ASTM A338-1984(2014) Standard Specification for Malleable Iron Flanges Pipe Fittings and Valve Parts for Railroad Marine and Other Heavy Duty Service at Temperatures Up to 650° .pdf
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1、Designation: A338 84 (Reapproved 2014)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 A338; the number immediately following the des
2、ignation 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 mal
3、leable 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 not c
4、onsidered 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 Documen
5、ts2.1 ASTM Standards:3A47/A47M Specification for Ferritic Malleable Iron Cast-ingsA153/A153M 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 Book H2
6、8, 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 A47/A47M.4. Materials and Manufacture4.1 The sizes, shapes, and dimensions of the fit
7、tings, 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 as issued by the Association of Ameri-can Railroads shall conform to the re
8、quirements 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.)4.4 Zinc coatings on fittings which are required to begalvanized by the hot
9、-dip process shall conform to the require-ments for Class A castings as prescribed in SpecificationA153/A153M, except on surfaces where it is the practice tomachine after galvanizing.5. Manufacture Control and Records5.1 The iron shall be produced under constant control ofchemical composition and ph
10、ysical 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 Co
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