1、Designation: A 217/A 217M 07Endorsed 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 (e) 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 otherpres
4、sure-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
5、and 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.N
6、OTE 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 purchase
7、r 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 requir
8、ements 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 inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in bracke
10、ts. The values stated in eachsystem are not exact equivalents; therefore, each system mustbe used independently of the other. Combining values from thetwo systems may result in nonconformance with the specifi-cation. Inch-pound units are applicable for material ordered toSpecification A 217 and SI u
11、nits for materials ordered toSpecification A 217M.2. Referenced Documents2.1 ASTM Standards:3A 216/A 216M Specification for Steel Castings, Carbon,Suitable for Fusion Welding, for High-Temperature Ser-viceA 352/A 352M Specification for Steel Castings, Ferritic andMartensitic, for Pressure-Containing
12、 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 Procedures and PersonnelA 703/A 703M Specification for Steel Castings, GeneralRequirements, for Pressure-Containi
13、ng 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-Containing PartsE 165 Test Method for Liquid Penetrant ExaminationE 709 Guide for Magnetic Particle Examinatio
14、n3. 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 supplementary require-ments that are indicated in the purchase order. Failure tocomply with the general requir
15、ements 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 SubcommitteeA01.18 on Castings.Current edition approved March 1, 2007. Published March 2007. Originallyapproved in 1939. L
16、ast previous edition approved in 2004 as A 217/A 217M 04.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-217/SA 217M in Section II of that code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.o
17、rg. 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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United State
18、s.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.3.2 Steel investment castings furnished to this specificationshall conform to the requirements of Specificat
19、ion 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 nonconformance with this specification. In case of con-flict between the requirements of this specification an
20、d 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 casting by pattern number ordrawing (dimensional tolerances shall be included on thecasting drawing),4.1.2 Grade
21、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 thestandards of acceptance.5. Heat Treatment5.1 All castings shall receive a heat treatment proper to theirdesign a
22、nd 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, and WC11 shall be tempered at 1250F 675C min;Grade C12A shall be normalized at 1900-1975F 1040-1080C and tempe
23、red 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 accordance with the requirementsas to chemical composition prescribed in Table 1 (Note 4).NOTE 4The role of alloyin
24、g 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-nitrides in the ferrite matrix. V also precipitates as VNduring tempering or during creep. The two elements are
25、 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 these high-temperature strengthening mechanisms.44Viswanathan, R. and Bakker, W. T., Materials for Ultra Supercri
26、tical FossilPower Plants, EPRI, Palo Alto, CA, 2000. TR-114750.TABLE 1 Chemical RequirementsNOTEAll values are maximum unless otherwise indicated.Composition, %CarbonMolybde-numNickelChromiumMolybde-numNickelChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-
27、numChromiumMolybde-numChromiumMolybdenumVanadiumChromiumGrade Identifica-tion SymbolWC1 WC4 WC5 WC6 WC9 WC11 C5 C12 C12A CA15UNS Number J12524 J12082 J22000 J12072 J21890 J11872 J42045 J82090 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 0.50
28、0.80 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 0.045 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 0.6
29、01.00 . . . . . . . . . . . . . . . 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 0.901.20 0.450.65 0.450.65 0.901.20 0.851.05 0.50Columbium . . . . . . . . . . . . . . . . . . . . . . . . 0.0600.
30、10 . . .Nitrogen . . . . . . . . . . . . . . . . . . . . . . . . 0.0300.070 . . .Vanadium . . . . . . . . . . . . . . . . . . . . . . . . 0.180.25 . . .Specified Residual ElementsAluminum . . . . . 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
31、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 . . . . . . . . . . . . . . . 0.03 . . . . . . . . . . . .Zirconium . . . . . . . . . . . . . . . . . . . . . . . . 0.01 . . .Total conte
32、nt ofthese residualelements1.00 0.60 0.60 1.00 1.00 1.00 1.00 1.00A 217/A 217M 0727. Tensile Requirements Tensile Requirements7.1 Steel used for the castings shall be in accordance withthe requirements as to tensile properties prescribed in Table 2.8. Quality8.1 The surface of the casting shall be e
33、xamined 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/A 802M orother visual standards may be used to define acceptable surfacediscontinuities and finish. Unaccept
34、able 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 of discontinuities,castings shall be preheated to at least the minimum tempera-tures in Table 3.8.2 When add
35、itional 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 Repairs shall be made using procedures and weldersqualified under Practice A 488/A 488M.9.2 Weld repaired Grade
36、 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 produced with Supplementary Requirement S4 specified,weld repairs shall be inspected by magnetic particle exam
37、ina-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 onhydrostatic test, or on castings in which the depth of any cavityprepared for repair welding exceeds 20 % of the wal
38、l 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 standardsthat are used to inspect the castings.9.4 Weld repairs shall be considered major in the case of acasting that
39、 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 exceeds approximately 10 in.265 cm2.All castings with major repair welds shall be thermally stressrelieved or c
40、ompletely reheat-treated. This mandatory stressrelief or reheat-treatment shall be in accordance with thequalified procedure used. Major repairs shall be inspected tothe same quality standards that are used to inspect the castings.10. Keywords10.1 alloy steel; high temperature; martensitic stainless
41、steel; pressure containing; steel castingsTABLE 2 Tensile RequirementsGradeTensileStrength,ksiMPaYieldStrength,Amin, ksiMPaElonga-tion in2in.50 mmmin, %BReduc-tion ofArea,min, %WC1 65 450 to 9062035 240 24 35WC4, WC5, WC6,WC970 485 to 9565540 275 20 35WC11 80 550 to 10572550 345 18 45C5, C12 90 620
42、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 used in tensile testing as provided for in SpecificationA 703/A 703M, the gage length to reduced section diamete
43、r 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 150WC9 All 400 200WC11 All 300 150C5 All 400 200C12 All 400 200C12A All 400 200CA15 All 400 200A 217/A 217M
44、073SUPPLEMENTARY REQUIREMENTSThe following supplementary requirements 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 A 703/A 703M. Those which are ordinarily considered suitab
45、le for use with thisspecification are given below. Others enumerated in Specification A 703/A 703M may be used withthis specification upon agreement between the manufacturer and purchaser.S1. Unspecified ElementsS2. Destruction TestsS3. Bend TestsS4. Magnetic Particle InspectionS5. Radiographic Insp
46、ectionS10. Examination of Weld PreparationS10.1 The method of performing the magnetic particle orliquid penetrant test shall be in accordance with Test MethodE 165 or Guide E 709.S13. Hardness TestS21. Heat Treatment Furnace RecordS22. Heat TreatmentS51. Mandatory Postweld Heat TreatmentS51.1 All ca
47、stings with repair welds shall receive a manda-tory thermal stress relief or complete reheat treatment inaccordance with the qualified procedure after all weld repairs.SUMMARY OF CHANGESCommittee A01 has identified the location of the selected changes to this standard since the last issue(A 217/A 21
48、7M - 04) that may impact the use of this standard. (Approved xxx x, xxxx.)(1) Table 1 has been revised for Grade C12A to reduce thealuminum maximum, to add a limit for titanium and zirconium,and to show that vanadium is a required element, not a residual.ASTM International takes no position respecti
49、ng 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 standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either
