1、Designation: A1011/A1011M 12bA1011/A1011M 13Standard 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 numbe
2、r immediately 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
3、.1 This specification covers hot-rolled, carbon, structural, high-strength low-alloy, high-strength low-alloy with improvedformability, and ultra-high strength steel sheet and strip, in coils and cut lengths.1.2 Hot rolled steel sheet and strip is available in the designations as listed in 4.1.1.3 T
4、his specification is not applicable to the steel covered by Specification A635/A635M.1.4 The values stated in either SI 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 independentl
5、y of the other. Combining values from thetwo systems may result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength,
6、Low-Alloy, Hot-Rolled and Cold-Rolled,General Requirements forA635/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 forA749/A749M Specifica
7、tion for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled, General Requirements forA941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and FerroalloysE18 Test Methods for Rockwell Hardness of Metallic Materials3. Terminology3.1 DefinitionsFor definitions of other terms
8、used in this specification refer to Terminology A941.3.2 Definitions of Terms Specific to This Standard:3.2.1 agingloss of ductility with an increase in hardness, yield strength, and tensile strength that occurs when steel, which hasbeen slightly cold worked (such as by temper rolling) is stored for
9、 some time.3.2.1.1 DiscussionAging also increases the tendency toward stretcher strains and fluting.3.2.2 inclusion control, nthe process of reducing the volume fraction of inclusions or modifying the shape of inclusions toimprove formability, weldability, and machinability.3.2.2.1 Discussion1 This
10、specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.19on Steel Sheet and Strip.Current edition approved Nov. 1, 2012Oct. 1, 2013. Published November 2012October 2013. Originally approved in 2000
11、. Last previous edition approved in 2012 asA1011/A1011M 12a.A1011/A1011M 12b. DOI: 10.1520/A1011_A1011M-12b.10.1520/A1011_A1011M-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume informa
12、tion, refer to the standards Document Summary page on the ASTM website.This document 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 depi
13、ct 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 document.*A Summary of Changes section appears at the end of this standardCopyright ASTM Internation
14、al, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Inclusions, especially those elongated during the rolling process, create the conditions for initiating or propagating cracks whenthe material is stretched or bent during the manufacture of a part (or both). The
15、adverse effects of inclusions are minimized byreducing the content of inclusions in the steel or by altering the shape of inclusions through the use of additions during thesteelmaking process that change the elongated shape of the inclusions to less harmful small, well dispersed globular inclusions
16、(orboth).3.2.3 stabilizationaddition of one or more nitride or carbide forming elements, or both, such as titanium and columbium, tocontrol the level of the interstitial elements carbon and nitrogen in the steel.3.2.3.1 DiscussionStabilization improves formability and increases resistance to aging.3
17、.2.4 vacuum degassingprocess of refining liquid steel in which the liquid is exposed to a vacuum as part of a specialtechnique for removing impurities or for decarburizing the steel.4. Classification4.1 Hot-rolled steel sheet and steel strip is available in the following designations:4.1.1 Commercia
18、l Steel (CS Types A, B, C, and D),D, as specified in Table 1),4.1.2 Commercial Steel (CS Types A and B combined with chemistry grade per Specification A568/A568M Table X2.3),4.1.3 Drawing Steel (DS Types A and B),B, as specified in Table 1),4.1.4 Drawing Steel (DS Types A and B combined with chemist
19、ry grade per Specification A568/A568M Table X2.3,4.1.5 Commercial Steel Chemistry grade per Specification A568/A568M Table X2.1, with no type specified (CS 1005, CS 1008, CS 1020, etc.),4.1.6 Structural Steel (SS grades 30205, 33230, 36250 Types 1 and 2, 40275, 45310 Types 1 and 2, 50340, 55380,6041
20、0, 70480, and 80550),4.1.7 High-Strength Low-Alloy Steel (HSLAS, classes 1 and 2, in grades 45310, 50340, 55380, 60410, 65450, and70480.4.1.8 High-Strength Low-Alloy Steel with Improved Formability (HSLAS-F grades 50340, 60410, 70480, and 80550).4.1.8.1 HSLAS-F steel has improved formability when co
21、mpared to HSLAS. The steel is fully deoxidized, made to a fine grainpractice, and includes microalloying elements such as columbium, vanadium, and zirconium. The steel shall be treated to achieveinclusion control.4.1.9 Ultra-High Strength (UHSS Types 1 and 2, in Grades 90 620 and 100 690).4.1.9.1 UH
22、SS steel has increased strength compared with HSLAS-F. The steel is killed and made to a fine ferritic grain practice,and includes microalloying elements such as columbium (niobium), titanium, vanadium, molybdenum, and so forth. The steel shallbe treated to achieve inclusion control. The material is
23、 intended for miscellaneous applications where higher strength, savings inweight, and weldability are important. Atmospheric corrosion resistance of these steels is equivalent to plain carbon steels. Withcopper specified, the atmospheric corrosion resistance is somewhat enhanced.4.1.10 When required
24、 for HSLAS, HSLAS-F, and UHSS steels, limitations on the use of one or more of the microalloy elementsshall be specified on the order.TABLE 1 Chemical CompositionAFor Hot Rolled Steel Sheet and Strip Designations CS and DSComposition, % Heat AnalysisElement maximum unless otherwise shownC Mn P S Al
25、Si Cu Ni CrB Mo V Cb TiC N BCS Type AD,E,F,G 0.10 0.60 0.030 0.035 . . . . . . 0.20H 0.20 0.15 0.06 0.008 0.008 0.025 . . . . . .CS Type BF 0.02 to 0.15 0.60 0.030 0.035 . . . . . . 0.20H 0.20 0.15 0.06 0.008 0.008 0.025 . . . . . .CS Type CD,E,F,G 0.08 0.60 0.10 0.035 . . . . . . 0.20H 0.20 0.15 0.
26、06 0.008 0.008 0.025 . . . . . .CS Type DF 0.10 0.70 0.030 0.035 . . . . . . 0.20H 0.20 0.15 0.06 0.008 0.008 0.008 . . . . . .DS Type AD,E,G 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 . . . . . .DS Type B 0.02 to 0.08 0.50 0.020 0.030 0.01 min . . . 0.20 0.20 0.15 0.
27、06 0.008 0.008 0.025 . . . . . .A Where an ellipsis (. . .) appears in the table, there is no specified limit, but the analysis shall be reported.B Chromium is permitted, at the producers option, to 0.25 % maximum when the carbon content is less than or equal to 0.05 %.C For steels containing 0.02 %
28、 carbon or more, titanium is permitted at the producers option, to the lesser of 3.4N + 1.5S or 0.025 %.D Specify Type B to avoid carbon levels below 0.02 %.E For carbon levels less than or equal to 0.02 %, it is permissible to use vanadium, columbium, or titanium, or combinations thereof, as stabil
29、izing elements at the producersoption. In such case, the limits for these elements are 0.10 % for vanadium or columbium and 0.15 % for titanium.F When an aluminum deoxidized steel is required, it is permissible to order a minimum of 0.01 % total aluminum.G It is permissible to furnish as a vacuum de
30、gassed or chemically stabilized steel, or both, at producers option.H When copper steel is specified, the copper limit is a minimum requirement. When copper steel is not specified, the copper limit is a maximum requirement.A1011/A1011M 1325. Ordering Information5.1 It is the purchasers responsibilit
31、y to specify in the purchase order all ordering information necessary to describe the requiredmaterial. 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 steel sheet) (inclu
32、de grade, type and class, as appropriate, for CS, DS, SS,HSLAS, HSLAS-F, and UHSS) (see 4.1),5.1.2.1 When a chemistry grade is specified per Specification A568/A568M Table X2.3, the grade shall be furnished as; CSType B 1008, DS Type A -1005, etc.,5.1.2.2 When a chemistry grade is specified per Spec
33、ification A568/A568M Table X2.1, with no reference to CS Type A, CSType B, DS Type A, or DS Type B, the grade shall be furnished as CS 1005, CS 1008,CS 1020 etc., and meet chemistryspecified per Specification A568/A568M Table X2.1,5.1.2.3 When a type is not specified for CS or DS, DS and there is no
34、 reference to a chemistry grade such as 1005, 1006, etc.,Type B will be furnished (see 4.1),5.1.2.4 When a class is not specified for HSLAS, Class 1 will be furnished (see 4.1),5.1.2.5 When a type is not specified for SS Grades, Type 1 will be furnished (see 4.1),5.1.2.6 When a type is not specified
35、 for UHSS, Type 1 shall be 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 lengths or coils),NOTE 1Not all producers are capable of meeting all the limitations of the thickness
36、tolerance tables in Specifications A568/A568M and A749/A749M.The purchaser should contact the producer prior to placing an order.5.1.7 Coil size (inside diameter, outside diameter, and maximum weight),5.1.8 Copper bearing steel (if required),5.1.9 Quantity,5.1.10 Application (part identification and
37、 description),5.1.11 Areport of heat analysis will be supplied, if requested, for CS and DS. For materials with required mechanical properties,SS, HSLAS, HSLAS-F, and UHSS, a report is required of heat analysis and mechanical properties as determined by the tensiontest, and5.1.12 Special requirement
38、s (if any).5.1.12.1 When the purchaser requires thickness tolerances for 38 in. 10 mm minimum edge distance (see SupplementaryRequirement in Specification A568/A568M), this requirement shall be specified in the purchase order or contract.5.1.12.2 Tighter requirements can be specified based on agreem
39、ent between seller and purchaser.NOTE 2A typical ordering description is as follows: ASTM A1011-XX, hot rolled steel sheet, CS Type A, pickled and oiled, cut edge, 0.075 by 36by 96 in., 100 000 lb, for part no. 6310, for shelf bracket.or:ASTMA1011M-XX, hot rolled steel sheet, CS Type B, pickled and
40、oiled, cut edge, 3.7 by 117 mm by coil, ID 600 mm, OD 1500 mm, max weight 10 000kg, 50 000 kg, for upper control arm.6. General Requirements for Delivery6.1 Material furnished under this specification shall conform to the applicable requirements of the current edition ofSpecification A568/A568M for
41、sheets and Specification A749/A749M for strip, unless otherwise provided for herein.7. Chemical Composition7.1 The heat analysis of the steel shall conform to the chemical composition requirements of the appropriate designation shownin Table 1 for CS and DS and Table 2 for SS, HSLAS, HSLAS-F, and UH
42、SS.7.1.1 Areport of heat analysis will be supplied, if requested, for CS and DS. For materials with required mechanical properties,SS, HSLAS, HSLAS-F, and UHSS, a report of heat analysis is required.7.2 Each of the elements listed in Tables 1 and 2Table 1, Table 2, and Specification A568/A568M Table
43、 X2.3 shall be includedin the report of the heat analysis. When the amount of copper, nickel, chromium, or molybdenum is less than 0.02 %, report theanalysis as 0.02 % or the actual determined value. When the amount of vanadium, columbium, or titanium is less than 0.008 %,report the analysis as 0.00
44、8 % or the actual determined value.When the amount of boron is less than 0.0005 %, report the analysisas 0.0005 % or the actual determined value.7.3 Sheet steel grades defined by this specification are suitable for welding if appropriate welding conditions are selected. Forcertain welding processes,
45、 if more restrictive composition limits are desirable, they shall be specified at the time of inquiry andconfirmed at the time of ordering.A1011/A1011M 1338. Mechanical Properties8.1 CS and DS:8.1.1 Typical, nonmandatory mechanical properties for CS and DS for all grades specified in Table 1 and Spe
46、cificationA568/A568M Table X2.3 are found in Table 3.8.1.2 The material represented by all grades specified in Table 1 and Specification A568/A568M Table X2.3 shall be capableof being bent at room temperature in any direction through 180 flat on itself without cracking on the outside of the bent por
47、tion(see the section on bend test in Test Methods and Definitions A370). The bend test is not a requirement of delivery. However, iftesting is performed by the purchaser, material not conforming to the requirement shall be subject to rejection.8.2 SS, HSLAS, HSLAS-F, and UHSS:TABLE 2 Chemical Compos
48、itionAFor 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 CuB Ni 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
49、.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 2D 0.25 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 45 310 Type 1D 0.25 1.35 0.035 0.04 . . . . . . 0.20 0.20 0.15 0.06 0.008 0.008 0.025 . . .Grade 45 310 Type 2 0.020.080.301.000.030
