ML20052E581

Testimony of Aw Zeuthen Re Shoreham Opponents Coalition Contention 19(c) on Ferrite of Welding Matls.Util Substantially Complies W/Reg Guide 1.31,Revision 3.Testing Program Ensures Adequate Ferrite Content in Matls

ML20052E581
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	05/04/1982
From:	Zeuthen A LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20052E543	List: ML20052E541 ML20052E551 ML20052E557 ML20052E566 ML20052E573 ML20052E577 ML20052E581 ML20052E587
References
ISSUANCES-OL, NUDOCS 8205110247
Download: ML20052E581 (10)

Text

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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Before the Atomic Safety and Licensing Board l In the Matter of )

)

L.ONG ISLAND LIGHTING COMPANY ) Docket No. 50-322 (OL)

)

(Shoreham Nuclear Power Station, )

Unit 1) )

TESTIMONY OF ALBERT W. ZEUTHEN FOR LONG ISLAND LIGHTING COMPANY ON SOC CONTENTION 19(c) -- FERRITE CONTENT OF WELDING MATERIALS PURPOSE i

This testimony establishes that LILCO substantively complies with Regulatory Guide 1.31, Revision 3. The testing program at Shoreham, including additional testing not required by the Regulatory cuide, ensures adequate ferrite content in materials.

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8205110247 820504 PDR ADOCK 05000322 T PDR

, o UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Before the Atomic Safety and Licensing Board In the Matter of )

)

LONG ISLAND LIGHTING COMPANY ) Docket No. 50-322 (OL)

)

(Shoreham Nuclear Power Station, )

Unit 1) )

TESTIMONY OF ALBERT W. ZEUTHEN FOR LONG ISLAND LIGHTING COMPANY ON SOC CONTENTION 19(c) -- FERRITE CONTENT OF WELDING MATERIALS

1. Q. What is your name and business address?

A. My name is Albert W. Zeuthen. My business address is Long Island Lighting Company, 175 East Old Country Road, Hicksville, New York, 11801.

2. Q. By whom and in what capacity are you employed?

A. I am employed by the Long Island Lighting Company.

I am Section Head of Materials Engineering.

3. Q. Would you please summarize your professional quali-fications?

A. In my present position, I provide technical support and consultation on materials, welding and cor-rosicn problems at Shoreham. This includes ques-tions involving the applicability of ASME Code and

2-regulatory guides to Shoreham. My resume appears on pages 8-9.

4. Q. Are you familiar with SOC Contention 19(c)?

A. Yes.

5. Q. What is the concern of the Contention?

A. To assure the adequacy of materials for welding, stainless steel weld metal must contain a certain amount of ferrite. Regulatory Guide 1.31 contains provisions for verifying the amount of ferrite in the materials. SOC Contention 19(c) argues that LILCO does not comply with Rev$sion 3 (the latest revision) of Regulatory Guide 1.31 with regard to

" stainless steel weld metal."

6. Q. What provisions do Regulatory Guide 1.31 establish for testing ferrite content of weld metal?

A. Regulatory Guide 1.31, Revision 3 provides for two alternative methods of delta ferrite control depen-ding upon the use of the materials being tested:

chemical composition analyses using constitutional diagrams or magnetic measurement. In addition to these two methods, Revision 1, as modified by the Interim Position MTEB 5-1, which Shereham committed to meet in the FSAR, requires testing of welds,

! some of which has been done at Shoreham.

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7. Q. What are constitutional diagrams?

A. By evaluating the nickel equivalent and the chro-mium equivalent in the weld filler material, the amount of ferrite can be determined. Consti-I tutional diagrams show the percentage of ferrite or ferrite number resulting from various mixes of these factors.

8. Q. How have the requirements for ferrite control been applied to Shereham?

A. The requirements regarding ferrite content have been incorporated in the purchase specifications for welding materials. Accordingly, the manufac-turers have been required to perform the tests and provide the test results. This is in accordance with Regulatory Guide 1.31.

9. Q. What tests have the manufacturers performed?

A. Manufacturers perform whichever test is appro-priate. The ultimate use of the material deter-mines which test is appropriate. As mentioned ear-lier, there are two tests to determine ferrite con-tent: magnetic measurements using calibrated in-struments, or chemical analyses using constitu-tional diagrams. In either case, ferrite content is based on undiluted weld metal pads.

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10. Q. What constitutional diagrams were used to determine ferrite content of Shoreham materials?

A. There are two diagrams used: the Schaeffler dia-gram and the Delong diagram.

11. Q. Are both diagrams widely accepted in the industry?

A. Yes.

12. Q. How do you know that the tests have been performed?

A. The manufacturers must certify the materials pro-vided. These certifications include the results of the required tests, whether measurement or anal-ysis, and must also certify that the ferrite con-tent of each heat and lot is within the specifica-tions.

13. Q. How are the Shoreham materials controlled to assure proper ferrite content?

A. The manufacturer's certifications are reviewed for compliance by the quality assurance personnel and welding materials are not released for field usage until approved. Welding materials are then re-leased to each welder. Extensive documentation exists to assure traceability of all materials used.

14. Q. So, in other words, LILCO itself does not perform

the ferrite verifications, but rather relies on the certifications of the manufacturers?

A. Yes, that is correct. Again, this process complies with the Regulatory Guide requirements.

15. Q. SOC contends that Shoreham does not comply with Regulatory Guide 1.31, Revision 3. Does it?

A. All significant requirements of Revision 3 are met.

Let me explain. Revision Guide 1.31, Revision 3 was based upon a cooperative study group of the American Society of Mechanical Engineers, the American National Standards Institute and the Nuclear Regulatory Commission which was formed to analyze data to determine how testing of production welds could be reduced without sacrifing ferrite control. They analyzed 1500 welds and determined that ferrite content could be ensured without per-forming measurements on production welds.

Accordingly, the testing requirements for produc-tion welds were deleted.

16. Q. In what ways does Shoreham not comply with Revision 3?

A. Revision 3 incorporated new provisions for the preparation of a weld pad that relate to its thick-ness, and adopted the ferrite numbering system

instead of the percent ferrite system used in the earlier version. In addition Revision 3 requires 6 readings of ferrite instead of 5 readings to be taken from the undiluted weld pads.

17. Q. Would these differences be significant with respect to the Shoreham materials?

A. No. I believe that the difference in weld pads or the additional reading are inconsequential. The change from percent ferrite to ferrite number is a matter more of standardization than substance. In addition, Shoreham has performed additional testing not required by Revision 3 to assure ferrite con-tent.

18. Q. What is that additional testing you refer to?

A. For coated electrodes, ferrite was determined from the chemical analysis of undiluted weld metal and a constitutional diagram. For consumable rings and rods for the gas tungsten arc weld process, ferrite was determined from weld pad measurements.

19. Q. And LILCO essentially complies with Regulatory Guide 1.31, Revision 3?

A. Yes.

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20. Q. Would you summarize your conclusions regarding SOC 1 Contention 19(c)?

A. Shoreham.substantially complies with Revision 3.

The testing program instituted at Shoreham, includ- l ing additional testing not require'd by the l Regulatory Guide Revision 3, ensures proper ferrite control of weld metal.

PROFESSIONAL QUALIFICATIONS Albert W. Zeuthen My name is Albert W. Zeuthen. My business address is 1

Long Island Lighting Company,.175 East Old Country Road, Hicksville, New York, 11801. I joined LILCO in 1975. I am currently Section Head of Materials Engineering. In this posi-tion, I provide technical support and consultation on mate-rials, welding, and corrosion problems at the Shoreham Nuclear Power Station, during the design, construction and operation phases. I deal with issues involving the application of var-ious codes and regulatory guides. I am involved with activi-ties concerning failure analysis for Electric Production, Gas Turbine Division, and Overhead Lines. I have represented LILCO at EPRI meetings and at NRC meetings if they concern Shoreham.

Previously, I was a Senior Engineer with Consolidated Edison responsible for metallurgic and welding services for Indian Point Units 1 and 2 and construction of Unit 3. I pre-pared all welding procedures for Units 1 and 2 as well as pro-cedures for other facilities. I was responible for welding repairs at Indian Point as well as high pressure turbine cas-ings at East River Waterside and Astoria.

Prior to working with Consolidated Edision I was a Senior Engineer with Mobil Corporation for 20 years and had world-wide experience in the design, construction and repairs of equipment used in refineries. My work at Mobil resulted in granting of two patents.

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"E I am a member of the ASME Boiler and Pressure Vessel Code Committee and serve as Chairman of the Subgroup on Steel i Plates and a member of Section II Materials. I am a member of j the American Society for Metals and the Metal Science Club of New York.

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