1、Designation: A216/A216M 16 Endorsed by Manufacturers Standardization Societyof the Valve and Fittings IndustryEndorsed by American Foundrymens SocietyUsed in USDOE-NE StandardsStandard Specification forSteel Castings, Carbon, Suitable for Fusion Welding, forHigh-Temperature Service1This standard is
2、issued under the fixed designation A216/A216M; 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 epsilon () indicates an editorial
3、 change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification2covers carbon steel castings forvalves, flanges, fittings, or other pressure-containing parts forhigh-temperature service and of quality
4、 suitable for assemblywith other castings or wrought-steel parts by fusion welding.1.2 Three grades, WCA, WCB, and WCC, are covered inthis specification. Selection will depend upon design andservice conditions, mechanical properties, and the high tem-perature characteristics.1.3 The values stated in
5、 either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.2. Referenc
6、ed Documents2.1 ASTM Standards:3A488/A488M Practice for Steel Castings, Welding, Qualifi-cations of Procedures and PersonnelA703/A703M Specification for Steel Castings, GeneralRequirements, for Pressure-Containing PartsA985/A985M Specification for Steel Investment CastingsGeneral Requirements, for P
7、ressure-Containing Parts2.2 Manufacturers Standardization Society of the Valve andFittings Industry Standard:4SP 55 Steel Castings for Valve, Flanges, and Fittings, andOther Components (Visual Method)3. General Conditions for Delivery3.1 Except for investment castings, castings furnished tothis spec
8、ification 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 confl
9、ict 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 in
10、the purchase order. Failure to comply with thegeneral requirements of Specification A985/A985M consti-tutes nonconformance with this specification. In case of con-flict between the requirements of this specification and Speci-fication A985/A985M, Specification A985/A985M shallprevail.4. Ordering Inf
11、ormation4.1 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,1This specification is under the jurisdiction of ASTM Committee A01 on Steel,
12、Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.18 on Castings.Current edition approved March 1, 2016. Published March 2016. Originallyapproved in 1939. Last previous edition approved in 2014 as A216/A216M 141.DOI: 10.1520/A0216_A0216M-16.2For ASME Boiler and P
13、ressure Vessel Code applications, see related Specifi-cation SA-216/SA-216M in Section II of that code.3For referenced 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
14、 Document Summary page onthe ASTM website.4Available from Manufacturers Standardization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Har
15、bor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.1.3 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
16、castings shall receive a heat treatment proper to theirdesign and chemical composition.5.2 Castings shall be furnished in the annealed, ornormalized, or normalized and tempered condition unlessSupplementary Requirement S15 is specified.5.3 Heat treatment shall be performed after castings havebeen al
17、lowed to cool below the transformation range.6. Temperature Control6.1 Furnace temperatures for heat treating shall be effec-tively controlled by pyrometer.7. Chemical Composition7.1 The steel shall be in accordance with the requirementsas to chemical composition prescribed in Table 1.8. Tensile Req
18、uirements8.1 Steel used for the castings shall be in accordance withthe requirements as to tensile properties prescribed in Table 2.9. Quality9.1 The surface of the casting shall be examined visuallyand shall be free of adhering sand, scale, cracks, and hot tears.Other surface discontinuities shall
19、meet the visual acceptancestandards specified in the order. Visual Method SP-55 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 visualexamination of the resultant
20、cavities.9.2 When additional inspection is desired, SupplementaryRequirements S4, S5, and S10 may be ordered.9.3 The castings shall not be peened, plugged, or impreg-nated to stop leaks.10. Repair by Welding10.1 Repairs shall be made using procedures and weldersqualified under Practice A488/A488M.10
21、.2 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 examina-tion to the same standards that are used to inspect the castings.W
22、hen 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 wall thicknessor 1 in. 25 mm, whichever is smaller, or on castings in whi
23、chany cavity prepared for welding is greater than approximately10 in.265 cm2, shall be radiographed to the same standardsthat are used to inspect the castings.10.3 Castings containing any repair weld that exceeds 20 %of the wall thickness or 1 in. 25 mm, whichever is smaller, orthat exceeds approxim
24、ately 10 in.265 cm2 in area, or that wasmade to correct hydrostatic test defects, shall be stress relievedor heat treated after welding. This mandatory stress relief orheat treatment shall be in accordance with the procedurequalification used.11. Keywords11.1 carbon steel; high temperature; pressure
25、-containingparts; steel castingsTABLE 1 Chemical RequirementsNOTE 1All values are maximums.Element Composition, %GradeWCAUNS J02502GradeWCBUNS J03002GradeWCCUNSJ02503Carbon 0.25A0.30B0.25CManganese 0.70A1.00B1.20CPhosphorus 0.035 0.035 0.035Sulfur 0.035D0.035D0.035DSilicon 0.60 0.60 0.60Specified re
26、sidual elements:Copper 0.30 0.30 0.30Nickel 0.50 0.50 0.50Chromium 0.50 0.50 0.50Molybdenum, max 0.20 0.20 0.20Vanadium 0.03 0.03 0.03Total of these specified residualelementsE1.00 1.00 1.00AFor each reduction of 0.01 % below the specified maximum carbon content, anincrease of 0.04 % manganese above
27、 the specified maximum will be permitted upto a maximum of 1.10 %.BFor each reduction of 0.01 % below the specified maximum carbon content, anincrease of 0.04 % Mn above the specified maximum will be permitted up to amaximum of 1.28 %.CFor each reduction of 0.01 % below the specified maximum carbon
28、content, anincrease of 0.04 % manganese above the specified maximum will be permitted toa maximum of 1.40 %.DFor lower maximum sulfur content, see Supplementary Requirement S52.ENot applicable when Supplementary Requirement S11 is specified.TABLE 2 Tensile RequirementsGradeWCAGradeWCBGradeWCCTensile
29、 strength, ksiMPa60 to 85415 to 58570 to 95485 to 65570 to 95485 to 655Yield strength,Amin,ksi MPa30 205 36 250 40 275Elongation in 2 in.50 mm, min, %B24 22 22Reduction of area,min, %35 35 35ADetermine by either 0.2 % offset method or 0.5 % extension-under-load method.BWhen ICI test bars are used in
30、 tensile testing as provided for in SpecificationA703/A703M, the gage length to reduced section diameter ratio shall be 4 to 1.A216/A216M 162SUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall not apply unless specified in the purchase order.Lists of standardized supplementary r
31、equirements for use at the option of the purchaser are includedin Specifications A703/A703M and A985/A985M. Those which are ordinarily considered suitable foruse with this specification are given below. Others enumerated in Specifications A703/A703M andA985/A985M may be used with this specification
32、upon agreement between the manufacturer andpurchaser.S1. Unspecified ElementsS2. Destruction TestsS3. Bend TestS4. Magnetic Particle InspectionS5. Radiographic InspectionS10. Examination of Weld PreparationS11. Carbon EquivalentS11.1 When specified on the order, the maximum carbonequivalent shall be
33、:Grade Carbon Equivalent, maxWCA 0.50WCB 0.50WCC 0.55S11.2 Carbon equivalent (CE) shall be determined as fol-lows:CE 5 C1Mn61Cr1Mo1V51Ni1Cu15S15. Quench and Temper Heat-TreatmentS16. Requirements for Carbon Steel Castings for Hydro-fluoric Acid Alkylation ServiceS16.1 The maximum carbon equivalent s
34、hall be as follows:CE maximumMaximum specified section thickness less than or equal to 1 in.25 mm0.43Maximum specified section thickness greater than 1 in. 25 mm 0.45S16.2 Determine the carbon equivalent (CE) as follows:CE 5 C1Mn61Cr1Mo1V!51Ni1Cu!15S16.3 Vanadium and niobium maximum content based up
35、onheat analysis shall be:NOTE 1Niobium = columbiumMaximum vanadium 0.02 wt %Maximum niobium 0.02 wt %Maximum vanadium plus niobium 0.03 wt %S16.4 The sum of the nickel and copper contents, basedupon heat analysis, shall not exceed 0.15 wt %.S16.5 The minimum carbon content shall be 0.18 wt %. Themax
36、imum carbon content shall be as required for the appro-priate grade.S16.6 Welding consumables for repair welds shall be of thelow-hydrogen type. E60XX electrodes shall not be used andthe resulting weld chemistry shall meet the same chemistryrequirements as the base metal.S16.7 In addition to the req
37、uirements for product marking inthe specification, an “HF-N” stamp or marking shall beprovided on each casting to identify that the casting complieswith this supplementary requirement.S52. Lower Sulfur MaximumS52.1 When specified in the order the maximum sulfurcontent of Grade WCA, or Grade WCB, or
38、Grade WCC shallnot exceed 0.030.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A216/A216M 141) that may impact the use of this standard. (Approved March 1, 2016.)(1) Deleted S16.1 and renumbered the subsequent paragraphs.A216/A21
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