ASTM A560 A560M-2011 Standard Specification for Castings Chromium-Nickel Alloy《镍铬合金铸件的标准规格》.pdf

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1、Designation: A560/A560M 11Standard Specification forCastings, Chromium-Nickel Alloy1This standard is issued under the fixed designation A560/A560M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number

2、 in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers chromium-nickel alloy cast-ings intended for heat-resisting and elevated-temperature cor-rosion applications, such

3、 as structural members, containers,supports, hangers, spacers, and the like, in corrosive environ-ments up to 2000F 1090C.1.2 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the test, the SIunits are shown in brackets. The values stated in ea

4、ch systemare not exact equivalents; therefore, each system must be usedindependently of the other. Combining values from the twosystems may result in nonconformance with the specification.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel Prod

5、uctsA781/A781M Specification for Castings, Steel and Alloy,Common Requirements, for General Industrial Use3. General Conditions for Delivery3.1 Material furnished to this specification shall conform tothe requirements of Specification A781/A781M, including anysupplementary requirements that are indi

6、cated in the purchaseorder. Failure to comply with the general requirements ofSpecification A781/A781M constitutes nonconformance withthis specification. In case of conflict between the requirementsof this specification and Specification A781/A781M, thisspecification shall prevail.4. Ordering Inform

7、ation4.1 The purchaser should specify the alloy grade desiredand whether tension tests are required, and shall includestandards of acceptance where necessary.5. Materials and Manufacture5.1 ProcessThe alloy for the castings shall be made by theelectric-arc or induction-furnace process unless otherwi

8、seagreed upon between the manufacturer and the purchaser.Castings may be poured in sand, shell, investment, or centrifu-gal molds.5.2 Heat TreatmentCastings may be shipped in the as-castcondition. If heat treatment is required, the treatment shall beestablished by mutual consent between the manufact

9、urer andpurchaser and shall be so specified in the inquiry, purchaseorder, or contract.6. Chemical Composition6.1 The castings shall conform to the requirements as tochemical composition prescribed in Table 1.7. Tensile Properties7.1 Tensile properties, if required, of the alloy used for thecastings

10、 shall conform to the requirements prescribed in Table2.7.2 Tension tests, if required, shall be performed in accor-dance with Test Methods and Definitions A370.8. Test Specimens8.1 Test specimens, if required, shall be prepared in accor-dance with Test Methods and Definitions A370. Test bars shallb

11、e poured in special blocks from the same heat as the castingsrepresented. Test bars, if required, shall be furnished insufficient number to furnish specimens for the test required inSection 9.8.2 The test coupons shall be cast from the same melt fromwhich the castings they represent are poured, and

12、shall repre-sent the full melting practice. Chemical composition of the testcoupons shall conform to the requirements prescribed in Table1.8.3 Tension test specimens shall be machined to the formand dimensions of the standard round 2-in. 50-mm gagelength specimen shown in Fig. 4 of Test Methods and

13、Defini-tions A370.8.4 Impact test specimens shall conform to the length andcross section dimensions of the specimens shown in Fig. 10 ofTest Methods and Definitions A370. The impact specimens areto be broken unnotched.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stain

14、less Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved May 1, 2011. Published June 2011. Originallyapproved in 1966. Last previous edition approved in 2010 as A560/A560M 05(2010). DOI: 10.1520/A0560_A0560M-11.2For referenced ASTM sta

15、ndards, 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.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Int

16、ernational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.9. Number of Tests and Retests9.1 Tension TestOne tension test, if required, shall bemade from each melt.9.2 Impact TestOne unnotched Charpy impact test, ifrequired, shall be made from each melt.9.3 Retes

17、ts:9.3.1 Retest of a duplicate specimen will be allowed if theresults of the mechanical tests for any lot do not conform to therequirements specified in Table 2.9.3.2 If the percentage of elongation of any tension testspecimen is less than specified in Table 2 and any part of thefracture is more tha

18、n34 in. 19.0 mm from the center of thegage length, as indicated by scribe scratches marked on thespecimen before testing, a retest shall be allowed.10. Keywords10.1 chromium-nickel alloys; corrosion; high temperatureapplications; steel castingsSUPPLEMENTARY REQUIREMENTSThe following supplementary re

19、quirements shall not apply unless specified in the purchase order. Alist of standardized supplementary requirements for use at the option of the purchaser is included inSpecification A781/A781M. Those which are ordinarily considered suitable for use with thisspecification are given below. Others enu

20、merated in SpecificationA781/A781M may be used with thisspecification upon agreement between the manufacturer and the purchaser.S2. Radiographic ExaminationS3. Liquid Penetrant ExaminationS8. MarkingSUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard sinc

21、e the last issue,(A560/A560M - 05 (2010), that may impact the use of this standard. (Approved May 1, 2011.)(1) Added ellipses footnote to Tables 1 and 2.TABLE 1 Chemical RequirementsA,BElement Composition, %Grade50 Cr-50 Ni(R20500)60 Cr-40 Ni(R20600)50 Cr-50 Ni-Cb(R20501)Carbon, max 0.10 0.10 0.10Ma

22、nganese, max 0.30 0.30 0.30Silicon, max 1.00 1.00 0.50Sulfur, max 0.02 0.02 0.02Phosphorus, max 0.02 0.02 0.02Nitrogen, max 0.30 0.30 0.16Nitrogen + Carbon, max . . . . . . 0.20Iron, max 1.00 1.00 1.00Titanium, max 0.50 0.50 0.50Aluminum, max 0.25 0.25 0.25Columbium . . . . . . 1.41.7Chromium 48.052

23、.0 58.062.0 47.052.0Nickel balance balance balanceAThe total of the nickel, chromium, and columbium contents must exceed97.5 %.BWhere ellipses (.) appear in this table, there is no requirement.TABLE 2 Room Temperature Tensile and Charpy RequirementsA50 Cr-50 Ni 60 Cr-40 Ni 50 Cr-50 Ni-CbTensile stre

24、ngth, min, ksi MPa 80 550 110 760 80 550Yield point, min, ksi MPa 50 340 85 590 50 345Elongation in 2 in. 50 mm,min, %5.0 . . . 5.0Impact, unnotched, Charpy, min,ftlbf J50 78 10 14 . . .AWhere ellipses (.) appear in this table, there is no requirement.A560/A560M 112ASTM International takes no positi

25、on 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 of such rights, are entirely their own responsibility

26、.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 additional standardsand should be addressed to ASTM

27、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 to the ASTM Committee on Standards, at the address sh

28、own 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 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/).A560/A560M 113