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API RP 577 - Welding Processes, Inspection, and Metallurgy

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API RP 577, Welding Processes, Inspection, and Metallurgy, is a recommended practice developed and published by the American Petroleum Institute (API) that provides guidance to inspectors on welding inspection as encountered with fabrication and repair of refinery and chemical plant equipment and piping. API RP 577 was originally published in 2004, and the most recent 3rd Edition was released in October of 2020.

Common welding processes, welding procedures, welder qualifications, metallurgical effects from welding, and inspection techniques are described to aid the inspector in fulfilling their role implementing API 510, API 570, API Std 653 and API RP 582.

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Articles about API RP 577 - Welding Processes, Inspection, and Metallurgy
Blog

A summary of some of the important topics that were discussed at the API Fall 2020 Refining and Equipment Standards Meeting that was held via virtual conferencing.

Authors: John Reynolds
Blog

A summary of some of the important topics that were discussed at the API Spring Refining and Equipment Standards Meeting that was held via virtual conferencing.

Authors: John Reynolds
Blog

A summary of some of the important topics that were discussed at the API Fall Refining and Equipment Standards Meeting in Atlanta.

Authors: John Reynolds
Blog

A summary of some of the important topics that were discussed at the Spring Meeting, including the recently-held API Inspection and Mechanical Integrity Summit, subcommittee activities, and progress with the API Individual Certification Program.

Authors: John Reynolds
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Over the last six months, Inspectioneering has released a plethora of interesting and educational content that has been read more than 150,000 times online. In case you missed it, here's a recap.

Partner Content

FFS assessment techniques are applicable to a wide range of damage types: LTA's, cracks, creep damage, dents, and more. These are very powerful analytical tools that often allow operators to not only keep the plant running, but to keep it running...

January/February 2019 Inspectioneering Journal

Understanding how steel can change and be manipulated is crucial to our ability to spot potentially harmful situations in the field. Whether it is a blade made too brittle or a weld that needs post-weld heat treat, knowledge is power.

Blog

A quick summary of some of the important topics that were discussed at the Fall Meeting, including the upcoming API Inspection and Mechanical Integrity Summit, subcommittee activities, and progress with the API Individual Certification Program.

Authors: John Reynolds
Blog

The Fall API Standards Meeting was incredibly productive and addressed, among other issues, the API Inspection Summit, balloting for the 11th edition of API 510, and improvements to the inspection section of each damage mechanism in API RP 571.

Authors: John Reynolds
May/June 2016 Inspectioneering Journal

This brief article contains updates and highlights related to the Subcommittee on Inspection (SCI) at the 2016 API Spring Refining Equipment and Standards Meeting.

Authors: John Reynolds
Blog

Discussions to allow the certification of three existing API recommended practices (RPs) without prior certification to API 510, 570, or 653 were held at recent API Spring and Fall Refining and Equipment Standards Meetings.

Authors: Greg Alvarado
May/June 2003 Inspectioneering Journal

A new recommended practice from the API is in the final stages of preparation before publications. It is API RP 577 on Welding Inspection and Metallurgy.

Authors: John Reynolds
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      This white paper from Olympus discusses new solutions for long seam weld inspections, which have historically been challenging to inspect because of their thin wall thicknesses, the vertical weld bevel orientation, and the pipe curvature.

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