1、Designation: A980/A980M 11Standard Specification forSteel, Sheet, Carbon, Ultra High Strength Cold Rolled1This standard is issued under the fixed designation A980/A980M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of l
2、ast revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers a cold rolled ultra highstrength carbon steel sheet in coils or cut lengths. The productis av
3、ailable in four strength levels. The steels strength isobtained by water quenching from an austenitic temperatureresulting in a martensitic microstructure. This product isintended for miscellaneous applications where ultra highstrength, weight saving, and good weldability are important.1.2 The value
4、s 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. Combiningvalues from the two systems may result in non-conformancewith the standard.
5、2. Referenced Documents2.1 ASTM Standards:2A568/A568M Specification for Steel, Sheet, Carbon, Struc-tural, and High-Strength, Low-Alloy, Hot-Rolled andCold-Rolled, General Requirements for3. Ordering Information3.1 It is the purchasers responsibility to specify in thepurchase order all ordering info
6、rmation necessary to purchasethe needed material. Examples of such information include, butare not limited to:3.1.1 ASTM specification number and year of issue,3.1.2 Name of material (cold rolled ultra high strength steelsheet),3.1.3 Grade (see Table 1),3.1.4 Specify oiled or not oiled as required,3
7、.1.5 Dimensions (thickness, width and whether cut lengthsor coils),3.1.6 Coil size (must include inside diameter, outside diam-eter, and maximum mass),3.1.7 Quantity,3.1.8 Application (show part identification and description),3.1.9 Special Requirements (if required), and3.1.10 Cast or heat analysis
8、 report (request if required).4. Materials and Manufacture4.1 Melting PracticeThis sheet shall be produced fromaluminum killed steel.4.2 AnnealingThe material shall be continuous annealedto austenitic temperatures and water quenched.5. General Requirements5.1 Materials furnished under this specifica
9、tion shall con-form to the applicable requirements of the current edition ofSpecification A568/A568M unless otherwise provided herein.6. Chemical Composition6.1 The cast or heat analysis shall conform to the require-ments prescribed in Table 1 and Table 2.6.1.1 Each of the elements listed in Table 2
10、 shall be includedin the report of the cast or heat analysis. Where the amount ofcopper nickel, chromium or molybdenum is less than 0.02 %,the analysis may be reported as 0.02 %. When the amount ofvanadium or columbium is less than 0.008 %, the analysis maybe reported as 0.008 %.7. Mechanical Proper
11、ties7.1 Tension Tests:7.1.1 RequirementsMaterials as represented by the testspecimen shall conform to the tensile requirements specified inTable 3.7.1.2 Number of TestsTwo tests shall be made from eachheat or from each lot of 50 tons 45 000 kg. When the amountof finished material from a heat or lot
12、is less than 50 tons1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of Subcommit-teeA01.19 on Steel Sheet and Strip.Current edition approved Nov. 1, 2011. Published November 2011. Originallyapproved in 1
13、997. Last previous edition approved in 2003 as A98097(2010). DOI:10.1520/A0980_A0980M-11.2For 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 Summ
14、ary page onthe ASTM website.TABLE 1 Chemical RequirementsComposition - Weight % Heat AnalysisElement Grade130 900 160 1100 190 1300 220 1500Carbon, max 0.10 0.15 0.23 0.28Manganese, max 0.60 0.60 0.60 0.60Phosphorus, max 0.030 0.030 0.030 0.030Sulfur, max 0.035 0.035 0.035 0.035Aluminum, min 0.01 0.
15、01 0.01 0.011Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.45 000 kg, one test shall be made. When material rolled fromone heat differs by 0.050 in. 1.27 mm or more in thickness,one tension test shall be made from the thickest and t
16、hinnestmaterial regardless of the weight represented.7.1.3 Location and Orientation:7.1.3.1 Tension test specimens shall be taken at a pointimmediately adjacent to the material to be qualified.7.1.3.2 Tension test samples shall be taken from the fullthickness of the sheet as rolled.7.1.3.3 Tension t
17、est specimens shall be taken from a loca-tion approximately halfway between the center of the sheet andthe edge of the material as-rolled.7.1.4 Retests:7.1.4.1 A retest shall be permitted if the results of anoriginal tension specimen are within 2 ksi 15 MPa of therequired tensile strength.7.1.4.2 A
18、retest shall consist of one random specimen fromthe same heat or lot as the original specimen.7.1.4.3 If the results of the retest specimen meet the speci-fied requirements, the cast or test lot shall be accepted.8. Finish and Appearance8.1 Surface FinishThe sheet shall have a matte surfacetexture.8
19、.2 Oiling:8.2.1 Unless otherwise specified, the sheet shall be oiled.8.2.2 When required, the sheet may be specified to be notoiled (dry).8.3 EdgesThe sheet shall have cut edges.9. Certification and Reports9.1 When required by the purchase order, the producer shallfurnish the test results of the cas
20、t or heat analysis or themechanical properties, or both. The report shall include thepurchase order number, ASTM designation number and yearissue, and cast or lot number correlating the test data with thematerial represented.10. Keywords10.1 carbon steel sheet; cold rolled steel sheet; steel sheet;u
21、ltra high-strengthASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement o
22、f such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for
23、additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known t
24、o the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at
25、 the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 2 Limits on Unspecified ElementsElementAComp
26、osition Weight % Heat AnalysisCopperWhen specified, min .20When not specified, max .20Nickel, max 0.20Chromium, max 0.15Molybdenum, max 0.06Vanadium, max 0.008Columbium, max 0.008AMinimum copper added.TABLE 3 Mechanical RequirementsTensile StrengthGrade Min, ksi MPa130 900 130 900160 1100 160 1100190 1300 190 1300220 1500 220 1500A980/A980M 112
