1、Designation:A403/A403M11 Designation: A403/A403M 12Standard Specification forWrought Austenitic Stainless Steel Piping Fittings1This standard is issued under the fixed designation A403/A403M; the number immediately following the designation indicates the yearof original adoption or, in the case of r
2、evision, 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specificat
3、ion covers wrought stainless steel fittings for pressure piping applications.21.2 Several grades of austenitic stainless steel alloys are included in this specification Grades are designated with a prefix, WPor CR, based on the applicable ASME or MSS dimensional and rating standards, respectively.1.
4、3 For each of the WP stainless grades, several classes of fittings are covered, to indicate whether seamless or weldedconstruction was utilized. Class designations are also utilized to indicate the nondestructive test method and extent ofnondestructive examination (NDE). Table 1 is a general summary
5、 of the fitting classes applicable to all WP grades of stainless steelcovered by this specification. There are no classes for the CR grades. Specific requirements are covered elsewhere.1.4 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies t
6、he 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 unitsare shown in brackets. The values stated in each system may
7、not be exact equivalents; therefore, each system shall be usedindependently of the other. Combining values from the two systems may result in non-conformance with the standard.1.6 This specification does not apply to cast steel fittings. Austenitic stainless steel castings are covered in Specificati
8、onsA351/A351M, A743/A743M, and A744/A744M.2. Referenced Documents2.1 ASTM Standards:3A351/A351M Specification for Castings, Austenitic, for Pressure-Containing PartsA743/A743M Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Applica-tionA744/A744M Spe
9、cification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe ServiceA751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel ProductsA960/A960M Specification for Common Requirements for Wrought Steel Piping FittingsE112 Test Methods for Determining Average Grain
10、 SizeE165 Practice for Liquid Penetrant Examination for General Industry2.2 ASME Standards:4ASME B16.9 Factory-Made Wrought Steel Butt-Welding FittingsASME B16.11 Forged Steel Fittings, Socket-Welding and Threaded2.3 MSS Standards:5MSS SP-25 Standard Marking System for Valves, Fittings, Flanges, and
11、 UnionsMSS SP-43 Standard Practice for Light Weight Stainless Steel Butt-Welding FittingsMSS SP-79 Socket-Welding Reducer InsertsMSS SP-83 Steel Pipe Unions, Socket-Welding and ThreadedMSS SP-95 Swage(d) Nipples and Bull Plugs1This specification is under the jurisdiction ofASTM CommitteeA01 on Steel
12、, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.22on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.Current edition approved Oct.May 1, 2011.2012. Published November 2011.June 2012.
13、 Originally approved in 1956. Last previous edition approved in 20102011 asA403/A403M10a.A403/A403M11. DOI: 10.1520/A0403_A0403M-112.2For ASME Boiler and Pressure Vessel Code applications see related Specification SA-403 in Section II of that Code.3For referenced ASTM standards, visit the ASTM websi
14、te, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.4Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Av
15、e., New York, NY 10016-5990, http:/www.asme.org.5Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http:/www.mss-.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard
16、an indication of what changes have been made to the previous version. 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
17、to be considered the official document.*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 States.MSS SP-97 Integrally Reinforced Forged Branch Outlet FittingsSocket Welding, Thre
18、aded and Buttwelding Ends2.4 ASME Boiler and Pressure Vessel Code:4Section VIII Division I, Pressure VesselsSection IX, Welding Qualifications2.5 AWS Standards:6A 5.4 Specification for Corrosion-Resisting Chromium and Chromium-Nickel Steel Covered Welding ElectrodesA 5.9 Specification for Corrosion-
19、Resisting Chromium and Chromium-Nickel Steel Welding Rods and Bare ElectrodesA 5.11 Specification for Nickel and Nickel-Alloy Welding Electrodes for Shielded Metal Arc WeldingA5.14 Specification for Nickel and Nickel-Alloy Bare Welding Rods and Electrodes2.6 ASNT:7SNT-TC-1A (1984) Recommended Practi
20、ce for Nondestructive Testing Personnel Qualification and Certification3. Common Requirements and Ordering Information3.1 Material furnished to this specification shall conform to the requirements of Specification A960/A960M including anysupplementary requirements that are indicated in the purchase
21、order. Failure to comply with the common requirements ofSpecification A960/A960M constitutes nonconformance with this specification. In case of conflict between this specification andSpecification A960/A960M, this specification shall prevail.3.2 Specification A960/A960M identifies the ordering infor
22、mation that should be complied with when purchasing material tothis specification.4. Material4.1 The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products that conform to thechemical requirements in Table 2. See Table 3 for a list of common names.4.2 T
23、he steel shall be melted by one of the following processes:4.2.1 Electric furnace (with separate degassing and refining optional),4.2.2 Vacuum furnace, or4.2.3 One of the former followed by vacuum or electroslag-consumable remelting.4.3 If secondary melting is employed, the heat shall be defined as
24、all ingots remelted from a primary heat.4.4 Grain SizeAnnealed Alloys UNS N08810 and UNS N08811 shall conform to an average grain size of ASTM No. 5 orcoarser.5. Manufacture5.1 FormingForging or shaping operations may be performed by hammering, pressing, piercing, extruding, upsetting, rolling,bendi
25、ng, fusion welding, machining, or by a combination of two or more of these operations. The forming procedure shall be soapplied that it will not produce injurious defects in the fittings.5.2 All fittings shall be heat treated in accordance with Section 6.5.3Grade5.3 Grade WP fittings ordered as Clas
26、s S shall be of seamless construction and shall meet all requirements of ASMEB16.9, ASME B16.11, MSS SP-79, MSS SP-83, MSS SP-95, or MSS SP-97.5.4 Grade WP fittings ordered as Class W shall meet the requirements of ASME B16.9 and:5.4.1 Shall have all pipe welds made by mill or the fitting manufactur
27、er with the addition of filler metal radiographicallyexamined throughout the entire length in accordance with the Code requirements stated in 5.5, and,5.4.2 Radiographic inspection is not required on single longitudinal seam welds made by the starting pipe manufacturer if madewithout the addition of
28、 filler metal; and5.4.3 Radiographic inspection is not required on longitudinal seam fusion welds made by the fitting manufacturer when all ofthe following conditions have been met:5.4.3.1 No addition of filler metal,5.4.3.2 Only one welding pass per weld seam, and,6Available from American Welding S
29、ociety (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http:/www.aws.org.7Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http:/www.asnt.org.TABLE 1 Fitting Classes for WP GradesClass Construction Nondestructive ExaminationS
30、 Seamless NoneW Welded Radiography or UltrasonicWX Welded RadiographyWU Welded UltrasonicA403/A403M 122TABLE 2 Chemical RequirementsNOTE 1Where an ellipsis (.) appears in this table, there is no requirement.GradeAComposition, %Grade WP Grade CR UNS Des-ignationCBMnBPBSBSiBNi Cr Mo Ti N2CCOthersWPXM-
31、19 CRXM-19 S20910 0.06 4.06.0 0.045 0.030 1.00 11.513.5 20.523.5 1.503.00 . . . 0.200.40DWP20CB CR20CB N08020 0.07 2.00 0.045 0.035 1.00 32.038.0 19.021.0 2.003.00 . . . Cu 3.0-4.0Cb 8XC min,1.00 maxWP6XN CR6XN N08367 0.030 2.00 0.040 0.030 1.00 23.525.5 20.022.0 6.07.0 . . . 0.180.25 Cu 0.75WP700 C
32、R700 N08700 0.04 2.00 0.040 0.030 1.00 24.026.0 19.023.0 4.35.0 Cu0.50Cb 8XC minWPNIC CRNIC N08800 0.10 1.50 0.045 0.015 1.00 30.035.0 19.023.0 . . . 0.150.60 . . . Al 0.150.60Cu 0.75Fe 39.5 minWPNIC10 CRNIC10 N08810 0.05 0.10 1.50 0.045 0.015 1.00 30.035.0 19.023.0 . . . 0.150.60 . . . Al 0.150.60C
33、u 0.75Fe 39.5 minWPNIC11 CRNIC11 N08811 0.60 0.10 1.50 0.040 0.015 1.00 30.035.0 19.023.0 . . . 0.150.60 . . . Al 0.150.60Cu 0.75Fe 39.5 minWP904L CR904L N08904 0.020 2.00 0.045 0.035 1.00 23.028.0 19.023.0 4.05.0 . . . 0.10 Cu 1.02.0WP1925 CR1925 N08925 0.020 1.00 0.045 0.030 0.50 24.026.0 19.021.0
34、 6.07.0 0.100.20 Cu 0.8-1.5WP1925N CR1925N N08926 0.020 2.00 0.030 0.010 0.50 24.026.0 19.021.0 6.07.0 . . . 0.150.25 Cu 0.5-1.5WP304 CR304 S30400 0.08 2.00 0.045 0.030 1.00 8.011.0 18.020.0 . . . . . . . . . . . .WP304L CR304L S30403 0.030E2.00 0.045 0.030 1.00 8.012.0 18.020.0 . . . . . . . . . .
35、. .WP304H CR304H S30409 0.040.10 2.00 0.045 0.030 1.00 8.011.0 18.020.0 . . . . . . . . . . . .WP304N CR304N S30451 0.08 2.00 0.045 0.030 1.00 8.011.0 18.020.0 . . . . . . 0.100.16.WP304LN CR304LN S30453 0.030 2.00 0.045 0.030 1.00 8.011.0 18.020.0 . . . . . . 0.100.16.WP309 CR309 S30900 0.20 2.00 0
36、.045 0.030 1.00 12.015.0 22.024.0 . . . . . . . . . . . .WP310S CR310S S31008 0.08 2.00 0.045 0.030 1.00 19.022.0 24.026.0 . . . . . . . . . . . .WPS31254 CRS31254 S31254 0.020 1.00 0.030 0.010 0.80 17.518.5 19.520.5 6.06.5 . . . 0.180.22Cu 0.501.00WP316 CR316 S31600 0.08 2.00 0.045 0.030 1.00 10.01
37、4.0 16.018.0 2.003.00 . . . . . . . . .WP316L CR316L S31603 0.030E2.00 0.045 0.030 1.00 10.014.0F16.018.0 2.003.00 . . . . . . . . .WP316H CR316H S31609 0.040.10 2.00 0.045 0.030 1.00 10.014.0 16.018.0 2.00-3.00 . . . . . . . . .WP316N CR316N S31651 0.08 2.00 0.045 0.030 1.00 10.013.0 16.018.0 2.003
38、.00 . . . 0.10-0.16.WP316LN CR316LN S31653 0.030 2.00 0.045 0.030 1.00 10.013.0 16.018.0 2.003.00 . . . 0.100.16.WP317 CR317 S31700 0.08 2.00 0.045 0.030 1.00 11.015.0 18.020.0 3.04.0 . . . . . . . . .WP317L CR317L S31703 0.030 2.00 0.045 0.030 1.00 11.015.0 18.020.0 3.04.0 . . . . . . . . .WPS31725
39、 CRS31725 S31725 0.030 2.00 0.045 0.030 1.00 13.517.5 18.020.0 4.05.0 . . . 0.20 . . .WPS31726 CRS31726 S31726 0.030 2.00 0.045 0.030 1.00 13.517.5 17.020.0 4.05.0 . . . 0.100.20.WPS31727 CRS31727 S31727 0.030 1.00 0.030 0.030 1.00 14.516.5 17.519.0 3.84.5 . . . 0.150.21Cu 2.84.0WPS32053 CRS32053 S3
40、2053 0.030 1.00 0.030 0.010 1.00 24.026.0 22.024.0 5.06.0 . . . 0.170.22.WP321 CR321 S32100 0.08 2.00 0.045 0.030 1.00 9.012.0 17.019.0 . . .G. .WP321H CR321H S32109 0.040.10 2.00 0.045 0.030 1.00 9.012.0 17.019.0 . . .H. .WPS33228 CRS33228 S33228 0.040.08 1.00 0.020 0.015 0.30 31.033.0 26.028.0 . .
41、 . . . . . . . Ce 0.050.10Al 0.025Cb 0.61.0WPS34565 CRS34565 S34565 0.030 5.07.0 0.030 0.010 1.00 16.018.0 23.025.0 4.05.0 . . . 0.400.60Cb 0.10WP347 CR347 S34700 0.08 2.00 0.045 0.030 1.00 9.012.0 17.019.0 . . . . . . . . .IWP347H CR347H S34709 0.040.10 2.00 0.045 0.030 1.00 9.012.0 17.019.0 . . .
42、. . . . . .JWP347LN CR347LN S34751 0.0050.0202.00 0.045 0.030 1.00 9.013.0 17.019.0 . . . . . . . . . Cb 0.200.50,KN0.060.10CWP348 CR348 S34800 0.08 2.00 0.045 0.030 1.00 9.012.0 17.019.0 . . . . . . . . . Cb+Ta=103(C)1.10Ta 0.10Co 0.20WP348H CR348H S34809 0.040.10 2.00 0.045 0.030 1.00 9.012.0 17.0
43、19.0 . . . . . . . . . Cb+Ta=83(C)1.10Ta 0.10Co 0.20WPS38815 CRS38815 S38815 0.030 2.00 0.040 0.020 5.5-6.5 13.0-17.0 13.0-15.0 0.75-1.50 . . . . . . Cu 0.75-1.50Al 0.30ASee Section 14 for marking requirements.BMaximum, unless otherwise indicated.CThe method of analysis for nitrogen shall be a matte
44、r of agreement between the purchaser and manufacturer.A403/A403M 1235.4.3.3 Fusion welding from one side only.5.4.4 In place of radiographic examination, welds made by the fitting manufacturer may be ultrasonically examined inaccordance with the Code requirements stated in 5.6.5.5 Grade WP fittings
45、ordered as Class WX shall meet the requirements ofASME B16.9 and shall have all welds, whether madeby the fitting manufacturer or the starting material manufacturer, radiographically examined throughout their entire length inaccordance with Paragraph UW-51 of Section VIII, Division I, of the ASME Bo
46、iler and Pressure Vessel Code.5.6 Grade WP fittings ordered as Class WU shall meet the requirements ofASME B16.9 and shall have all welds, whether madeby the fitting manufacturer or the starting material manufacturer, ultrasonically examined throughout their entire length inaccordance with Appendix
47、12 of Section VIII, Division 1 of ASME Boiler and Pressure Vessel Code.5.7 The radiography or ultrasonic examination of welds for this class of fittings may be done at the option of the manufacturer,either prior to or after forming.5.8 Personnel performing NDE examinations shall be qualified in acco
48、rdance with SNT-TC-1A.5.9 Grade CR fittings shall meet the requirements of MSS SP-43 and do not require nondestructive examination.DColumbium 0.100.30 %; Vanadium, 0.100.30 %.EFor small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040 % is necessary
49、in grades TP304L and TP316L. Smalloutside diameter tubes are defined as those less than 0.500 in. 12.7 mm in outside diameter and light wall tubes as those less than 0.049 in. 1.24 mm in average wallthickness.FOn pierced tubing, the nickel may be 11.016.0 %.G5X(C+N2)0.70.H4X(C+N2)0.70.IThe columbium content shall be not less than ten times the carbon content and not more than 1.10 %.JThe columbium content shall be not less tha
