ML071210252

Weld Filler and Welding Electrode Materials for Structural Weld Overlays within the Scope of Pilgrim Relief Request, PRR-15

ML071210252
Person / Time
Site:	Pilgrim
Issue date:	04/21/2007
From:	Bethay S Entergy Nuclear Operations
To:	Document Control Desk, NRC/NRR/ADRO
References
2.07.040, PRR-15, TAC MD2663
Download: ML071210252 (11)

Text

F.WeW Entergy Nuclear Operations, Inc.Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth, MA 02360 Stephen J. Bethay Director, Nuclear Assessment April 21, 2007 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Entergy Nuclear Operations, Inc.Pilgrim Nuclear Power Station Docket No. 50-293 License No. DPR-35 Weld Filler and Welding Electrode Materials for Structural Weld Overlays Within the Scope of Pilgrim Relief Request, PRR-15 1. NRC Approval of Pilgrim Relief Request No. PRR-15, Rev. 1, Approval to Include Remaining Reactor Pressure Vessel (RPV)Safe-End Welds in Contingency Repair Plan for Full Structural Weld Overlays (TAC. No. MD2663), dated April 2, 2007

REFERENCE:

2. EPRI Report No.1007921, Revision 1 of No.1006804, "Qualification of Welding Alloy 52M for Alloy 600/690 Repairs" LETTER NUMBER: 2.07.040

Dear Sir or Madam:

This letter provides information related to the weld filler and welding electrode materials, which will be used to perform reactor pressure vessel safe-end weld repairs within the scope of Pilgrim relief request referenced above (Reference 1).Entergy plans to use Inconel 52M/152M materials instead of Inconel 52/152 filler materials for weld repairs discussed in Reference

1. Inconel 52M/152M series are refined versions of Inconel 52/152 filler material.Attachment 1 provides the specifications of alloy 52M/1 52M materials.

The 52M/1 52M materials have been added into ASME Section II, Part C and ASME Section IX by the 2004 Edition/2006 Addenda. The use of these materials does not invalidate NRC evaluation presented in Reference 1.4oqifl Entergy Nuclear Operations, Inc Letter No. 2.07.040 Pilgrim Nuclear Power Station Page 2/2 Like Alloy 52/152, welds made using Alloy 52M/152M are fully austenitic nickel alloys whose alloy and weld deposits do not depend on the formation of delta ferrite for sound quality. This is due to the high nickel (Ni) composition (approximately 60% Ni and low iron (Fe) content).

An added advantage of Alloy 52M/152M is that, unlike Alloy 52/152, it is not susceptible to microfissuring and ductility dip cracking.

Alloy 52M has been formulated to address ductility dip cracking.

This is responsible for Alloy 52M/1 52M having less oxides and floaters present to affect Non Destructive Examination (NDE) personnel.

In addition, Alloy 52M/152M's high level of chromium (Cr) like alloy 52/152 provides significant resistance to IGSCC. EPRI has done extensive research (Reference

2) with Inconel 52M/1 52M. It is superior for weldabiltiy and NDE in comparison to Inconel 52/152 while still maintaining the significant resistance to IGSCC.The application of these weld materials provide an acceptable level of quality and safety.There are no commitments contained in this letter.If you have any questions or require additional information, please contact Mr. Bryan Ford, Licensing Manager, at (508) 830-8403.Sincerely, 4 Attachment 1: ASME Section IX, 2006 Addenda, July 1, 2006 (8 pages)cc: Mr. James Kim, Project Manager Office of Nuclear Reactor Regulation Mail Stop: 0-8B-1 U.S. Nuclear Regulatory Commission 1 White Flint North 11555 Rockville Pike Rockville, MD 20852 U.S. Nuclear Regulatory Commission Region 1 475 Allendale Road King of Prussia, PA 19406 Senior Resident Inspector Pilgrim Nuclear Power Station ATTACHMENT 1 (To Enterqy letter No. 2.07.040)ASME Section IX, 2006 Addenda, July 1, 2006 (8 pages)

ASME BOILER AND PRESSURE VESSEL CODE AN INTERNATIONAL CODE QUALIFICATION STANDARD FOR WELDING AND BRAZING PROCEDURES, WELDERS, BRAZERS, AND WELDING AND BRAZING OPERATORS THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS NEW YORK, NEW YORK B090W6 SPECIFICATION FOR NICKEL AND NICKEL-ALLOY BARE WELDING ELECTRODES AND RODS A06 S SFA-5.14 (Identical with AWS Specification A5.14/A5.14M:2005.)

1. Scope 1.1 This specification prescribes requirements for the classification of bare nickel and nickel-alloy welding elec-trodes, strip electrodes, and welding rods. It includes those compositions where the nickel content exceeds that of any other element.1.2 Safety and health issues and concerns are beyond the scope of this standard and, therefore, are not fully addressed herein. Some safety and health information can be found in the nonmandatory annex, Sections A5 and AI0. Safety and health information is available from other sources, including, but not limited to, ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes.

1.3 This specification makes use of both U.S. Custom-ary Units and the International System of Units (SI). The measurements are ot exact equivalents; therefore, each system mnust be used independently of the other without combining in any way when referring to material proper-ties. The specification with the designation A5.14 uses U.S. Customary Units. The specification A5.14M uses SI Units. The latter are shown within brackets [ ] or in appropriate columns in tables and figures. Standard dimensions based on either system may be used for sizing of filler metal or packaging or both under A5.14 or A5.14M specificaitons.

PART A -GENERAL REQUIREMENTS

2. Normative References 2.1 The following standards contain provisions which, through reference in this text, constitute provisions of this AWS standard.

For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreement based on this AWS standard are encouraged to investigate the pos-sibility of applying the most recent editions of the docu-ments shown below. For undated references, the latest edition of the standard referred to applies.2.2 The following AWS standardsi are referenced in the mandatory sections of this document: (a) ANSI/AWS Al.1, Metric Practice Guide for the Welding Industry (b) ANSI/AWS A5.01, Filler Metal Procurement Guidelines 2.3 The following ANSI standard 2 is referenced in the mandatory sections of this document: (a) ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes 2.4 The following ASTM standards 3 are referenced in the mandatory sections of this document: (a) ASTM E 29, Standard Practice for Using Signifi-cant Digits in Test Data to Determine Conformance with Specifications (b) ASTM E 76, Standard Methods for Chemical Analysis of Nickel-Copper Alloys (c) ASTM DS-56H/SAE HS-1086, Metals & Alloys in the Unified Numbering System (d) ASTM E 354, Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys AWS standards can be obtained from Global Engineering Docu-ments, an Information Handling Services (IHS) Group company, 15 inverness Way East, Englewood, CO 80112-5776.

2 This ANSI standard can be obtained from Global Engineering Docu-ments, an Information Handling Services (IHS) Group company, 15 Inverness Way East, Englewood, CO 80112-5776.

3 ASTM standards can be obtained from the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.

325 WELDING DATA QW-432 A06 F-NUMBERS (CONT'D)Grouping of Electrodes and Welding Rods for Qualification F-No. ASME Specification AWS Classification UNS No.Copper and Copper Alloys (CONT'D)36 SFA-5.7 ERCuAI-A2 C61800 36 SFA-5.7 ERCuAI-A3 C62400 37 SFA-5.6 ECuMnNiAI C60633 37 SFA-5.6 ECuNiAI C60632 37 SFA-5.7 ERCuMnNiAI C63380 37 SFA-5.7 ERCuNiAI C63280 Nickel and Nickel Alloys 41 SFA-5.11 ENi-1 W82141 41 SFA-5.14 ERNi-1 N02061 41 SFA-5.30 IN61 N02061 42 SFA-5.11 ENICu-7 W84190 42 SFA-5.14 ERNiCu-7 N04060 42 SFA-5.14 ERNiCu-8 N05504 42 SFA-5.30 IN60 N04060 43 SFA-5.11 ENICr-4 W86172 43 SFA-5.11 ENiCrCoMo-1 W86117 43 SFA-5.11 ENiCrFe-1 W86132 43 SFA-5.11 ENiCrFe-2 W86133 43 SFA-5.11 ENiCrFe-3 W86182 43 SFA-5.11 ENiCrFe-4 W86134 43 SFA-5.11 ENiCrFe-7 W86152 43 SFA-5.11 ENiCrFe-9 W86094 43 SFA-5.11 ENiCrFe-1O W86095 43 SFA-5.11 ENiCrFe-12 W86025 43 SFA-5.11 ENiCrMo-2 W86002 43 SFA-5.11 ENiCrMo-3 W86112 43 SFA-5.11 ENiCrMo-4 W80276 43 SFA-5.11 ENiCrMo-5 W80002 43 SFA-5.11 ENiCrMo-6 W86620 43 SFA-5.11 ENICrMo-7 W86455 43 SFA-5.11 ENiCrMo-10 W86022 43 SFA-5.11 ENiCrMo-12 W86032 43 SFA-5.11 ENiCrMo-13 W86059 43 SFA-5.11 ENiCrMo-14 W86026 43 SFA-5.11 ENiCrMo-17 W86200 43 SFA-5.11 ENiCrMo-18 W86650 43 SFA-5.11 ENiCrMo-19 W86058 43 SFA-5.11 ENiCrWMo-1 W86231 43 SFA-5.14 ERNiCr-3 N06082 43 SFA-5.14 ERNiCr-4 N06072 43 SFA-5.14 ERNiCr-6 N06076 43 SFA-5.14 ERNiCrCoMo-1 N06617 43 SFA-5.14 ERNiCrFe-5 N06062 43 SFA-5.14 ERNICrFe-6 N07092 43 SFA-5.14 ERNiCrFe-7 N06052 43 S FA-5.14 ERNiCrFe-7A N06054 43 SFA-5.14 ERNiCrFe-8 N07069 43 SFA-5.14 ERNiCrFe-11 N06601 43 SFA-5.14 ERNiCrFe-12 N06025 43 SFA-5.14 ERNiCrFeAI-1 N06693 43 SFA-5.14 ERNiCrMo-2 N06002 43 SFA-5.14 ERNiCrMo-3 N06625 43 SFA-5.14 ERNiCrMo-4 N10276 43 SFA-5.14 ERNiCrMo-7 N06455 131 TABLE 1 CHEMICAL COMPOSITION REQUIREMENTS FOR NICKEL AND NICKEL-ALLOY ELECTRODES

& RODS Weight percentaeb AWS UNS Classification m Numberc C Mn Fe P S Si Cu Nid p ER Ni-1 ERNiCU-7" E RNiCu-8'ERNiCr-3'k.

ER NiCr-4 4 ERNiCr-6'ERNiCrFe-5 k ERNiCrFe-6 k ERNiCrFe-7j ERNiCrFe-7Aj' P ERNiCrFe-8 k ER NiC rFe-11 N02061 0.15 1.0 1.0 0.03 .0.015 0.75 0.25 93.0 N04060 N05504 N06082 N06072 N06076 N06062 N07092 N06052 N06054 N07069 N06601 0.15 0.25 0.10 0.01 to 0.10 0.08 to 0.15 0.08 0.08 0.04 0.04 0.08 0.10 4.0 1.5 2.5 to 3.5 0.20 1.00 1.0 2.0 to 2.7 1.0 1.0 1.0 1.0 2.5 2.0 3.0 0.50 2.00 6.0 to 10.0 8.0 7.0 to 11.0 7.0 to 11.0 5.0 to 9.0 Rem 0.02 0.03 0.03 0.02 0.03 0.03 0.03 0.02 0.02 0.03 0.03 min 0.015 1.25 Rem 62.0 to 69.0 0.015 1.00 Rem 63.0 to 70.0 0.015 0.50 0.50 67.0 min 0.015 0.20 0.50 Rem 0.015 0.30 0.50 75.0 min.0.015 0.35 0.50 70.0 min 0.015 0.35 0.50 67.0 min 0.015 0.50 0.30 Rem 0.015 0.50 0.30 Rem 0.015 0.50 0.50 70.0 min.0.015 0.50 1.0 58.0 to Co Al Ti Cr-1.5 2.0 -to 3.5-1.25 1.5 -to 3.0-2.0 0.25 -to to 4.0 1.00 e -0.75 18.0 to 22.0--0.3 42.0 to to 1.0 46.0-0.40 0.15 19.0 to to 0.50 21.0 e --14.0 to 17.0--2.5 14.0 to to 3.5 17.0-1.10 1.0 28.0 to 31.5 0.12 1.10 1.0 28.0 to 31.5-0.4 2.00 14.0 to to to 1.0 2.75 17.0-1.0 21.0 3 Nb Cb) Other lus Elements, Ta Mo V W Total....- 0.50....- 0.50 "....0.50.0 ---0.50 to ,.Of--- --0.50-. ..0.50 1.5 ---0.50 to 3.01---0.50.10 0.50 --0.50 0.5 0.50 --0.50 tot 1.0.70 ---0.50 to.20---0.50 0 0 0 0i M*1 3 0 0 1 to 1.7 to 25.0 63.0 ERNiCrFe-12 N06025 0.15 0.50 8.0 0.020 0.010 0.5 0.1 Remn to to 0.25 11.0 1.0 1.8 0.10 24.0 to to to 2.4 0.20 26.0 0.50 CA 34 ASPECIAL METALS Welding Products Company Ni-Cr-Fe Filler Metal www.specialmetalswelding.com INCONEL' Filler Metal 52M INCONEL Filler Metal 52M is used for the gas-tungsten-arc and gas-metal-arc welding of INCONEL alloy 690, and the overlaying of carbon steels and stainless steels to provide a nickel-chromium alloy corrosion resistant surface. The high chromium level provides excellent resistance to stress corrosion cracking in the nuclear, pure water environment.

The product can also be used in applications requiring resistance to oxidizing acids. It is useful for dissimilar joints involving INCONEL and INCOLOY alloys.This product contains Boron and Zirconium to minimize the tendency for ductility-dip cracking, while it is especially resistant to oxide "floaters" and inclusions.

Specifications AWS A5.14 ERNiCrFe-7A (UNS N06054)Proposed to ASME II, Part C, SFA-5.14, ERNiCrFe-7A Proposed to ASME IX, F-No.43 Approvals Please confirm details of current scope of approvals with the Technical Department prior to order placement.

Lim iting N i ..........................

Remainder Ti ..................................

1.0 max.Chemical C ..............................

0.04 max. Co ............................

0.12 max.Composition Mn ...........

1. 0 max. Nb .............

0.50 to 1.0 (% ) Fe ............................

7.0 to 11.0 P ..............................

0.02 m ax.S ..............

0.015 max. Zr ..........

0.02 max.Si ............................

0.50 max. B ..........................

0.005 m ax.Cu ............................

0.30 max. Mo.........................

0.50 max.Cr .........

...... 28.0 to 31.5 Others .................

0.50 max.A l ..............................

1.10 m ax.Minimum Tensile Strength, psi 80,000 Mechanical MPa 552 Properties Elongation, (4d) % 30 Filler metals available, onrspool and in.cut_ straight lengths-in G variety of sizes. selected from the following diameters:

0.8 1 0.9 I 1.0 I 1.14 I 1.0.030 10.035 1,0.0:40 10.0,45 1 0.C Straight Lengths -915 mm (36 in.) or 1000 mm (39 in.).2 I 1.6 2.4 1 3.2)47 [ 0.062 1 0.093 0.125 ASPECIAL METALS Welding Products Company www.specialmetalswelding.com INCONEL Welding Electrode 152M (4)0 ho 41-0)4-1I'U z z INCONEL Welding Electrode 152M is used for the shielded-metal-arc welding of INCONEL alloy 690, and the overlaying of carbon steels and stainless steels to provide a nickel-chromium alloy corrosion resistant surface. The high chromium level provides excellent resistance to stress corrosion cracking in the nuclear, pure water environment.

The product can also be used in applications requiring resistance to oxidizing acids. It is useful for dissimilar joints involving INCONEL and INCOLOY alloys. This pro duct contains Boron and Zirconium to minimize the tendency for ductility-dip cracking.Specifications AWS A5.11 ENiCrFe-7 (UNS W86152)Other specifications to follow.Approvals Please confirm details of current scope of approvals with the Technical Department prior to order placement.

Limiting Ni ..............

Remainder Co ....... * ..........

0.12 max.Chemical C ..........

0.05 max. Nb ..........

2.5 to 1.0 Composition Mn ..............................

5.0 max. P ................................

0.03 max.Fe ............................

7 .0 to 12.0 Zr ..............................

0.02 m ax.S ..............................

0.015 max. B .............................

0.005 m ax.Si ..............................

0.75 max. M o ............................

0.50 max.Cu ............................

0.50 max. Others ....................

0.50 max.Cr ..........................

28.0 to 31.5 Minimum Tensile Strength, psi 80,000 Mechanical MPa 552 Properties Elongation, (4d) % 30 Diameter mm 2.4 3.2 4.0 4.8 in 3/32 1/8 5/32 3/16 Length mm 229 356 356 356 in 9 14 14 14 Current (DC+) A 45-70 75-110 95-140 125-165 lml-Cr-Fe F~I-er Metal A SPECIAL METALS Welding Products Company www.specialmetalsweldling.com INCONEL Filler Metal 52 INCONEL Filler Metal 52 is used for gas-tungsten-arc and gas-metal welding of INCONEL alloy 690. This NiCrFe welding product was developed to meet the changing needs of the nuclear industry, the higher chromium level providing greater resistance to stress-corrosion cracking in the nuclear, pure water environment.

INCONEL Filler Metal 52 produces corrosion-resistant overlays on most low-alloy and stainless steels. It can also be used in applications requiring resistance to oxidizing acids. It is useful for dissimilar joints involving INCONEL and INCOLOY alloys, and carbon, low-alloy and stainless steels and for overlaying on to steel.Specifications AWS A5.14 ERNiCrFe-7 (UNS N06052)ASME II, Part C, SFA-5.14, ERNiCrFe-7 (UNS N06052)ASME IX, F-No.43*(EN) ISO 18274 -SNi6052 (NiCr30Fe9)

'Supply to these specifications available upon request For manufacture to ASME III (NCA3800, NB2400), and other specifications please refer your inquiry to the Technical Department prior to order placement.

Approvals Please confirm details of current scope of approvals with the Technical Department prior to order placement.

Limiting Ni+Co ..................

Remainder Cr ..............................

28.0-31.5 Chemical C ..........

0.04 max. Ti .....................

1.0 max.Composition Mn ..............................

1.0 max. Al ..............................

1.10 max.Fe ..................................

7.0-11.0 P ..............................

0.02 m ax.S ............................

0.015 max. Nb+Ta ....................

0.10 max.Si ..........

0.50 max. Al+Ti .........

1.5 max.Mo ..........................

0.50 max. Others .................

0.50 max.Cu ............................

0.30 max.Minimum Tensile Strength, psi 80,000 Mechanical MPa 552 Properties Elongation, (4d) % 30 Filler metals a iab e orn spool. and- in- cut.

lenths ia e vafie+y of sizes-................

.....

from the-foll-owing diameters:

Straight Lengths -915 mmi (36 in.) or 1000 mmn (39 in.)l Ni-Cr-Fe Welding Electrode A SPECIAL METALS Welding Products Company www.specialmetalsweldling.com INCONEL' Welding Electrode 152 INCONEL Welding Electrode 152 is used for shielded-metal-arc welding of INCONEL alloy 690. It has a higher chromium content which improves resistance to stress-corrosion cracking in the nuclear, pure water environment.

It was designed to produce high quality welds in all positions.

This electrode also produces corrosion-resistant overlays on most low-alloy and stainless steels. Other uses include applications requiring INCONEL alloy 690'glass melters' used for the disposal of nuclear waste. It is also useful for dissimilar joints involving INCONEL and INCOLOY alloys, and stainless, low-alloy and carbon steels.The electrodes provide excellent operability for groove and fillet welding in the downhond position and the smaller diameter electrodes are also suitable for all position welding. Power supply: direct current, electrode positive.Specifications AWS A5.11 ENiCrFe-7 (UNS W86152)ASME II C SFA-5.11, ENiCrFe-7 (UNS W86152)ASME IX, F-No.43 (EN) ISO 14172 -ENi6152 (NiCr30Fe9Nb)

• Supply to these specifications available upon request For manufacture to ASME III (NCA3800, NB2400), and other specifications please refer your inquiry to the Technical Department prior to order placement.

Approvals Please confirm details of current scope of approvals with the Technical Department prior to order placement.

Limiting Ni+Co ..................

Remainder Cu ............................

0.50 max.Chemical C ..............................

0.05 max. Cr ..............................

28.0-31.5 Composition Mn ..............................

5.0 max. Ti ..............................

0.50 max.Fe ................................

7.0-12.0 Al ............................

0.50 m ax.S ....... .........

0.015 max. P ..........

0.03 max.Si .........................

0.75 max. N b+Ta ..........................

1.0-2.5 Mo ................

0.50 max. Others ....... 0.50 max.Minimum Tensile Strength', psi 80,000 Mechanical MPa 552 Properties Elongation, (4d) % 30 rpm 2.4 3.2 4.0 4.8 in 3/32 1/8 5/32 3/16m 229 356 356 356 in 9 f 14 14 14 Curen (c4 A 5-5 5-100 95-130 125-165