Metallurgical Examination of HRT Leak Detector Tubing and Flanges

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Description

After several failures had occurred in the HRT leak detector system, several lengths of this tubing were removed for metallurgical examination. The tubing was of type 304 stainless steel and was 1/4" in diameter with a 0.065 wall. The tubing had been purchased as three different lots, the first in 45 ft. lengths and the other two as standards lengths. Tubing from the first lot was used primarily for the shield penetration and, therefore, sections of it are present in all lines of the system. It appears that chloride contamination entered the system in a portion of the first lot … continued below

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26 pages : illustrations

Creation Information

Adamson, G. M; Hammond, T. M.; Kegley, T. M. & White, J. K. January 31, 1957.

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Description

After several failures had occurred in the HRT leak detector system, several lengths of this tubing were removed for metallurgical examination. The tubing was of type 304 stainless steel and was 1/4" in diameter with a 0.065 wall. The tubing had been purchased as three different lots, the first in 45 ft. lengths and the other two as standards lengths. Tubing from the first lot was used primarily for the shield penetration and, therefore, sections of it are present in all lines of the system. It appears that chloride contamination entered the system in a portion of the first lot of tubing used for the shield penetration. The exact source of the chloride cannot be determined, but after considering the results and visiting the manufacturer's plant, it appears most likely the contamination was during the manufacturing process.

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26 pages : illustrations

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Digitized from microopaque cards (1).

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  • Report No.: CF-57-1-109
  • Grant Number: W-7405-eng-26
  • SuDoc Number: Y 3.At 7:22/CF-57-1-109
  • Accession or Local Control No: metadc1202834
  • Archival Resource Key: ark:/67531/metadc1202834

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Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

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  • January 31, 1957

Added to The UNT Digital Library

  • July 9, 2023, 5:28 p.m.

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  • April 4, 2024, 12:33 p.m.

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Adamson, G. M; Hammond, T. M.; Kegley, T. M. & White, J. K. Metallurgical Examination of HRT Leak Detector Tubing and Flanges, report, January 31, 1957; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1202834/: accessed March 12, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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