Inspectioneering Journal

99 Diseases of Pressure Equipment: Weld Heat Affected Zone Cracking

By John Reynolds, Principal Consultant at Intertek. This article appears in the January/February 2004 issue of Inspectioneering Journal.

Cracks along the toe of a weld are not uncommon during fabrication, and can occur for a wide variety of reasons involving the metallurgy and process control of the the same issues covered above on repair welds can apply to repair welds on castings; especially if you are unaware that the foundry or fabricator is trying to salvage a defective casting by covering up porosity and shrinkage cracking with a big glob of weld metal. Some companies are starting to add specific higher-quality foundries to their “approved supplier” lists, as well as starting to hold valve suppliers (in addition to manufacturers) responsible for the quality of the products they handle. The really interesting “gotcha” in this scenario is that those companies that insist on higher quality castings with their specs and QA/QC usually get them, while the rejected castings go back into the pool to be supplied to other companies that are not paying that much attention to casting quality.

Are you getting someone else’s rejected castings in your valves and pump cases?

Comments and Discussion

There are no comments yet.

Add a Comment

Please log in or register to participate in comments and discussions.

Inspectioneering Journal

Explore over 20 years of articles written by our team of subject matter experts.

Company Directory

Find relevant products, services, and technologies.

Training Solutions

Improve your skills in key mechanical integrity subjects.

Case Studies

Learn from the experience of others in the industry.


Inspectioneering's index of mechanical integrity topics – built by you.

Industry News

Stay up-to-date with the latest inspection and asset integrity management news.


Read short articles and insights authored by industry experts.

Expert Interviews

Inspectioneering's archive of interviews with industry subject matter experts.

Event Calendar

Find upcoming conferences, training sessions, online events, and more.


Downloadable eBooks, Asset Intelligence Reports, checklists, white papers, and more.

Videos & Webinars

Watch educational and informative videos directly related to your profession.


Commonly used asset integrity management and inspection acronyms.