B?16.5

Dimensional Standards for Steel Pipe Flanges and Flanged Fittings

A?5.5

Low-Alloy Steel Covered Arc-Welding Electrodes Available from American Welding Society (AWS), 550 NW LeJeune Rd., Miami, FL 33126, http://www.aws.org.

A788/A788M-26a

Standard Specification for Steel Forgings, General Requirements (Includes all amendments and changes 8/6/2026).

A388/A388M-26

Standard Practice for Ultrasonic Examination of Steel Forgings

605

Large Diameter Carbon Steel Flanges Available from American Petroleum Institute (API), 1220 L. St., NW, Washington, DC 20005-4070, http://api-ec.api.org.

Section VIII

Division I, Part UG-84 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org.

Section IX

A961/A961M-25a

Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications (Includes all amendments and changes 9/24/2025).