ASTM A338-84(2018) - 1.11.2018
 
1. Scope

1.1 This specification covers malleable iron flanges, pipe fittings, and valve parts, including parts to be assembled for use in railroad, marine, and other heavy-duty service applications where fittings furnished in accordance with American National Standard for Malleable Iron Threaded Fittings, Classes 150 and 300 (ANSI B16.3) are not considered adequate.

1.2 Service shall include up to 650 °F (345 °C).2

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

A153/A153M-23

Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

A47/A47M-99(2022)e1

Standard Specification for Ferritic Malleable Iron Castings (Includes all amendments and changes 10/7/2022).

B?16.3

Malleable Iron Threaded Fittings, Class 150 and 300

SP-25-1936

Standard Marking System for Valves, Fittings, Flanges, and Unions Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-hq.org.

Hand Book H28,

Section VI, Screw-Thread Standards for Federal Services, 1944 Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.

B?2.1

Pipe Threads