1、Designation: A 338 84 (Reapproved 2004)Standard Specification forMalleable Iron Flanges, Pipe Fittings, and Valve Parts forRailroad, Marine, and Other Heavy Duty Service atTemperatures Up to 650F (345C)1This standard is issued under the fixed designation A 338; the number immediately following the d
2、esignation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers
3、malleable iron flanges, pipefittings, and valve parts, including parts to be assembled for usein railroad, marine, and other heavy duty service applicationswhere fittings furnished in accordance with American NationalStandard for Malleable Iron Threaded Fittings, Class 150 and300 (ANSI B16.3) are no
4、t considered adequate.1.2 Service shall include up to 650F (345C).22. Referenced Documents2.1 ASTM Standards:3A 47 Specification for Ferritic Malleable Iron CastingsA 153 Specification for Zinc Coating (Hot-Dip) on Iron andSteel Hardware2.2 American National Standards:4B 2.1 Pipe ThreadsB 16.3 Malle
5、able Iron Threaded Fittings, Class 150 and 3002.3 Other Standards:Hand Book H28, Section VI, Screw-Thread Standards forFederal Services, 19445SP-25-1936 Standard Marking System for Valves, Fittings,Flanges, and Unions63. Process3.1 The castings shall be made in accordance with Specifi-cation A 47.4.
6、 Materials and Manufacture4.1 The sizes, shapes, and dimensions of the fittings, cov-ered by ANSI B16.3 shall conform to the requirements thereinspecified.4.2 Screwed pipe fittings, unions, union fittings, and globeand angle valves that are covered by the various standards andrecommended practices a
7、s issued by the Association of Ameri-can Railroads shall conform to the requirements therein speci-fied.4.3 All pipe threads, unless otherwise specified, shall be inaccordance with ANSI B2.1. (Standards for pipe threads arealso available in Section VI of Screw-Thread Standards forFederal Services.)4
8、.4 Zinc coatings on fittings which are required to begalvanized by the hot-dip process shall conform to the require-ments for Class A castings as prescribed in Specification A 153,except on surfaces where it is the practice to machine aftergalvanizing.5. Manufacture Control and Records5.1 The iron s
9、hall be produced under constant control ofchemical composition and physical properties. Records of thechemical composition of the iron and of the physical propertiesof the test specimens shall be systematically made and main-tained.6. Tests6.1 Tests shall be made when required by the specificationsl
10、isted herein.7. Certification7.1 The manufacturer shall be prepared to certify, uponrequest of the purchaser, that his product conforms to therequirements of this specification.8. Product Marking8.1 The castings shall be marked with the manufacturersname or trademark.8.2 Malleable iron products conf
11、orming to the standards ofthe Manufacturers Standardization Society of the Valve andFittings Industry shall be marked in accordance with SP-25-1936 of that Society. Malleable iron products furnished in1This specification is under the jurisdiction of ASTM Committee A04 on IronCastings and is the dire
12、ct responsibility of Subcommittee A04.02 on Malleable andDuctile Iron Castings.Current edition approved May 1, 2004. Published May 2004. Originallyapproved in 1954. Last previous edition approved in 1998 as A 338 84 (1998).2Based on Marshall, L. C., and Sommer, G. F., “Stress Rupture Properties ofMa
13、lleable Iron at Elevated Temperatures,” Proceedings, ASTM International, Vol58, 1958, p. 733.3For 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 Document
14、Summary page onthe ASTM website.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.5Available from National Institute of Standards and Technology (NIST), 100Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.6Available from Manufacturers Standa
15、rdization Society of the Valve and FittingsIndustry (MSS), 127 Park St., NE, Vienna, VA 22180-4602.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.accordance with the standards issued by the American Stan-dards Association or by the
16、Association of American Railroadsshall be marked as specified in the respective standards.9. Keywords9.1 flanges; heavy duty service; malleable iron; marineservice; pipe fittings; railroad service; valve partsASTM International takes no position respecting the validity of any patent rights asserted
17、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 the
18、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 ca
19、reful 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 Committee on Standards, at the address shown below.This standard is copyrighted by ASTM Internatio
20、nal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).A 338 84 (2004)2
