ASTM A217 A217M-2008 Standard Specification for Steel Castings Martensitic Stainless and Alloy for Pressure-Containing Parts Suitable for High-Temperature Service《高温设备承压部件用合金钢和马氏体不.pdf

《ASTM A217 A217M-2008 Standard Specification for Steel Castings Martensitic Stainless and Alloy for Pressure-Containing Parts Suitable for High-Temperature Service《高温设备承压部件用合金钢和马氏体不.pdf》由会员分享，可在线阅读，更多相关《ASTM A217 A217M-2008 Standard Specification for Steel Castings Martensitic Stainless and Alloy for Pressure-Containing Parts Suitable for High-Temperature Service《高温设备承压部件用合金钢和马氏体不.pdf（4页珍藏版）》请在麦多课文档分享上搜索。

1、Designation: A 217/A 217M 08Endorsed by Manufacturers Standardization Societyof the Valve and Fittings IndustryEndorsed by American Foundrymens SocietyUsed in USDOE-NE StandardsStandard Specification forSteel Castings, Martensitic Stainless and Alloy, forPressure-Containing Parts, Suitable for High-

2、TemperatureService1This standard is issued under the fixed designationA 217/A 217M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscr

3、ipt epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification2covers martensitic stainless steel andalloy steel castings for valves, flanges, fittings, and otherpress

4、ure-containing parts (Note 1) intended primarily forhigh-temperature and corrosive service (Note 2).1.2 One grade of martensitic stainless steel and nine gradesof ferritic alloy steel are covered. Selection will depend ondesign and service conditions, mechanical properties, and thehigh-temperature a

5、nd corrosion-resistant characteristics (Note3).NOTE 1Carbon steel castings for pressure-containing parts are cov-ered by Specification A 216/A 216M. Low alloy quench-and-temperedgrades equivalent to Specification A 217/A 217M grades may be found inboth Specifications A 352/A 352M and A 487/A 487M.NO

6、TE 2The grades covered by this specification represent materialsthat are generally suitable for assembly with other castings or wroughtsteel parts by fusion welding. It is not intended to imply that these gradespossess equal degrees of weldability; therefore, it is the responsibility ofthe purchaser

7、 to establish for himself a suitable welding technique. Sincethese grades possess varying degrees of suitability for high-temperatureand corrosion-resistant service, it is also the responsibility of the purchaserto determine which grade shall be furnished, due consideration beinggiven to the require

8、ments of the applicable construction codes.NOTE 3The committee formulating this specification has includednine grades of materials that are considered to represent basic types offerritic alloy steels suitable for valves, flanges, fittings, and other pressure-containing parts.Additional alloy steels

9、that may better fulfill certain typesof service will be considered for inclusion in this specification by thecommittee as the need becomes apparent.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact

10、equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.2. Referenced Documents2.1 ASTM Standards:3A 216/A 216M Specification for Steel Castings, Carbon,Suitable for Fusion Welding, for High-Temp

11、erature Ser-viceA 352/A 352M Specification for Steel Castings, Ferritic andMartensitic, for Pressure-Containing Parts, Suitable forLow-Temperature ServiceA 487/A 487M Specification for Steel Castings Suitable forPressure ServiceA 488/A 488M Practice for Steel Castings, Welding, Quali-fications of Pr

12、ocedures and PersonnelA 703/A 703M Specification for Steel Castings, GeneralRequirements, for Pressure-Containing PartsA 802/A 802M Practice for Steel Castings, Surface Accep-tance Standards, Visual ExaminationA 985/A 985M Specification for Steel Investment CastingsGeneral Requirements, for Pressure

13、-Containing PartsE 165 Test Method for Liquid Penetrant ExaminationE 709 Guide for Magnetic Particle Testing3. General Conditions for Delivery3.1 Except for investment castings, castings furnished tothis specification shall conform to the requirements of Speci-fication A 703/A 703M including any sup

14、plementary require-ments that are indicated in the purchase order. Failure tocomply with the general requirements of Specification A 703/1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01

15、.18 on Castings.Current edition approved Nov. 1, 2008. Published December 2008. Originallyapproved in 1939. Last previous edition approved in 2007 as A 217/A 217M 07.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-217/SA 217M in Section II of that code.3For refe

16、renced 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 Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Cop

17、yright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.A 703M constitutes nonconformance with this specification. Incase of conflict between the requirements of this specificationand Specification A 703/A 703M, this specification shall pre-vail

18、.3.2 Steel investment castings furnished to this specificationshall conform to the requirements of Specification A 985/A 985M, including any supplementary requirements that areindicated in the purchase order. Failure to comply with thegeneral requirements of Specification A 985/A 985M consti-tutes n

19、onconformance with this specification. In case of con-flict between the requirements of this specification and Speci-fication A 985/A 985M, Specification A 985/A 985M shallprevail.4. Ordering Information4.1 The inquiry and order should include or indicate thefollowing:4.1.1 A description of the cast

20、ing by pattern number ordrawing (dimensional tolerances shall be included on thecasting drawing),4.1.2 Grade of steel,4.1.3 Options in the specification,4.1.4 Whether the castings are to be produced using theinvestment casting process, and4.1.5 The supplementary requirements desired including thesta

21、ndards of acceptance.5. Heat Treatment5.1 All castings shall receive a heat treatment proper to theirdesign and chemical composition.5.2 Castings shall be furnished in the normalized andtempered conditions; Grades WC1, WC4, WC5, WC6, andCA15 shall be tempered at 1100F 595C min; Grades WC9,C5, C12, a

22、nd WC11 shall be tempered at 1250F 675C min;Grade C12A shall be normalized at 1900-1975F 1040-1080C and tempered at 1350-1470F 730-800C.5.3 Heat treatment shall be performed after castings havebeen allowed to cool below the transformation range.6. Chemical Composition6.1 The steel shall be in accord

23、ance with the requirementsas to chemical composition prescribed in Table 1 (Note 4).NOTE 4The role of alloying elements in the development of GradeC12A has been extensively investigated. V and Cb contribute to precipi-tation strengthening by forming fine and coherent precipitation ofM(C,N)X carbo-ni

24、trides in the ferrite matrix. V also precipitates as VNduring tempering or during creep. The two elements are more effective incombination. Therefore, the addition of strong nitride-forming elements,those with a stronger affinity for nitrogen than Cb and V, as deoxidationagents, interferes with thes

25、e high-temperature strengthening mechanisms.44Viswanathan, R. and Bakker, W. T., Materials for Ultra Supercritical FossilPower Plants, EPRI, Palo Alto, CA, 2000. TR-114750.TABLE 1 Chemical RequirementsNOTEAll values are maximum unless otherwise indicated.Composition, %CarbonMolybde-numNickelChromium

26、Molybde-numNickelChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybdenumVanadiumChromiumGrade Identifica-tion SymbolWC1 WC4 WC5 WC6 WC9 WC11 C5 C12 C12A CA15UNS Number J12524 J12082 J22000 J12072 J21890 J11872 J42045 J82090

27、 J84090 J91150Carbon 0.25 0.050.20 0.050.20 0.050.20 0.050.18 0.150.21 0.20 0.20 0.08-0.12 0.15Manganese 0.500.80 0.500.80 0.400.70 0.500.80 0.400.70 0.500.80 0.400.70 0.350.65 0.300.60 1.00Phosphorus 0.04 0.04 0.04 0.04 0.04 0.020 0.04 0.04 0.030 0.040Sulfur 0.045 0.045 0.045 0.045 0.045 0.015 0.04

28、5 0.045 0.010 0.040Silicon 0.60 0.60 0.60 0.60 0.60 0.300.60 0.75 1.00 0.200.50 1.50Nickel . . . 0.701.10 0.601.00 . . . . . . . . . . . . . . . 0.40 1.00Chromium . . . 0.500.80 0.500.90 1.001.50 2.002.75 1.001.50 4.006.50 8.0010.00 8.09.5 11.514.0Molybdenum 0.450.65 0.450.65 0.901.20 0.450.65 0.901

29、.20 0.450.65 0.450.65 0.901.20 0.851.05 0.50Columbium . . . . . . . . . . . . . . . . . . . . . . . . 0.0600.10 . . .Nitrogen . . . . . . . . . . . . . . . . . . . . . . . . 0.0300.070 . . .Vanadium . . . . . . . . . . . . . . . . . . . . . . . . 0.180.25 . . .Specified Residual ElementsAluminum . .

30、 . . . 0.01 . . 0.02 .Copper 0.50 0.50 0.50 0.50 0.50 0.35 0.50 0.50 . . . . . .Nickel 0.50 . . . . . . 0.50 0.50 0.50 0.50 0.50 . . . . . .Chromium 0.35 . . . . . . . . .Titanium . . . . . . . . 0.01 .Tungsten 0.10 0.10 0.10 0.10 0.10 . . . 0.10 0.10 . . . . . .Vanadium . . . . . . . . . . . . . .

31、. 0.03 . . . . . . . . . . . .Zirconium . . . . . . . . . . . . . . . . . . . . . . . . 0.01 . . .Total content ofthese residualelements1.00 0.60 0.60 1.00 1.00 1.00 1.00 1.00A 217/A 217M 0827. Tensile Requirements Tensile Requirements7.1 Steel used for the castings shall be in accordance withthe re

32、quirements as to tensile properties prescribed in Table 2.8. Quality8.1 The surface of the casting shall be examined visuallyand shall be free of adhering sand, scale, cracks, and hot tears.Other surface discontinuities shall meet the visual acceptancestandards specified in the order. Practice A 802

33、/A 802M orother visual standards may be used to define acceptable surfacediscontinuities and finish. Unacceptable visual surface discon-tinuities shall be removed and their removal verified by visualexamination of the resultant cavities. When methods involvinghigh temperature are used in the removal

34、 of discontinuities,castings shall be preheated to at least the minimum tempera-tures in Table 3.8.2 When additional inspection is desired, SupplementaryRequirements S4, S5, and S10 may be ordered.8.3 The castings shall not be peened, plugged, or impreg-nated to stop leaks.9. Repair by Welding9.1 Re

35、pairs shall be made using procedures and weldersqualified under Practice A 488/A 488M.9.2 Weld repaired Grade C12A castings shall be post-weldheat treated at 1350-1470F 730-800C.9.3 Weld repairs shall be inspected to the same qualitystandards that are used to inspect the castings. When castingsare p

36、roduced with Supplementary Requirement S4 specified,weld repairs shall be inspected by magnetic particle examina-tion to the same standards that are used to inspect the castings.When castings are produced with Supplementary RequirementS5 specified, weld repairs on castings that have leaked onhydrost

37、atic test, or on castings in which the depth of any cavityprepared for repair welding exceeds 20 % of the wall thicknessor 1 in. 25 mm, whichever is smaller, or on castings in whichany cavity prepared for welding is greater than approximately10 in.265 cm2, shall be radiographed to the same standards

38、that are used to inspect the castings.9.4 Weld repairs shall be considered major in the case of acasting that has leaked on hydrostatic test, or when the depth ofthe cavity prepared for welding exceeds 20 % of the wallthickness or 1 in. 25 mm, whichever is smaller, or when theextent of the cavity ex

39、ceeds approximately 10 in.265 cm2.All castings with major repair welds shall be thermally stressrelieved or completely reheat-treated. This mandatory stressrelief or reheat-treatment shall be in accordance with thequalified procedure used. Major repairs shall be inspected tothe same quality standard

40、s that are used to inspect the castings.10. Keywords10.1 alloy steel; high temperature; martensitic stainlesssteel; pressure containing; steel castingsTABLE 2 Tensile RequirementsGradeTensileStrength,ksiMPaYieldStrength,Amin, ksiMPaElonga-tion in2in.50 mmmin, %BReduc-tion ofArea,min, %WC1 65 450 to

41、9062035 240 24 35WC4, WC5, WC6,WC970 485 to 9565540 275 20 35WC11 80 550 to 10572550 345 18 45C5, C12 90 620 to 11579560 415 18 35C12A 85 585 to 11076060 415 18 45CA15 90 620 to 11579565 450 18 30ADetermine by either 0.2 % offset method or 0.5 % extension-under-loadmethod.BWhen ICI test bars are use

42、d in tensile testing as provided for in SpecificationA 703/A 703M, the gage length to reduced section diameter ratio shall be 4 to 1.TABLE 3 Minimum Preheat TemperaturesGrade Thickness, in. mmMinimumPreheatTemperature,F CWC158 and underOver58 15.950 10250 120WC4 All 300 150WC5 All 300 150WC6 All 300

43、 150WC9 All 400 200WC11 All 300 150C5 All 400 200C12 All 400 200C12A All 400 200CA15 All 400 200A 217/A 217M 083SUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall not apply unless specified in the purchase order.Lists of standardized supplementary requirements for use at the op

44、tion of the purchaser are includedin Specifications A 703/A 703M and A 985/A 985M. Those which are ordinarily considered suitablefor use with this specification are given below. Others enumerated in Specifications A 703/A 703MandA 985/A 985M may be used with this specification upon agreement between

45、 the manufacturer andpurchaser.S1. Unspecified ElementsS2. Destruction TestsS3. Bend TestsS4. Magnetic Particle InspectionS5. Radiographic InspectionS10. Examination of Weld PreparationS10.1 The method of performing the magnetic particle orliquid penetrant test shall be in accordance with Test Metho

46、dE 165 or Guide E 709.S13. Hardness TestS21. Heat Treatment Furnace RecordS22. Heat TreatmentS51. Mandatory Postweld Heat TreatmentS51.1 All castings with repair welds shall receive a manda-tory thermal stress relief or complete reheat treatment inaccordance with the qualified procedure after all we

47、ld repairs.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A 217/A 217M 07) that may impact the use of this standard. (Approved Nov. 1, 2008.)(1) Revised the introductory paragraph to the list of Supple-mentary Requirements to ref

48、erence Specification A 985/A 985M for investment castings ordered to this specification.ASTM 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

49、 the validity of any such patent rights, and the riskof infringement of 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 additional standardsand should be addressed to ASTM International He