1、Designation: A1011/A1011M 18A1011/A1011M 18aStandard 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.This stand
3、ard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 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 Ho
4、t rolled steel sheet and strip is available in the designations as listed in 4.1.1.3 This 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 each
5、system 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.1.5 This international standard was developed in accordance with internationally recognized principles on standar
6、dizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical T
7、esting of Steel ProductsA568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, 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-
8、Alloy, and High-Strength Low-Alloy with Improved Formability, General Requirements forA749/A749M Specification for Steel, Strip, Carbon and High-Strength, Low-Alloy, Hot-Rolled, General Requirements forA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsA941 Terminol
9、ogy Relating to Steel, Stainless Steel, Related Alloys, and FerroalloysE18 Test Methods for Rockwell Hardness of Metallic Materials3. Terminology3.1 DefinitionsFor definitions of other terms used in this specification refer to Terminology A941.3.2 Definitions of Terms Specific to This Standard:3.2.1
10、 aging, nloss of ductility with an increase in hardness, yield strength, and tensile strength that occurs when steel, whichhas been slightly cold worked (such as by temper rolling) is stored for some time.3.2.1.1 Discussion1 This specification is under the jurisdiction ofASTM Committee A01 on Steel,
11、 Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.19on Steel Sheet and Strip.Current edition approved June 1, 2018Sept. 1, 2018. Published August 2018September 2018. Originally approved in 2000. Last previous edition approved in 20172018as A1011/A1011M 17a.A1011
12、/A1011M 18. DOI: 10.1520/A1011_A1011M-18.10.1520/A1011_A1011M-18A.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 web
13、site.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 depict all changes accurately, ASTM recommends that users consult prio
14、r 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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1942
15、8-2959. United States1Aging 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 DiscussionInclusions, es
16、pecially 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 adverse effects of inclusions are minimized byreducing the content of inclusions in the steel or by al
17、tering 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 (orboth).3.2.3 stabilization, naddition of one or more nitride or carbide forming elements, or both, s
18、uch as titanium and columbium,to control the level of the interstitial elements carbon and nitrogen in the steel.3.2.3.1 DiscussionStabilization improves formability and increases resistance to aging.3.2.4 vacuum degassing, nprocess of refining liquid steel in which the liquid is exposed to a vacuum
19、 as part of a specialtechnique for removing impurities or for decarburizing the steel.3.2.5 Special Forming Steel (SFS), nSteel ordered to 1010 chemistry or greater levels of carbon, manganese or both, whichexhibits enhanced formability or mechanical properties.3.2.5.1 DiscussionSteel grades such as
20、 CS 1010 or CS 1020 for example, adheres to chemistry requirements only, whereas SFS 1010 or SFS 1020, also provide enhanced formability. Due to greater carbon content, SFS 1020 is not as formable as SFS 1010.4. Classification4.1 Hot-rolled steel sheet and steel strip is available in the following d
21、esignations:4.1.1 Commercial Steel (CS Types A, B, C, and D, as specified in Table 1),4.1.2 Commercial Steel (CS Types A and B combined with chemistry grade in accordance with Specification A568/A568MTable X2.3),4.1.3 Drawing Steel (DS Types A and B, as specified in Table 1),TABLE 1 Chemical Composi
22、tionFor Hot Rolled Steel Sheet and Strip Designations CS, DS, and SFSComposition, % Heat AnalysisElement maximum unless otherwise shownC Mn P S Al Si Cu Ni CrB Mo V Cb/NbJ TiC N BCS Type AD,E,F,G 0.10 0.60 0.030 0.035 A A 0.20H 0.20 0.15 0.06 0.008 0.008 0.025 A ACS Type BF 0.02 to 0.15 0.60 0.030 0
23、.035 A A 0.20H 0.20 0.15 0.06 0.008 0.008 0.025 A ACS Type BF 0.020.15 0.60 0.030 0.035 A A 0.20H 0.20 0.15 0.06 0.008 0.008 0.025 A ACS Type CD,E,F,G 0.08 0.60 0.10 0.035 A A 0.20H 0.20 0.15 0.06 0.008 0.008 0.025 A ACS Type DF 0.10 0.70 0.030 0.035 A A 0.20H 0.20 0.15 0.06 0.008 0.008 0.008 A ADS
24、Type AD,E,G 0.08 0.50 0.020 0.030 0.01 min A 0.20 0.20 0.15 0.06 0.008 0.008 0.025 A ADS Type B 0.02 to 0.08 0.50 0.020 0.030 0.01 min A 0.20 0.20 0.15 0.06 0.008 0.008 0.025 A ADS Type B 0.020.08 0.50 0.020 0.030 0.01 min A 0.20 0.20 0.15 0.06 0.008 0.008 0.025 A ASFS I I 0.020 0.030 0.01 min A 0.2
25、0 0.20 0.15 0.06 0.008 0.008 0.025 A AA 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 % carbon or more, titanium is permitted at
26、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 stabilizing elements at the producersoption. In
27、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 degassed or chemically stabilized steel, or
28、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.I Carbon CS Type B 1008, DS Type A 1005, and so forth,5.1.2.2 When a chemistry grade is specified in accordance with Sp
29、ecification A568/A568M Table X2.1, with no reference toCS Type A, CS Type B, DS Type A, DS Type B, or SFS, the grade shall be furnished as CS 1005, CS 1008, CS 1020 andso forth, and meet chemistry specified in accordance with Specification A568/A568M Table X2.1,5.1.2.3 When a type is not specified f
30、or CS or DS and there is no reference to a chemistry grade such as 1005, 1006, and soforth, Type B will be furnished (see 4.1),5.1.2.4 When SFS is specified, a chemistry grade designation shall also be specified in accordance with SpecificationA568/A568M Table X2.1 (that is, 1010, 1020, and so forth
31、), or carbon forexample the manufacturers name or brand, the processors name or brand or the sellers name or brand, ASTM specificationnumber and year date, product designation, grade, type or class, as applicable, and all other information necessary to completelyidentify the material.TABLE 3 Typical
32、 Ranges of Mechanical PropertiesA(Nonmandatory)B for Hot-rolled Steel Sheet and StripDesignations CS and DS (Includes Grades in Accordance WithSpecification A568/A568M, Table X2.3)Designation Yield StrengthC Elongation in 2in. 50 mm %CDesignation Yield StrengthC Elongation in 2in. 50 mm %Cksi MPaCS
33、Types A, B,C, and D 30 to 50 205 to 340 $25CS Types A, B,C, and D 3050 205340 $25DS Types A andB 30 to 45 205 to 310 $28DS Types A andB 3045 205310 $28A The yield strength tends to increase and the elongation tends to decrease as thesheet thickness decreases. These properties represent those typical
34、 of material inthe thickness range of 0.100 to 0.150 in. 2.5 to 3.5 mm for CS Types A, B, andDS TypesAand B and in the thickness ranges of 0.060 to 0.075 in. 1.5 to 1.9 mmfor CS Type D.B The typical mechanical property values presented here are nonmandatory. Theyare provided to assist the purchaser
35、in specifying a suitable steel for a givenapplication. Values outside these ranges are to be expected.C Yield strength and elongation are measured in the longitudinal direction inaccordance with Test Methods and Definitions A370.A1011/A1011M 18a711.6 A signature is not required on test reports and c
36、ertificates of compliance. Notwithstanding the absence of a signature, theorganization submitting the test reports or certificates of compliance is responsible for the accuracy of the information.11.7 When electronic data interchange (EDI) is used to transmit material test reports or certificates of
37、 compliance they shall beregarded as having the same validity as a counterpart printed in the certifiers facility. The content of the EDI transmitted documentshall meet all of the requirements indicated in 11.2 11.5.11.8 The furnishing of a test report or certificate of compliance, or both, shall no
38、t restrict the right of the purchaser to sampleand test the product furnished.TABLE 4 Mechanical Property RequirementsAFor for Hot Rolled Steel Sheet and Strip Designations SS, HSLAS, HSLAS-F, and UHSSDesignation Yield Strength Tensile StrengthBElongation in 2 in. 50 mm min, % for Thicknesses:Elonga
39、tion in 8 in.200 mm, % forThickness:sDesignation Yield Strengthksi MPa minTensile StrengthBksi MPa min orrangeElongation in 2 in. 50 mm min, % for Thicknesses:Elongation in 8 in.200 mm, % forThickness:ksi MPa min ksi MPa minor rangeUnder0.230to 0.097 in. 6.0 to2.5 mmUnder0.097 to 0.0641.6 mmUnder0.2
40、300.097 in.6.02.5 mmUnder0.0970.064 in.2.5 to 1.6 mmUnder0.0640.025 in1.60.65mmUnder0.230 in. 6.0 mmSS:SS:Grade 30 205 30 205 49 340 25 24 21 19Grade 33 230 33 230 52 360 23 22 18 18Grade 36 250 Type 1 36 250 53 365 22 21 17 17Grade 36 250 Type 2 36 250 58-80 400-550 21 20 16 16Grade 36 250 Type 2 3
41、6 250 5880 400550 21 20 16 16Grade 40 275 40 275 55 380 21 20 15 16Grade 45 310 Type 1 45 310 60 410 19 18 13 14Grade 45 310 Type 2 4560 310410 60 410 20 19 14 15Grade 50 340 50 340 65 450 17 16 11 12Grade 55 380 55 380 70 480 15 14 9 10Grade 60 410 60 410 75 520 14 13 8 9Grade 70 480 70 480 85 585
42、13 12 7 8HSLAS:Over 0.097 in.2.5 mmUp to 0.097 in.2.5 mm. . .HSLAS:Over 0.097 in.2.5 mmUp to 0.097 in.2.5 mmGrade 45 310 Class 1 45 310 60 410 25 23 . . .Grade 45 310 Class 2 45 310 55 380 25 23 . . .Grade 50 340 Class 1 50 340 65 450 22 20 . . .Grade 50 340 Class 2 50 340 60 410 22 20 . . .Grade 55
43、 380 Class 1 55 380 70 480 20 18 . . .Grade 55 380 Class 2 55 380 65 450 20 18 . . .Grade 60 410 Class 1 60 410 75 520 18 16 . . .Grade 60 410 Class 2 60 410 70 480 18 16 . . .Grade 65 450 Class 1 65 450 80 550 16 14 . . .Grade 65 450 Class 2 65 450 75 520 16 14 . . .Grade 70 480 Class 1 70 480 85 5
44、85 14 12 . . .Grade 70 480 Class 2 70 480 80 550 14 12 . . .HSLAS-F:HSLAS-F:Grade 50 340 50 340 60 410 24 22 . . .Grade 60 410 60 410 70 480 22 20 . . .Grade 70 480 70 480 80 550 20 18 . . .Grade 80 550 80 550 90 620 18 16 . . .UHSS:UHSS:Grade 90 620 Types 1 and 2 90 620 100 690 16 14 . . .Grade 100
45、 690 Types 1 and 2 100 690 110 760 14 12 . . .A For coil products, testing by the producer is limited to the end of the coil. Mechanical properties throughout the coil shall comply with the minimum values specified.B A minimum and maximum tensile strength has been specified for SS36 Type 2.A1011/A10
46、11M 18a811. Product Marking11.1 In addition to the requirements of Specification A568/A568M for sheet and Specification A749/A749M for strip, each liftor coil shall be marked with the designation shown on the order (CS (Type A, B, or C), DS (Type A or B), SFS (Grade, Carbonor Manganese or both), SS
47、(Grade and for SS36, Type), HSLAS (Grade and Class), HSLAS-F (Grade), or UHSS (Type andGrade). The designation shall be legibly stenciled on the top of each lift or shown on a tag attached to each coil or shipping unit.12. Keywords12.1 carbon steel sheet; carbon steel strip; commercial steel; drawin
48、g steel; special forming steel; high strength-low alloy steel;high strength-low alloy steel with improved formability; hot-rolled steel sheet; hot-rolled steel strip; steel sheet; steel strip;structural steel; ultra-high strength steelA1011/A1011M 18a9APPENDIXES(Nonmandatory Information)X1. BENDING PROPERTIESA1011/A1011M 18a10TABLE X1.1 Suggested Minimum Inside Radius for Cold BendingNOTE 1(t) Equals a radius equivalent to the steel thickness.NOTE 2The suggested radius should be used as a minimum for 90bends in actual shop practice.NOTE 3Material which does not perform satisfactor
