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United States Department of Transportation United States Department of Transportation

Metallurgical Evaluation / Analysis Reports

June 20, 2007

The purpose of this project was to determine chemical and metallurgical characteristics of the DOT-3-AA seamless steel cylinder with a pin hole leak on the sidewall, initial point of fracture, and possible cause of leak.

Key Words: cycling test, hydrostatic, chemical analysis, metallurgical evaluation, hydraulic fluid, hydrostatically tested, initial point of fracture

If you have any technical questions not addressed by this or associated documents, contact Mark Toughiry, 202-366-4545.

[NOTE: The attached documents are in PDF format, you can https://get.adobe.com/reader/download a free viewer.  If you have problems accessing the PDFs or the information, report your problem for further assistance.]

Last updated: Monday, November 27, 2017