1、Designation: A217/A217M 11Endorsed 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-Te
2、mperatureService1This standard is issued under the fixed designation A217/A217M; 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 superscript
3、 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 otherpressure
4、-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 and
5、corrosion-resistant characteristics (Note3).NOTE 1Carbon steel castings for pressure-containing parts are cov-ered by Specification A216/A216M. Low alloy quench-and-temperedgrades equivalent to Specification A217/A217M grades may be found inboth Specifications A352/A352M and A487/A487M.NOTE 2The gra
6、des 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 to establi
7、sh 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 requirements of th
8、e 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 that may be
9、tter 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 equivalents
10、; 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:3A216/A216M Specification for Steel Castings, Carbon,Suitable for Fusion Welding, for High-Temperature Ser-v
11、iceA352/A352M Specification for Steel Castings, Ferritic andMartensitic, for Pressure-Containing Parts, Suitable forLow-Temperature ServiceA487/A487M Specification for Steel Castings Suitable forPressure ServiceA488/A488M Practice for Steel Castings, Welding, Quali-fications of Procedures and Person
12、nelA703/A703M Specification for Steel Castings, General Re-quirements, for Pressure-Containing PartsA802/A802M Practice for Steel Castings, Surface Accep-tance Standards, Visual ExaminationA985/A985M Specification for Steel Investment CastingsGeneral Requirements, for Pressure-Containing PartsE165 P
13、ractice for Liquid Penetrant Examination for GeneralIndustryE709 Guide for Magnetic Particle Testing2.2 AWS Specifications:4A5.5/A5.5M LowAlloy Steel Electrodes for Shielded MetalArc WeldingA5.23/A5.23M Low-Alloy Steel Electrodes and Fluxes forSubmerged Arc WeldingA5.28/A5.28M Low Alloy Steel Electr
14、odes and Rods forGas Shielded Arc Welding1This 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 Oct. 1, 2011. Published November 2011. Originallyapprov
15、ed in 1939. Last previous edition approved in 2010 as A217/A217M 10.DOI: 10.1520/A0217_A0217M-11.2For 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, orcontac
16、t ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Available from American Welding Society, 550 NW LeJuene Rd., Miami, FL33126, http:/www.aws.org.1*A Summary of Changes section appears at t
17、he end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.A5.29/A5.29M Low-Alloy Steel Electrodes for Flux CoredArc Welding3. General Conditions for Delivery3.1 Except for investment castings, castings furnished tothis s
18、pecification shall conform to the requirements of Speci-fication A703/A703M including any supplementary require-ments that are indicated in the purchase order. Failure tocomply with the general requirements of Specification A703/A703M constitutes nonconformance with this specification. Incase of con
19、flict between the requirements of this specificationand Specification A703/A703M, this specification shall pre-vail.3.2 Steel investment castings furnished to this specificationshall conform to the requirements of Specification A985/A985M, including any supplementary requirements that areindicated i
20、n the purchase order. Failure to comply with thegeneral requirements of SpecificationA985/A985M constitutesnonconformance with this specification. In case of conflictbetween the requirements of this specification and Specifica-tion A985/A985M, Specification A985/A985M shall prevail.4. Ordering Infor
21、mation4.1 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 of steel,4.1.3 Options in the specification,4.1.4 Whether the castings are to be produce
22、d 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 and chemical composition.5.2 Castings shall be furnished in the normalized andtempered co
23、nditions; 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 thermally treated, either by normalizing-and-tempering or by accelerated cooling from the austenitizingtemperature by air blasting or
24、 liquid quenching, followed bytempering. C12Acastings shall be austenitized at 1900-1975F1040-1080C 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
25、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 ofTABLE 1 Chemical
26、 RequirementsANOTEAll values are maximum unless otherwise indicated.Composition, %CarbonMolybde-numNickelChromiumMolybde-numNickelChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybde-numChromiumMolybdenumVanadiumChromiumGrade Identifica-tion
27、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 0.500.80 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
28、.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 0.601.00 . . . . . . . . . . . . . . . 0.40 1.00Chromium . . . 0.500.80 0.500.90
29、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 . . . . . . . . . . . . . . . . . . . . . 0.03 0.0600.10 . . .Nitrogen . . . . . . . . . . . . . . . . . . . . . . . . 0.0300.070 . .
30、 .Vanadium . . . . . . . . . . . . . . . . . . . . . 0.06 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 0.50 0.50 0.50 0.50 . . . . . .Chromium 0.35 . . . . . . . . .Titanium . . . . .
31、 . . . 0.01 .Tungsten 0.10 0.10 0.10 0.10 0.10 . . . 0.10 0.10 . . . . . .Vanadium . . . . . . . . . . . . . . . 0.03 . . . . . . . . . . . .Zirconium . . . . . . . . . . . . . . . . . . . . . . . . 0.01 . . .Total content ofthese residualelements1.00 0.60 0.60 1.00 1.00 1.00 1.00 1.00AWhere ellipse
32、s () appear in this table, there is no requirement, and the element need not be analyzed for or reported.A217/A217M 112M(C,N)X carbo-nitrides in the ferrite matrix. V also precipitates as VNduring tempering or during creep. The two elements are more effective incombination. Therefore, the addition o
33、f strong nitride-forming elements,those with a stronger affinity for nitrogen than Cb and V, as deoxidationagents, interferes with these high-temperature strengthening mechanisms.57. Mechanical Properties7.1 Steel used for the castings shall conform to the require-ments as to tensile properties give
34、n in Table 2.7.2 C12A castings shall be hardness tested in accordancewith Supplementary Requirement S13, and shall have a Brinellhardness of 185-248 HBW.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 d
35、iscontinuities shall meet the visual acceptancestandards specified in the order. PracticeA802/A802M or othervisual standards may be used to define acceptable surfacediscontinuities and finish. Unacceptable visual surface discon-tinuities shall be removed and their removal verified by visualexaminati
36、on 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 Hollow castings of Grade C12A, larger than NPS 4 DN100, and whose internal surfaces are not accessible to t
37、hevisual examination in 8.1, shall be examined by the ultrasonicexamination prescribed in Supplementary Requirement S7.Castings producing a signal equal to or greater than the lowestsignal produced by the referenced discontinuities shall beidentified and separated from the acceptable castings. The a
38、reaproducing the signal may be re-examined. Such castings shallbe rejected if the test signals were produced by imperfectionsthat cannot be identified or were produced by cracks orcrack-like imperfections. Such castings may be repaired. To beaccepted, a repaired casting shall pass the ultrasonic exa
39、mina-tion and shall meet the minimum wall thickness requirementsof the purchase order.8.3 When additional inspection is desired, SupplementaryRequirements S4, S5, and S10 may be ordered.8.4 The castings shall not be peened, plugged, or impreg-nated to stop leaks.9. Repair by Welding9.1 Repairs shall
40、 be made using procedures and weldersqualified under Practice A488/A488M.9.2 All repair welds in C12A castings shall be made withone of the following welding processes and consumables:SMAW,A5.5/A5.5M E90XX-B9; SAW,A5.23/A5.23M EB9 +Neutral Flux; GTAW, A5.28/A5.28M ER90S-B9, and FCAW,A5.29/A5.29M E91
41、T1-B9. In addition, the sum of the Ni+Mncontent, in all welding consumables used to weld repair C12Acastings, shall not exceed 1.0%. Weld repaired Grade C12Acastings shall be post-weld heat treated at 1350-1470F 730-800C.9.3 Weld repairs shall be inspected to the same qualitystandards that are used
42、to inspect the castings. When castingsare produced 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 rep
43、airs on castings that have leaked onhydrostatic 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,
44、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 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
45、smaller, or when theextent of the cavity exceeds 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 the5Viswanathan, R. and Bakker, W. T., Materia
46、ls for Ultra Supercritical FossilPower Plants, EPRI, Palo Alto, CA, 2000. TR-114750.TABLE 2 Tensile RequirementsAGradeTensileStrength,ksiMPaYieldStrength,Bmin, ksiMPaElonga-tion in2in.50 mmmin, %CReduc-tion ofArea,min, %WC1 65 450 to 9062035 240 24 35WC4, WC5, WC6,WC970 485 to 9565540 275 20 35WC11
47、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 30AWhere ellipses () appear in this table, there is no requirement.BDetermine by either 0.2 % offset method or 0.5 % extension-under-loadmethod.CWhen ICI test bars are used
48、 in tensile testing as provided for in SpecificationA703/A703M, 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 15
49、0WC9 All 400 200WC11 All 300 150C5 All 400 200C12 All 400 200C12A All 400 200CA15 All 400 200A217/A217M 113qualified 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 stainlesssteel; pressure containing; steel castingsSUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall not apply unless s
