ML20128C549

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Forwards Region III Memo Re Discovery of Carbon Inclusions in Inconel Tubing from Which Reactor Vessel Stub Tubes Fabricated,For Info
ML20128C549
Person / Time
Site: Monticello Xcel Energy icon.png
Issue date: 07/24/1968
From: James O'Reilly
US ATOMIC ENERGY COMMISSION (AEC)
To: Boyd R
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20128C554 List:
References
NUDOCS 9212040466
Download: ML20128C549 (1)


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( [/ JUL 2e13Sr R. S. Boyd, Assistant Director for Reactor Projects Division of Reactor Licensing NO.TIFER'! STATES KfER COMPANY (MONTICELLO), DOCKET NO. So-263'sTU3 TUEE MATERIAL INCLUSIONS The attached memorandus frc= our Region III Office (Chicago), concerning the disco < cry of carbon inclusions in.the Inconel tubing from which the reactor vessel stub tubes are fabricated, is forwarded for infor:ation.

Ecsed on the investigatio$s conducted by the Chicago Bridce ati Iron Oc:pany (CI&I), ve believe that the inclusions bave not impaired the physical properties of the stub tube caterial. Ecvever, because cf the

- current problers being experienced with stub tubes and the limited in-formation available regarding the long-ter corrosica resists.ce of ,

'i Inconel, ve have take action by requesting our consultant, Paraceter, Incorporated, to review this natter. A visit has been scheduled on July 29, 1968, to CELI for this purpose. We vill infor you of significant deveh , tents.

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J. P. O'Reilly, Chief Reactor Inspection and Enforcement Branch Division of Cc=pliance

Enclosure:

IncuiryMemoranduc7/10/66 E. D. Thornburg to J. P. O'heilly cc: E.-G. Case, DRS l

S. Levine, LEL D. J. Skovholt, DRL (2)

L. Kolcblith, Jr., CO l

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I 9212040466 680724 PDR ADOCK 05000263 S .. pga

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