ASTM A560 A560M-2012 Standard Specification for Castings Chromium-Nickel Alloy《镍铬合金铸件的标准规格》.pdf

1、Designation: A560/A560M 11 A560/A560M 12Standard 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 revi

2、sion. A number 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 castings intended for heat-resisting and elevated-temperature corrosionapplica

3、tions, such as structural members, containers, supports, hangers, spacers, and the like, in corrosive environments up to2000F 1090C.1.2 The values stated in either inch-poundSI units or SIinch-pound units are to be regarded separately as standard. Within thetest, the SI units are shown in brackets.

4、The values stated in each system aremay not be exact equivalents; therefore, each systemmustshall be used independently of the other. Combining values from the two systems may result in nonconformancenon-conformance with the specification. standard.2. Referenced Documents2.1 ASTM Standards:2A370A781

5、/A781M Test Methods and Definitions for Mechanical Testing of Steel ProductsSpecification for Castings, Steel andAlloy, Common Requirements, for General Industrial UseA781/A781MA957/A957M Specification for Investment Castings, Steel and Alloy, Common Requirements, for GeneralIndustrial Use3. General

6、 Conditions for Delivery3.1 Material Except for steel investment castings, material furnished to this specification shall conform to the requirements ofSpecification A781/A781M, including any supplementary requirements that are indicated in the purchase order. Failure to complywith the general requi

7、rements of Specification A781/A781M constitutes nonconformance with this specification. In case of conflictbetween the requirements of this specification and Specification A781/A781M, this specification shall prevail.3.2 Steel investment castings furnished to this specification shall conform to the

8、requirements of Specification A957/A957M,including any supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirementsof Specification A957/A957M constitutes nonconformance with this specification. In case of conflict with this specification andSp

9、ecification A957/A957M, A957/A957M shall prevail.4. Ordering Information4.1 The purchaser should specify the alloy grade desired and whether tension tests are required, and shall include standards ofacceptance where necessary. Orders for material under this specification should include the following

10、 information in propersequence:4.1.1 Quantity;4.1.2 Specification and grade (50 Cr-50 Ni, R20500; 60 Cr-40 Ni, R20600; 50 Cr-50 Ni-Cb, R20501);4.1.3 Description of the casting by pattern number or drawing;4.1.4 Options in the specification:4.1.4.1 Process,4.1.4.2 Heat treatment,4.1.4.3 Tensile prope

11、rties,4.1.4.4 Tension tests,4.1.4.5 Charpy impact tests, and4.1.4.6 Test specimens or test bars.4.1.5 Supplementary requirements desired, including standards of acceptance.5. Materials and Manufacture5.1 ProcessThe alloy for the castings shall be made by the electric-arc or induction-furnace process

12、 unless otherwise agreedupon between the manufacturer and the purchaser. Castings may be poured in sand, shell, investment, or centrifugal molds.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19

13、428-2959. United States15.2 Heat TreatmentCastings may be shipped in the as-cast condition. If heat treatment is required, the treatment shall beestablished by mutual consent between the manufacturer and purchaser and shall be so specified in the inquiry, purchase order, orcontract.6. Chemical Compo

14、sition6.1 The castings shall conform to the requirements as to chemical composition prescribed in Table 1.7. Tensile Properties7.1 Tensile properties, if required, of the alloy used for the castings shall conform to the requirements prescribed in Table 2.7.2 Tension tests, if required, shall be perf

15、ormed in accordance with Test Methods and Definitions A370.8. Test Specimens8.1 Test specimens, if required, shall be prepared in accordance with Test Methods and Definitions A370. Test bars shall bepoured in special blocks from the same heat as the castings represented. Test bars, if required, shal

16、l be furnished in sufficientnumber to furnish specimens for the test required in Section 9.8.2 The test coupons shall be cast from the same melt from which the castings they represent are poured, and shall representthe full melting practice. Chemical composition of the test coupons shall conform to

17、the requirements prescribed in Table 1.8.3 Tension test specimens shall be machined to the form and dimensions of the standard round 2-in. 50-mm gage lengthspecimen shown in Fig. 4 of Test Methods and Definitions A370.8.3 Impact test specimens shall conform to the length and cross section dimensions

18、 of the specimens shown in Fig. 10 of TestMethods and Definitions A370. The impact specimens are to be broken unnotched.un-notched.1 This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.18

19、on Castings.Current edition approved May 1, 2011Nov. 1, 2012. Published June 2011November 2012. Originally approved in 1966. Last previous edition approved in 20102011 asA560/A560M 05A560/A560M 11. (2010). DOI: 10.1520/A0560_A0560M-11.10.1520/A0560_A0560M-12.2 For referenced ASTM standards, visit th

20、e ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.TABLE 1 Chemical RequirementsA,BElement Composition, %Grade50 Cr-50 Ni(R20500)60 Cr-40 Ni(R20600)50

21、 Cr-50 Ni-Cb(R20501)Carbon, max 0.10 0.10 0.10Carbon 0.10 0.10 0.10Manganese, max 0.30 0.30 0.30Manganese 0.30 0.30 0.30Silicon, max 1.00 1.00 0.50Silicon 1.00 1.00 0.50Sulfur, max 0.02 0.02 0.02Sulfur 0.02 0.02 0.02Phosphorus, max 0.02 0.02 0.02Phosphorus 0.02 0.02 0.02Nitrogen, max 0.30 0.30 0.16N

22、itrogen 0.30 0.30 0.16Nitrogen + Carbon, max . . . . . . 0.20Nitrogen + Carbon . . . . . . 0.20Iron, max 1.00 1.00 1.00Iron 1.00 1.00 1.00Titanium, max 0.50 0.50 0.50Titanium 0.50 0.50 0.50Aluminum, max 0.25 0.25 0.25Aluminum 0.25 0.25 0.25Columbium . . . . . . 1.41.7Chromium 48.052.0 58.062.0 47.05

23、2.0Nickel balance balance balanceA The total of the nickel, chromium, and columbium contents must exceed 97.5 %.B Where ellipses (.) appear All values are maximum, unless a range or minimumis indicated. Where ellipses appear (.) in this table, there is no requirement.mini-mum and analysis for the el

24、ement need not be determined or reported.A560/A560M 1229. Number of Tests and Retests9.1 Tension TestOne tension test, if required, shall be made from each melt.9.2 Impact TestOne unnotched Charpy impact test, if required, shall be made from each melt.9.3 Retests:9.3.1 Retest of a duplicate specimen

25、 will be allowed if the results 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 test specimen is less than specified in Table 2 and any part of the fractureis more than 34 in. 19.0 mm from the center of t

26、he gage length, as indicated by scribe scratches marked on the specimen beforetesting, a retest shall be allowed.10. Keywords10.1 chromium-nickel alloys; corrosion; high temperature applications; investment castings; steel castingsSUPPLEMENTARY REQUIREMENTSThe following supplementary requirements sh

27、all not apply unless specified in the purchase order. Alist of standardized supplementary requirements for use at the option of the purchaser is included inSpecificationSpecifications A781/A781M and A957/A957M. Those whichthat are ordinarily consid-ered suitable for use with this specification are g

28、iven below. Others enumerated in Specification-Specifications A781/A781M and A957/A957M may be used with this specification upon agreementbetween the manufacturer and the purchaser.S2. Radiographic ExaminationS3. Liquid Penetrant ExaminationTABLE 2 Room Temperature Tensile and Charpy RequirementsA50

29、 Cr-50 Ni 60 Cr-40 Ni 50 Cr-50 Ni-CbTensile strength, 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 . . .A Where ellipses (.) appear in this table, there is no requirement

30、.A560/A560M 123S8. MarkingSUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue,(A560/A560M - 05A560/A560M 11 (2010), ), that may impact the use of this standard. (Approved Nov. 1,2012May 1, 2011.).)(1) Added ellipsesEditorially revised

31、 1.2footnote to Tables 1 and 2(2) Revised sections/subsections 2, 3, 7.2 (deleted), 8, and 10 and introductory paragraph to Supplementary Requirements toreference investment castings and to delete references to A370.(3) Revised Section 4 and Table 1.ASTM International takes no position respecting th

32、e 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 standard i

33、s 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 International He

34、adquarters. 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.This s

35、tandard 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 124