API RP 577-201X Draft. Welding Processes, Inspection, and Metallurgy

American Petroleum Institute (API). Draft Second Edition, Third Ballot-Closes 03/25/2011. 149p. This recommended practice provides guidance to the API authorized inspector on welding inspection as encountered with fabrication and repair of refinery and chemical plant equipment and piping. This recommended practice includes descriptions of common welding processes, welding procedures, welder qualifications, metallurgical effects from welding, and inspection techniques to aid the inspector in fulfilling their role implementing API 510, API 570, API Std. 653 and API RP 582.