Alloy, Hot-Rolle
6、d andCold-Rolled, General Requirements forA569/A569M Specification for Steel, Carbon (0.15 Maxi-mum, Percent), Hot-Rolled Sheet and Strip Commercial3A622/A622M Specification for Drawing Steel (DS), Sheetand Strip, Carbon, Hot-Rolled3A635/A635M Specification for Steel, Sheet and Strip,Heavy-Thickness
7、 Coils, Hot-Rolled, Alloy, Carbon, Struc-tural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, General RequirementsforA749/A749M Specification for Steel, Strip, Carbon andHigh-Strength, Low-Alloy, Hot-Rolled, General Require-ments forA941 Terminology Relating to Stee
8、l, Stainless Steel, Re-lated Alloys, and FerroalloysE18 Test Methods for Rockwell Hardness of Metallic Ma-terials3. Terminology3.1 DefinitionsFor definitions of other terms used in thisspecification refer to Terminology A941.3.2 Definitions of Terms Specific to This Standard:3.2.1 agingloss of ducti
9、lity 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 inclusion control, nthe
10、 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 cracks when the mat
11、erial 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 elongated shape of t
12、he 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.1This specificatio
13、n 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 Nov. 1, 2009. Published December 2009. Originallyapproved in 2000. Last previous edition approved in
14、2009 asA1011/A1011M 09a.DOI: 10.1520/A1011_A1011M-09B.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 page onthe ASTM website.3Withdr
15、awn. 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 Conshohocken, PA 19428-2959, United States.3.2.3.1 DiscussionStabilization
16、 improves formability andincreases resistance to aging.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 a
17、vailable in thefollowing 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 A569/A569Mand A622/A622M.4.1.3 Structural Steel (SS grades
18、30205, 33230, 36250Types 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,
19、and80550).4.1.5.1 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
20、 (UHSS Types 1 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 s
21、hall be treated 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
22、 corrosion resistance 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 orderi
23、ng information 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 C
24、S,DS, SS, HSLAS, 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.
25、1),5.1.2.4 When 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, width, and whether cut lengthsor coils),NOTE 2Not all producers are capable of meeting
26、all the limitations ofthe thickness tolerance tables in Specifications A568/A568M and A749/A749M. 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
27、 Application (part identification and description),5.1.11 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-mined by the t
28、ension test, and5.1.12 Special requirements (if any).5.1.12.1 When the purchaser requires thickness tolerancesfor38 in. 10 mm minimum edge distance (see SupplementaryRequirement in Specification A568/A568M), this requirementshall be specified in the purchase order or contract.NOTE 3A typical orderin
29、g description is as follows: ASTM A1011-XX, hot rolled steel sheet, CS Type A, pickled and oiled, cut edge, 0.075by 36 by 96 in., 100 000 lb, for part no. 6310, for shelf bracket.or:ASTM A1011M-XX, hot rolled steel sheet, CS Type B, pickled and oiled,cut edge, 3.7 by 117 mm by coil, ID 600 mm, OD 15
30、00 mm, max weight10 000 kg, 50 000 kg, for upper control arm.6. General Requirements for Delivery6.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofSpecification A568/A568M for sheets and Specification A749/A749M for strip, unless o
31、therwise provided for herein.7. Chemical Composition7.1 The heat analysis of the steel shall conform to thechemical composition 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 sh
32、all beincluded in the report of the heat analysis. When the amount ofcopper, nickel, chromium, or molybdenum is less than 0.02 %,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
33、 actualdetermined value. When the amount of boron is less than0.0005 %, report the analysis as 0.0005 % or the actualdetermined value.7.3 Sheet steel grades defined by this specification aresuitable for welding if appropriate welding conditions areselected. For certain welding processes, if more res
34、trictiveA1011/A1011M 09b2composition limits are desirable, they shall be specified at thetime of inquiry and confirmed at the time of ordering.8. Mechanical Properties8.1 CS and DS:8.1.1 Typical, nonmandatory mechanical properties for CSand DS are found in Table 3.TABLE 1 Chemical CompositionAFor Ho
35、t 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 0.15 0.06 0.008 0.008 0.025 . . . . . .CS Type BF0.02 to 0.15 0.60 0.030 0.035 . . . . . . 0
36、.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 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
37、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 specified limit, but the analysis shall be reported.BChromium is permitted, at the producers opt
38、ion, 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 %.DSpecify Type B to avoid carbon levels below 0.02 %.EFor carbon levels less than or equa
39、l 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 vanadium or columbium and 0.15 % for titanium.FWhen an aluminum deoxidized steel is required, it
40、 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 copper limit is a minimum requirement. When copper steel is not specified, the copper limit
41、 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 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
42、 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 . . .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
43、.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 1.35 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 55 380D0.25 1.35
44、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 0.20 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
45、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 0.20 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 . .
46、 . . . . 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 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.005 min 0.005 min 0.005 min . . .Grade 55 380 Class 2
47、 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 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 .
48、 . .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 minFGrade 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 m
49、in 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 10.15 2.00 0.020 0.025 . . . . . . 0.20 0.20 0.15 0.40 0.005 min 0.005 min 0.005 minFGrade 9
