1、Designation: A694/A694M 08A694/A694M 13Standard Specification forCarbon and Alloy Steel Forgings for Pipe Flanges, Fittings,Valves, and Parts for High-Pressure Transmission Service1This standard is issued under the fixed designation A694/A694M; the number immediately following the designation indica
2、tes 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 change since the last revision or reapproval.1. Scope*1.1 This specification covers forged or rolled
3、steel pipe flanges, forged fittings, valves, and parts suitable for use withhigh-strength transmission-service pipe. Included are flanges, fittings, and similar parts ordered either to dimensions specified bythe purchaser or to ASME or MSS dimensional standards referenced in Section 2.1.2 Several gr
4、ades of material, based on minimum yield strength requirements, are covered, as indicated in Table 1.1.3 Supplementary Requirements are provided. Supplementary Requirement S 1 is provided for use when purchaser approvalis required for repair welding.1.4 This specification is expressed in both inch-p
5、ound units and in SI units. However, unless the order specifies the applicable“M” specification designation (SI units), the material shall be furnished to inch-pound units.1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI
6、unitsare shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be usedindependently of the other. Combining values from the two systems may result in nonconformance with the standard.2. Referenced Documents2.1 In addition to those reference docume
7、nts listed in Specification A961/A961M, the following list of standards apply to thisspecification:2.2 ASTM Standards:2A53/A53M Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessA106/A106M Specification for Seamless Carbon Steel Pipe for High-Temperature ServiceA38
8、1 Specification for Metal-Arc-Welded Steel Pipe for Use With High-Pressure Transmission SystemsA707/A707M Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature ServiceA788/A788M Specification for Steel Forgings, General RequirementsA961/A961M Specification for Common Requiremen
9、ts for Steel Flanges, Forged Fittings, Valves, and Parts for PipingApplications2.3 ASME Standards:ASME B 16.5 Steel Pipe Flanges and Flanged Fittings3ASME B 16.9 Steel Butt-Welding Fittings3ASME B 16.10 Face-to-Face and End-to-End Dimensions of Ferrous Valves3ASME B 16.11 Forged Steel Fittings, Sock
10、et Welding and Threaded3ASME B 16.28 Wrought Steel Butt-Welding Short Radius Elbows3ASME B 16.47 Large Diameter Steel Flanges32.4 MSS Standards:4MSS SP-44 Standard for Steel Pipe Line FlangesMSS SP-75 Specification for High-Test Welding Fittings1 This specification is under the jurisdiction ofASTM C
11、ommittee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.22on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.Current edition approved Oct. 1, 2008Oct. 1, 2013. Publishe
12、d November 2008October 2013. Originally approved in 1974. Last previous edition approved in 20032008as A694/A694M 03.A694/A694M 08. DOI: 10.1520/A0694_A0694M-08. 10.1520/A0694_A0694M-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceast
13、m.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.4 Available fro
14、m Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous ve
15、rsion. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes se
16、ction appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1MSS SP-95 Swage (d) Nipples and Bull PlugsMSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings2.5 API Standard:5L Specification for Line
17、 Pipe53. Ordering Information3.1 It is the purchasers responsibility to specify in the purchase order all ordering information necessary to purchase the neededmaterial. In addition to the ordering guidelines in Specification A961/A961M, orders should include the following information:3.1.1 Additiona
18、l requirements (see 8.1 and 10.1).4. General Requirements4.1 Product furnished to this specification shall conform to the requirements of Specification A961/A961M, including anysupplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements ofSpec
19、ification A961/A961M constitutes nonconformance with this specification. In case of conflict between the requirements of thisspecification and Specification A961/A961M, this specification shall prevail.5. Manufacture5.1 Melting Process:5.1.1 The steel shall be made by any of the following processes:
20、 open hearth, electric furnace, or basic oxygen. The steel shallbe fully deoxidized.5.1.2 The steel shall be carbon steel, high-strength low-alloy steel, or alloy steel, as agreed upon between the manufacturer andpurchaser. Analysis of the steel used, including all alloying elements, shall be report
21、ed by the manufacturer to the purchaser. Thesteel shall be suitable for field welding (as established by the purchaser) to other fittings, valve materials and flanges, and to pipemanufactured under the following ASTM specifications: Specification A53/A53M, Specification A106/A106M, SpecificationA381
22、, and API Standard 5L pipe, as well as to fittings manufactured under MSS SP-75.5.2 Manufacturing Practice:5.2.1 Material for forgings shall consist of ingots or blooms, billets, slabs, or bars of forged or rolled form and cut to the requiredlength by a suitable process.5.2.2 The finished product sh
23、all be a forging as defined in the Terminology section of Specification A788/A788M.5.2.3 Hot working shall be sufficient to develop a wrought structure throughout the part.5.2.4 Flanges shall not be machined directly from plate nor from solid bar stock.5.3 Heat Treatment:5.3.1 All items shall be hea
24、t treated. Heat treatment of carbon steel and high-strength low-alloy steel may consist ofnormalizing, normalizing-and-tempering, or quenching-and-tempering. Heat treatment of alloy steel may consist of normalizingand precipitation heat treatment or quenching and precipitation heat treatment.5.3.2 T
25、he tempering temperature shall be at least 1000 F 540 C. The precipitation heat treatment of the alloy steel shall bein the range from 1000 to 1225 F 540 to 665 C.6. Chemical Composition6.1 A chemical heat analysis in accordance with Specification A961/A961M shall be made and conform to the requirem
26、ents asto chemical composition prescribed in Table 2.5 Available from American Petroleum Institute (API), 1220 L. St., NW, Washington, DC 20005-4070, http:/www.api.org.TABLE 1 Tensile RequirementsGrade Yield Strength (0.2 %Offset), min, ksi MPaTensile Strength,min, ksi MPaElongation in 2in. or 50 mm
27、,min %F42 42 290 60 415 20F46 46 315 60 415 20F48 48 330 62 425 20F50 50 345 64 440 20F52 52 360 66 455 20F56 56 385 68 470 20F60 60 415 75 515 20F65 65 450 77 530 20F70 70 485 82 565 18A694/A694M 1326.2 High-strength low-alloy steels shall be of specified alloy element composition, with the element
28、s covered in 6.1 restrictedwithin the limits prescribed therein as may be necessary to ensure weldability and specified minimum tensile properties. Whenhigh-strength low-alloy steel is furnished, appropriate procedures are required for field welding.6.3 Alloy steel shall conform to the requirements
29、for Grade L 5 of Specification A707/A707M.7. Tensile Requirements7.1 The material shall conform to the requirements as to tensile properties prescribed in Table 1, when tested in accordance withthe mechanical testing requirements of Specification A961/A961M.7.2 The tension test specimen shall be obt
30、ained from a production forging, or from an integral prolongation representative ofthe hub location of a flange, or the heaviest cross section of a fitting, valve, or other part within the scope of this specification.Alternatively, the test specimen may be taken from a separately forged test block w
31、hich has been taken from the same heat of steelas the production forgings, and which has been reduced by forging in a manner similar to that for the forgings it represents.7.2.1 The test specimen shall represent all forgings from the same heat and heat treatment load whose maximum thicknessesdo not
32、exceed the thickness of the test forging or blank by more than 14 in. 6 mm.7.3 The axis of the tension test sample shall be located in the test forging, or prolongation so as to represent mid-wall of theflange hub, or mid-wall of the thickest cross section of the valve, fitting, or other part.7.4 Th
33、e axis of the tension test specimen shall be oriented parallel to the direction of maximum forging work for fittings, valves,and other parts, except for flanges when the specimen shall be oriented in the tangential direction.7.5 One tension test shall be taken from each heat in each heat treatment l
34、oad, and shall be representative of the largest flangehub, or valve or fitting wall thickness in the load.7.6 When heat treatment is done either continuous or batch type furnaces in which the working zones are controlled to within6 25 F 6 14 C of the required heat treatment temperature, and when the
35、 furnace is equipped with functioning recordingpyrometers such that complete heat treatment records are available, then one tension test from each heat shall be required insteadof from each heat in each heat treatment load. However, this provision is limited to forgings with heat treated weights not
36、exceeding 10 000 lbslb 4540 kg, and the test forging must accompany a production charge.8. Workmanship, Finish, and Appearance8.1 The forgings shall be free of injurious defects as defined in Specification A961/A961M.8.2 Repair by Welding of Injurious DefectsRepair of injurious defects shall be perm
37、itted at the discretion of the manufacturerin accordance with Specification A961/A961M.8.2.1 Deposited weld metal shall be capable of meeting all mechanical properties upon heat treatment.8.2.2 All forgings to be repaired by welding shall be repair welded prior to heat treatment.9. Retests9.1 If any
38、 of the results of the tension tests of any lot do not conform to the requirements specified, the manufacturer may reheattreat such lots, but not more than twice, except with the approval of the purchaser, on the basis of satisfactory metallurgicalevidence that the cause of failure is curable and th
39、e quality of the material is satisfactory.10. Rejection and Rehearing10.1 The purchaser shall comply with the requirements of Specification A961/A961M.11. Certification11.1 Certification shall comply with See Specification A961/A961M. However, if high-strength low-alloy steel is used, theanalysis an
40、d the heat number or manufacturers heat identification shall be reported to the purchaser.11.2 The test report shall include the following:11.2.1 Chemical analysis results, Section 6 (Table 2).TABLE 2 Chemical RequirementsComposition, %Heat Analysis Product AnalysisCarbon, max 0.26 0.265Manganese, m
41、ax 1.60 1.64Phosphorus, max 0.025 0.030Sulfur, max 0.025 0.030Silicon 0.150.35 0.100.40A694/A694M 13311.2.2 Tensile properties, Section 7 (Table 1), report the yield strength and tensile strength, in ksi MPa, elongation andreduction in area, in percent,11.2.3 Type heat treatment, 7.6,11.2.4 Any supp
42、lementary testing required by the purchase order.12. Product Marking12.1 Product marking shall comply with Specification A961/A961M.12.1 Forgings repaired by welding shall be markedIn addition to marking requirements of Specification A961/A961Mwith, theletter “W” following the ASTM designation.follo
43、wing additional marking requirements shall apply:12.1.1 Forgings repaired by welding shall be marked with the letter “W” following the ASTM designation.12.2 Bar CodingIn addition to the requirements in 12.1 and 12.212.1.1, bar coding is acceptable as a supplementalidentification method. The purchase
44、r may specify in the order a specific bar coding system to be used. The bar coding system, ifapplied at the discretion of the supplier, should be consistent with one of the published industry standards for bar coding. If usedon small parts, the bar code may be applied to the box or a substantially a
45、pplied tag.13. Keywords13.1 high strength low alloy steel; pipe fittings, steel; piping applications; pressure containing parts; steel flanges; steel forgings,alloy; steel forgings, carbon; steel valvesSUPPLEMENTARY REQUIREMENTSThe following supplementary requirements shall apply only when specified
46、 by the purchaser in theinquiry, contract, and order:S1. Special FlangesS1.1 Flanges shall meet the requirements of MSS SP-44, except the chemical requirements shall conform to Table 2.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this specification since the las
47、t issue,A694/A694M 03A694/A694M 08, that may impact the use of this specification. (Approved October 1,2008)2013)(1) Increased the manganeseRevised Sections 11 level inand 12 Table 2.on certification and marking.ASTM International takes no position respecting the validity of any patent rights assert
48、ed 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 t
49、he 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 Headquarters. 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 C
