1、Designation: A 338 84 (Reapproved 2009)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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers m
3、alleable 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 B 16.3) are no
4、t considered adequate.1.2 Service shall include up to 650F (345C).21.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Docu
5、ments2.1 ASTM Standards:3A 47/A 47M Specification for Ferritic Malleable Iron Cast-ingsA 153/A 153M Specification for Zinc Coating (Hot-Dip) onIron and Steel Hardware2.2 American National Standards:4B 2.1 Pipe ThreadsB 16.3 Malleable Iron Threaded Fittings, Class 150 and 3002.3 Other Standards:Hand
6、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. Materials and Manufacture4.1 The sizes, shapes, and dimensions of the
7、fittings, cov-ered by ANSI B 16.3 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 as issued by the Association of Ameri-can Railroads shall conform to th
8、e requirements therein speci-fied.4.3 All pipe threads, unless otherwise specified, shall be inaccordance with ANSI B 2.1. (Standards for pipe threads arealso available in Section VI of Screw-Thread Standards forFederal Services.)4.4 Zinc coatings on fittings which are required to begalvanized by th
9、e hot-dip process shall conform to the require-ments for ClassAcastings as prescribed in SpecificationA 153,except on surfaces where it is the practice to machine aftergalvanizing.5. Manufacture Control and Records5.1 The iron shall be produced under constant control ofchemical composition and physi
10、cal 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 specificationslisted herein.1This specification is under the jurisdiction of ASTM Commi
11、ttee A04 on IronCastings and is the direct responsibility of Subcommittee A04.02 on Malleable andDuctile Iron Castings.Current edition approved May 1, 2009. Published August 2009. Originallyapproved in 1954. Last previous edition approved in 2004 as A 338 84 (2004).2Based on Marshall, L. C., and Som
12、mer, G. F., “Stress Rupture Properties ofMalleable 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 i
13、nformation, refer to the standards Document 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 208
14、99-3460.6Available from Manufacturers Standardization 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.7. Certification7.1 The manufacturer shall
15、 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 conforming to the standards ofthe Manufacturers Standardiza
16、tion Society of the Valve andFittings Industry shall be marked in accordance with SP-25-1936 of that Society. Malleable iron products furnished inaccordance with the standards issued by the American Stan-dards Association or by the Association of American Railroadsshall be marked as specified in the
17、 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 in connection with any item mentionedin this standard. Users of this
18、 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 responsible technical committee and must be reviewed every five year
19、s 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 committ
20、ee, 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 International, 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 (2009)2
