1、Designation:A815/A815M141Standard Specification forWrought Ferritic,Ferritic/Austenitic,and MartensiticStainless Steel Piping Fittings1This standard is issued under the fixed designation A815/A815M;the number immediately following the designation indicates the yearof original adoption or,in the case
2、 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.1NOTEEditorially corrected Table 1 in December 2015.1.Scope*1.1 This specification covers two general classe
3、s,WP andCR,of wrought ferritic,ferritic/austenitic,and martensiticstainless steel fittings of seamless and welded constructioncovered by the latest revision of Specification A960/A960M.Fittings differing from these standards may be furnished inaccordance with Supplementary Requirement S58 of Specifi
4、-cation A960/A960M.1.1.1 Class WP fittings are subdivided into four subclasses:Classes WP-S,WP-W,WP-WX,and WP-WU.They aremanufactured to the requirements of Specification A960/A960M,and they shall have pressure ratings compatible with13.2.Class WP-S fittings are those manufactured from seam-less pro
5、duct by a seamless method of manufacture(markedwith class symbol WP-S);Class WP-W fittings are those whichcontain welds where the fitting fabrication or constructionwelds have been radiographed(marked with class symbolWP-W);and Class WP-WX fittings are those which containwelds where all welds have b
6、een radiographed(marked withclass symbol WP-WX);and Class WP-WU fittings are thosewhich contain welds where all welds have been ultrasonicallytested(marked with class symbol WP-WU).1.1.2 Class CR fittings are those manufactured to therequirements of MSS SP-43,and they shall have pressureratings comp
7、atible with 13.3.1.2 This specification does not apply to cast fittings.1.3 Optional supplementary requirements are provided.When desired,one or more of these may be specified in theorder.1.4 This specification is expressed in both inch-pound unitsand in SI units.However,unless the order specifies t
8、heapplicable“M”specification designation SI units,the mate-rial shall be furnished to inch-pound units.1.5 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.Within the text,theSI units are shown in brackets.The values stated in eachsystem may not be ex
9、act equivalents;therefore,each systemshall be used independently of the other.Combining valuesfrom the two systems may result in non-conformance with thestandard.2.Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless Steel
10、sA388/A388M Practice for Ultrasonic Examination of SteelForgingsA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsA763 Practices for Detecting Susceptibility to IntergranularAttack in Ferritic Stainless SteelsA923 Test Methods for Detecting Detrimental Intermetallic
11、Phase in Duplex Austenitic/Ferritic Stainless SteelsA960/A960M Specification for Common Requirements forWrought Steel Piping FittingsE165 Practice for Liquid Penetrant Examination for GeneralIndustry2.2 ASME Standards:3B16.9 Factory-Made Wrought Butt-Welding FittingsB16.11 Forged Fittings,Socket-Wel
12、ding and Threaded2.3 MSS Standards:4MSS SP-43 Standard Practice for Light Weight StainlessSteel Butt-Welding FittingsMSS SP-79 Socket-Welding Reducer Inserts1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibilit
13、y of SubcommitteeA01.22 on Steel Forgings and Wrought Fittings for Piping Applications and BoltingMaterials for Piping and Special Purpose Applications.Current edition approved Oct.1,2014.Published October 2014.Originallyapproved in 1983.Last previous edition approved in 2013 as A815/A815M13a.DOI:10
14、.1520/A0815_A0815M-14E01.2For 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 Document Summary page onthe ASTM website.3Available from American Society of Mecha
15、nical Engineers(ASME),ASMEInternational Headquarters,Two Park Ave.,New York,NY 10016-5990,http:/www.asme.org.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 e
16、nd of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 MSS SP-83 Steel Pipe Unions,Socket-Welding andThreadedMSS SP-95 Swage(d)Nipples and Bull PlugsMSS SP-97 Integrally Reinforced Forged Branch OutletFittingsSocket Welding,Threaded and ButtweldingEnds2.4 ASME Boiler and Pressure Vessel Codes:3Section VIII Division ISection IX2.5 ASNT Standard:5SNT-TC-1A Recommended Practice for NondestructiveTesting Personnel Qualificatio
