1、Designation: A980 97 (Reapproved 2010)Standard Specification forSteel, Sheet, Carbon, Ultra High Strength Cold Rolled1This standard is issued under the fixed designation A980; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the yea
2、r of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript 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 produc
3、tis available 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.2. Refe
4、renced 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 information
5、 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,3.1.5 Di
6、mensions (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 report
7、 (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 specification sh
8、all 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 shall
9、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 Properties7.1
10、 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. When the amount of finishedmaterial from a heat or lot is less than 50 t
11、ons, one test shall bemade. When material rolled from one heat differs by 0.050 in.or more in thickness, one tension test shall be made from thethickest and thinnest material regardless of the weight repre-sented.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless
12、Steel and Related Alloys and is the direct responsibility of Subcommit-teeA01.19 on Steel Sheet and Strip.Current edition approved Oct. 1, 2010. Published October 2010. Originallyapproved in 1997. Last previous edition approved in 2003 as A98097(2003). DOI:10.1520/A0980-97R10.2For referenced ASTM st
13、andards, 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.TABLE 1 Chemical RequirementsComposition - Weight % Heat AnalysisElement Grade130 16
14、0 190 220Carbon, 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 0.01 0.01 0.011Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7.1.
15、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 test specimens shall be taken from a loca-tion approximate
16、ly 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 of the requiredtensile strength.7.1.4.2 A retest shall consist of one random specimen fromthe same heat or
17、 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.8.2 Oiling:8.2.1 Unless otherwise specified, the sheet shall be o
18、iled.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 cast or heat analysis or themechanical properties, or both. The rep
19、ort 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;ultra high-strengthASTM International takes no position respectin
20、g 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 of such rights, are entirely their own responsibility.This standa
21、rd 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 additional standardsand should be addressed to ASTM Internationa
22、l 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 to the ASTM Committee on Standards, at the address shown below.Th
23、is 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 the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax)
24、 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 ElementsElementAComposition 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, ksi130 130160 160190 190220 220A980 97 (2010)2
