Text

Letter from G. D. Van Middlesworth, NMC, to NRC Reactor Vessel Closure Head Penetration Repair and Flow Characterization Relief Requests
	ML050870325
Person / Time
Site:	Point Beach
Issue date:	05/13/2004
From:	Vanmiddlesworth G; Nuclear Management Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	FOIA/PA-2004-0282, MR 02-018-1, Rev 1, MR 02-018-2, Rev 1, NRC 2004-0051
	Download: ML050870325 (36)
	v • d • e

X May 13, 2004 NRC 2004-0051 10 CFR 50.55a(a)(3)(i) 10 CFR 50.55a(g)(5)(iii)

U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Point Beach Nuclear Plant, Units 1 and 2 Dockets 50-266 License Nos. DPR-24 Reactor Vessel Closure Head Penetration Repair and Flaw Characterization Relief Requests MR 02-018-1. Revision 1 and MR 02-018-2, Revision 1

Reference:

(1) Letter from NMC to NRC dated August 28, 2002 (NRC 2002-0073)

(2) Letter from NMC to NRC dated April 10, 2003 (NRC 2003-0034)

(3) Letter from NMC to NRC dated July 31,2003 (NRC 2003-0067)

(4) NRC Safety Evaluation dated September 10, 2003 (5) NRC Safety Evaluation dated September 24, 2003 In accordance with 10 CFR 50.55a(a)(3)(i) and 10 CFR 50.55a(g)(5)(iii), Nuclear Management Company (NMC) LLC, licensee for Point Beach Nuclear Plant (PBNP), is requesting revision to the relief, granted in references 4 and 5, pertaining to reactor vessel closure head (RVCH) penetration repair and flaw characterization.

In reference 1, NMC submitted Relief Requests MR 02-018-1 and MR 02-018-2 for PBNP Unit 1 (TAC Nos. MB6184 and MB6185). Relief Request MR 02-018-1 pertained to use of an alternative repair technique. Relief Request MR 02-018-2 pertained to relief from the requirement to characterize flaws that may exist in the remnants of the control rod drive mechanism (CRDM) nozzle J-groove welds after the repair.

References 2 and 3 provided additional information in support of the relief requests and expanded their applicability to PBNP Unit 2. Enclosed with references 2 and 3 were copies of supporting calculation packages prepared by Framatome ANP, LLC

("FRA-ANP").

In references 4 and 5, NRC granted the requested relief (TAC Nos. MB6184, MB6185, MB8436 and MB8438). The NRC letters stated that relief was not granted for situations where the portions of the new pressure boundary weld overlap onto portions of the remnant J-groove weld.

This submittal provides technical justification for the repair and flaw characterization where portions of the new pressure boundary weld overlap onto portions of the remnant J 41.

Document Control Desk Page 2 J-groove weld. The enclosures to this letter provide the requests for revised relief containing the technical justification and supporting calculations. The submitted information forms the basis for the request to revise the relief granted in references 4 and 5, such that it extends to situations where the portions of the pressure boundary weld overlap onto portions of the remnant J-groove weld.

NMC requests NRC review and approval of these relief requests by May 18, 2004.

Approval is required in support of returning the RVCH to service and the subsequent Unit 1 reactor startup. If necessary, NMC personnel will be available to meet with your staff to discuss any concerns you may have.

This submittal contains no new or revised regulatory commitments.

IRA/

Gary D.Van Middlesworth Site Vice-President, Point Beach Nuclear Plant Nuclear Management Company, LLC

Enclosures:

I - Request for Revised Relief, MR 02-018-1 11 - Request for Revised Relief, MR 02-018-2 IlIl - Structural Integrity Associates (SIA) Calculation PBCH-09Q-302 cc: Project Manager, Point Beach Nuclear Plant, NRR, USNRC Regional Administrator, Region l1l, USNRC NRC Resident Inspector - Point Beach Nuclear Plant PSCW

ENCLOSURE I REQUEST FOR REVISED RELIEF MR 02-018-1 POINT BEACH NUCLEAR PLANT, UNIT I Relief Request No. MR 02-018-1, Revision 1,Alternate Repair Technique - Reactor Vessel Closure Head Penetrations Pursuant to 10 CFR 50.55a(a)(3)(i), Nuclear Management Company (NMC) requests revision to the relief, granted in NRC Safety Evaluation dated September 24, 2003 (reference 5), pertaining to reactor vessel closure head (RVCH) penetration alternative repair techniques. The revision is specifically to extend the relief granted in reference 5, such that it applies to situations where the portions of the pressure boundary weld overlap onto portions of the remnant J-groove weld.

IDENTIFICATION Point Beach Unit 1 RVCH Penetrations, Class A (Class 1)

CODE REQUIREMENT As stated in the original relief request dated August 28, 2002 (reference 1):

Point Beach Unit 1 is currently in the fourth inspection interval using the 1998 Edition of ASME Section Xl with all addenda through 2000. ASME Section XI, paragraph IWA-4221, stipulates the following:

(a) "An item to be used for repair/replacement activities shall meet the applicable Owner's Requirements..."

(b)"An item to be used for repair/replacement activities shall meet the Construction Code specified..."

(c) "As an alternative to (b) above, the item may meet all or portions of the requirements of different Editions and Addenda of the Construction Code ... All or portions of later different Construction Codes may be used..."

The Construction Code for the Point Beach Unit 1 RVCH is ASME Section 111, 1965 Edition. The Design Specification for Point Beach Unit 1 RVCH is Westinghouse equipment specification G-676243.

For the proposed repairs to the RVCH penetrations, paragraph N-528.2 of the 1965 Edition of Section III requires repairs be post weld heat treated (PWHT) in accordance with paragraph N-532. The PWHT requirements set forth therein are not possible or practical to attain on a RVCH in containment without distortion of the head.

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The proposed repairs will be conducted in accordance with the 1998 Edition of ASME Section XI, 2000 Addenda (as applicable), the 1989 Edition of Section II, no Addenda, and alternative requirements discussed below.

REVISED RELIEF REQUESTED NMC requests revised relief to use an ambient temperature temper bead method of repair, for situations where the portions of the pressure boundary weld overlap onto portions of the remnant J-groove weld, as an alternative to the requirements of the 1989 Edition of ASME Section 1II,NB-4453, NB-4622, NB-5245, and NB-5330. The requirements of paragraph QW-256 of ASME Section IX,and IWA-4000 of the 1998 Edition, 2000 Addenda of Section Xl, are also applicable to the proposed repairs.

Approval is requested to use filler material Alloy 52 AWS Class ERNiCrFe-7/UNS No.

06052, which is endorsed by Code Case 2142-1, for the weld repair.

Portions of Code Case N-638, as described herein, have also been used as a template for this application. As an alternative to the above requirements, the requirements of Code Case N-638, "Dissimilar Metal Welding Using Ambient Temperature Machine GTAW Temper Bead Technique," will be used. Therefore, relief is also requested to implement Code Case N-638 for use with SA-302 Grade B material as an alternative to the requirements of ASME Section Xl. Code Case N-638 specifies applicability for all P-No. 3 base materials except SA-302 Grade B.

BASIS FOR REVISED RELIEF The basis stated in references 1,2 and 3 remains applicable to this request.

Additionally, repairs on the uphill side of penetrations in the outer ring of the RVCH, such as penetration #26, cannot physically be performed without overlapping the new pressure boundary weld onto portions of the remnant J-groove weld due to the high curvature of the RVCH in this area. Westinghouse 2-loop plants, such as PBNP, have a higher head curvature than most plants due to the reactor vessel diameter being smaller (132 inches).

During the Unit 1 spring 2004 refueling outage, a large ultrasonic (UT) signal was detected at the weld root downhill location (1800) of penetration #26. This signal was attributed to a fabrication weld repair performed during construction of the vessel head.

Several confirmatory liquid penetrant tests (PT) revealed J-groove surface indications at the 90° and 2700 locations of nozzle 26. A decision was conservatively made to repair this nozzle due to the high radiation doses involved with flaw excavation. Owing to the small diameter RVCH, the Alloy 52 repair weld will come into contact with the existing Alloy 182 J-groove weld.

Separation via grinding was considered, but determined to not be appropriate due to the high radiation doses to personnel that would be incurred during such an activity.

Page 2 of 5

I ALTERNATIVE DOCUMENTATION AND REQUIREMENTS The alternatives stated in references 1, 2 and 3 remains applicable to this request.

NMC will implement Code Case N-638, for the repair of the Point Beach Unit 1 Reactor Vessel Closure Head for use with SA-302 Grade B material, as an alternative to the requirements of ASME Section XI.

JUSTIFICATION OF REVISED RELIEF The justification stated in references 1, 2 and 3 remains applicable to this request.

An evaluation of the repair to be performed on Unit 1 RVCH penetration #26 included measurement of the Alloy 52 to Alloy 82/182 overlap and weld ligament dimensions.

The weld ligament will be 0.5 inch. The weld ligament is defined as the worst-case (smallest) portion of the new Alloy 52 pressure boundary weld that is not overlapping with the original J-groove weld (Alloy 82/182). Refer to figure 1 below.

H- _weld ligament I Figure 1 l This measurement was performed to support analysis of a worst-case flaw in the Alloy 82/182 material growing through the Alloy 52 Heat Affected Zone (HAZ) of the new pressure boundary weld. Crack growth rates in Alloy 52 material are very low. The analysis therefore conservatively assumed very high Alloy 600 crack growth rates as documented in EPRI MRP-55, "Materials Relability Program (MRP) Crack Growth Rates for Evaluating Primary Water Stress Corrosion Cracking (PWSCC) of Thick-Wall Alloy 600 Material.

Page 3 of 5

Bounding analyses demonstrated that a worst-case flaw in the Alloy 82/182 weld would take in excess of 1.5 effective full power years (EFPY) to go through the remaining Alloy 52 weld (weld ligament) of 0.26 inches. Since the actual weld ligament is 0.5 inch, revised calculations (Enclosure II) demonstrate that the worst-case flaw would require over two years to pass through the Alloy 52 HAZ ligament.

These analytical methods were discussed with NRC staff during public meetings on October 6,2003 and February 19, 2004.

References 1,2 and 3 did not explicitly address the relationship of Code Case N-638 when applied to SA-302 Grade B base material. Therefore, the following information regarding the RVCH construction material is provided.

The Point Beach RVCH plate is constructed of SA-302 Grade B, P-No. 3, base material, which was provided by Lukens Steel (Heat No. B-4762 Slab 2) as firebox (pressure vessel) quality, electric furnace melted, silicon killed fine grain melting practice and vacuum degassed. The plate was 165-1/2" x 165-1/2" x5-3/4" T after rolling at the mill.

The plate was subsequently quenched and tempered by B&W after forming the closure head dome. This material was manufactured similar to SA-533 Grade A which is covered by Code Case N-638.

As discussed above, SA-302 Grade B material is excluded from Code Case N-638. A single member on the ASME Main Committee objected to the inclusion of SA-302 Grade B base material applicability due to concerns relevant to HAZ toughness levels as a result of welding without use of a full post weld heat treatment (stress relief). The exclusion of SA-302 Grade B material was therefore incorporated to obtain unanimous approval for Code Case N-638.

UT of the production weld and its HAZ, to the extent practical, is planned to be performed after 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months at ambient temperature to verify weld quality and no hydrogen cracking has occurred in the HAZ.

PT of the production weld and the exposed portion of its HAZ is planned to be performed after 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months at ambient temperature to verify weld quality and no hydrogen cracking has occurred in the exposed portion of the HAZ.

There are no exclusions of the use of any of the approved temper bead processes using preheat on SA-302 Grade B material. Based on the above there is no technical basis for exclusion of welding on this material using qualified ambient temperature temper bead machine GTAW processes.

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IMPLEMENTATION SCHEDULE The revised relief requested is intended to cover repair activities as a result of RVCH inspection activities occurring during the Unit 1spring refueling outage that began in April 2004.

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ENCLOSURE II REQUEST FOR REVISED RELIEF MR 02-018-2 POINT BEACH NUCLEAR PLANT, UNIT I Relief Request No. MR 02-018-2, Revision 1, Characterization of Remaining Flaws - Reactor Vessel Closure Head Penetrations Pursuant to 10 CFR 50.55a(g)(5)(iii), NMC requests revision to the relief, granted in NRC Safety Evaluation dated September 10, 2003 (reference 4), pertaining to ASME Xl IWA-3300(b), IWB-3142.4 and IWB-3420, which would require characterization of a flaw existing in the remnant of the J-groove weld that will be left on the Point Beach Unit 1 Reactor Vessel Closure Head (RVCH) if a Control Rod Drive (CRDM) nozzle must be partially removed. The revision is specifically to extend the relief granted in reference 4, such that it applies to situations where the portions of the pressure boundary weld overlap onto portions of the remnant J-groove weld.

IDENTIFICATION Point Beach Unit 1 RVCH Penetrations, Class A (Class 1)

CODE REQUIREMENT As stated in the original relief request dated August 28, 2002 (reference 1):

Point Beach Unit 1 is currently in the fourth inspection interval using the 1998 Edition of ASME Section Xl with all addenda through 2000. IWB-2500, Examination Category B-P, "All Pressure Retaining Components," Item B15.10, is applicable to the inservice examination of the RVCH to penetration welds. IWA-3300, IWB-3142.4, IWB-3420, are applicable to any flaws discovered during inservice inspection. Specifically:

1. Subarticle IWA-3300(b) contains a requirement for flaws characterization.

2. Sub-subparagraph IWB-3142.4 allows for analytical evaluation to demonstrate that a component is acceptable for continued service. It also requires that components found acceptable for continued service by analytical evaluation be subsequently examined in accordance with IWB-2420(b) and (c).

3. Paragraph IWB-3420 requires the characterization of flaws in accordance with the rules of IWA-3300.

The Construction Code for the Point Beach Unit 1 RVCH is ASME Section III, 1965 Edition.

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REVISED RELEF REQUESTED NMC requests revised relief, for situations where the portions of the pressure boundary weld overlap onto portions of the remnant J-groove weld, from ASME XI IWA-3300(b),

IWB-3142.4 and IWB-3420, which would require characterization of a flaw existing in the remnant of the J-groove weld that will be left on the Point Beach Unit 1 RVCH if a CRDM nozzle must be partially removed.

BASIS FOR REVISED RELIEF The basis stated in references 1, 2 and 3 remains applicable to this request.

Repairs performed on the uphill side of penetrations in the outer ring of the RVCH, such as penetration #26, would require overlapping the new pressure boundary weld onto portions of the remnant J-groove weld due to the high curvature of the RVCH in this area.

ALTERNATIVE DOCUMENTATION AND REQUIREMENTS As stated in references 1, 2 and 3.

JUSTIFICATION OF REVISED RELIEF The justification stated in references 1, 2 and 3 remains applicable to this request.

The additional justification provided in Relief Request MR 02-018-1, above, applies to this request.

IMPLEMENTATION SCHEDULE The revised relief requested is intended to cover repair activities as a result of RVCH inspection activities occurring during the Unit 1 spring refueling outage that began in April 2004.

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ENCLOSURE III STRUCTURAL INTEGRITY ASSOCIATES (SIA) CALCULATION PBCH-09Q-302 PWSCC CRACK GROWTH CORRELATIONS AND FATIGUE CRACK GROWTH CALCULATIONS FOR POINT BEACH UNIT I REGARDING REQUEST FOR REVISED RELIEF MR 02-018-1 AND MR 02-018-2 POINT BEACH NUCLEAR PLANT, UNIT I

FILE No.: PBCH-09Q-302

STRUCTURAL CALCULATION INTEGRITY PACKAGE PROJECT No.: PBCH-09Q Associates, Inc.

PROJECT NAME: Point Beach Unit 1 CRDM Top Head Analysis CLIENT: NMC Point Beach Nuclear Plant CALCULATION TITLE: PWSCC Crack Growth Correlations and Fatigue Crack Growth Calculations for Point Beach Unit I Project Mgr. Preparer(s) &

Document Affected Revision Description Approval Checker(s)

Revision Pages Signature & Signatures &

Date Date 0 1-6 Original Issue H. L. GUSTIN H. L. GUSTIN Al -A192/17/04 2/17/04 G. L. STEVENS

._ 2/17/04 1 1-7 Incorporates actual overlap H. L. GUSTIN H. L. GUSTIN measurements for nozzle 26.

Al-A19 Appendix A is not affected. M) t jv A 5/12/04 5/12/04 MING QIN 5/12/04 Page 1 of7 F2001R1

Table of Contents 1.0 STATEMENT OF PROBLEM ......................................................... 3 2.0 METHODOLOGY ......................................................... 3 3.0 CRACK GROWTH CALCULATIONS .......................................................... 4 4.0 RESULTS ......................................................... 6

5.0 REFERENCES

.......................................................... 6 APPENDIX A FLAW GROWTH CALCULATIONS: PC-CRACK OUTPUT . .................................

Al Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 V Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page 2 of 7

1.0 STATEMENT OF PROBLEM In order to evaluate repair options for the Point Beach Unit 1 Top Head CRDM penetrations, it is necessary to evaluate growth of hypothetical flaws in the proposed weld repair fusion line with the low alloy steel base material. The industry Materials Reliability Program (MRP) has prepared a document that predicts PWSCC growth in components such as the CRDM penetration tubes [1].

This approach has been presented to the NRC, and has generally been accepted. The MRP correlation of available crack growth data is normalized in [1] to a service temperature of 617 'F.

The reported top head temperature for Point Beach Unit 1 is 592 'F [2]. The crack growth rate is a strong function of temperature, and so to reasonably represent the Point Beach condition, it is necessary to adjust the MRP crack growth correlation for the lower temperature.

In the following, a temperature-adjusted crack growth correlation is developed. This correlation is then used to predict the crack growth of bounding assumed flaws as a function of time.

One repair will actually be applied during the Spring 2004 outage. This repair is to Nozzle 26.

Crack growth results for this specific nozzle are also presented.

2.0 METHODOLOGY MRP-55 [1, page 13] presents a general form of the PWSCC crack growth correlation, based on the data collected:

da/dt = exp[-Qg/R (l/T -/Trcf)] a(K-Kth)o where:

da/dt = crack growth rate at temperature T in in/yr Q9 = thermal activation for crack growth

= 31.0 kcal/mole R = universal gas constant

= 1.103 x 10 3 kcal/mole 'R T = absolute operating temperature at location of crack. 'R T,,f = absolute reference temperature used to normalize data

= 598.15 K (1076.67 'R) a = crack growth amplitude

= 3.69 x 10-3 at 617 'F for da/dt in units of in/yr and K in.units of ksi-4in K = crack tip stress intensity factor Kth = crack tip stress intensity factor threshold

= 8.19 ksi-4in Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page 3 of 7

D = exponent - 1.16 To adjust this correlation for Point Beach I operating conditions, the operating temperature of 5920 F (1051.67 'R) [2] is used for the operating temperature T, above. This gives a plant specific PWSCC growth correlation of:

da/dt = 1.98 x 103 (K-Kth)1 '16 in/yr 16

= 2.26 x 10 7 (K-Kth) in/hour The above rates assume that the plant is operating 100% of the time (8760 hour0.101 days 2.433 hours 0.0145 weeks 0.00333 months s/year).

This correlation is applicable to evaluating the growth of ID connected axial flaws in the CRDM penetration tube material.

3.0 CRACK GROWTH CALCULATIONS The objective of the calculation is to determine the time that would be required for a crack at the interface of the Alloy 52 repair material, the low alloy steel head material, and the underlying J-groove material to propagate parallel to the repair weld by a PWSCC mechanism through a distance defined by the repair weld ligament. If the time for such propagation is greater than the remaining service life of the head, no penetration of the pressure boundary due to such a crack would be predicted.

The above crack growth correlation was used with the SI program pc-CRACK [3] to perform PWSCC crack growth calculations. Two hypothetical flaw types were considered, which represent the bounds on geometries that may be encountered. These were:

1. A flaw in the axial-radial plane, across the entire remaining J-groove + butter. Such a flaw would be opened by hoop stresses, resulting in a tunnel crack under the repair weld.

2. A flaw in the axial-circumferential plane, parallel to tube wall, which would be opened by radial stresses (which are comparatively small). The resulting crack would be "laminar", or parallel to the tube OD.

PWSCC is driven by both applied and weld residual stresses. Based on analyses performed by Dominion Engineering [2], as summarized in another SI calculation [4], the normal operating stresses plus the weld residual stresses in the hoop direction can reasonably be represented by a

constant through wall stress intensity factor of 57 ksi - 4inch, at the junction of the Alloy 52 repair weld and the low alloy steel head material.

The analysis assumed that the entire remaining J-groove weld material was degraded (cracked), so no credit was taken for any flaw initiation or growth time in the remaining J-groove material.

Because a constant applied K is assumed, starting flaw size has no effect on crack growth. For the purpose of this analysis, an arbitrary starting flaw depth of 0.01 inch is used, and a final depth of 0.278 inch represents growth through the assumed minimum remaining ligament (0.268 inch) for this repair. This minimum ligament corresponds to the maximum weld overlap on the worst case nozzle configuration.

The flaw located in the axial-radial plane (opened by hoop stresses) was determined to be the governing flaw case, since the applied plus residual stresses in the hoop direction are greater than those in the radial direction by a factor of two to four at the location of the postulated crack, based upon review of Dominion results [2] for nodes in this location. As a result, crack growth in this plane would be slower by a comparable factor.

Nozzle 26 is actually being repaired during the Spring 2004 outage. The repair for this nozzle has a minimum remaining ligament of 0.5 inch [5], versus the bounding value of 0.268 inch discussed above. The repair may also contain a weld root defect of 0.1 inch based on Framatome analyses.

Both cases (with and without root defect) are considered here, with pc-CRACK results contained in Appendix A. Both cases also assume the arbitrary starting J-groove flaw of 0.01 inch, as discussed above.

3.1 Fatigue crack growth Fatigue crack growth is driven by cyclic stresses. For the present case, the stress state for the assumed flaws is dominated by weld residual stresses (conservatively estimated as a constant 60 ksi) which are steady state secondary stresses. These residual stresses will not vary with heat-up/cooldown and other plant cycles, and will therefore have only a limited effect on fatigue crack growth (that is, they will have some effect on R-ratio, but none on cyclic delta K values due to cyclic plant operation. For the limited period of remaining plant operation with the current vessel head (estimated at less than 100 heat-up/cooldown cycles, producing a cyclic stress of 20 ksi),

propagation of the hypothetical cracks considered herein by a fatigue mechanism is estimated at approximately 0.0002 inch, and is therefore considered negligible compared to PWSCC propagation.

An initial flaw size of 0.1 inch was assumed for this case. The pc-CRACK fatigue crack growth results are attached as Appendix A.

V Revision Preparer/Date Checker/Date 0

HLG 2/17/04 GLS 2/17/04 1

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4.0 RESULTS The above bounding analysis produces the following results. These assume that an initial flaw of an arbitrary 0.01 inch deep is present in the J-groove weld, for calculational convenience. The growth is then calculated for the indicated remaining ligament lengths.

1. An axial-radial crack tunnel would propagate through the worst case (maximum overlap) remaining ligament (0.268 inch) in about 1.5 EFPY (13,000 EFPH).

2. An axial-radial crack tunnel would propagate through the best estimate (nominal overlap) remaining ligament (0.62 inch) in about 3.44 EFPY (30100 EFPH).

3. An axial-radial crack tunnel would propagate through the best case (minimum overlap) remaining ligament (0.782 inch) in 4.33 EFPY (38000 EFPH).

4. A laminar (axial-circumferential plane) crack would propagate through the worst case remaining ligament in more than twice the time, since the corresponding stresses are about a factor of 2 lower.

For the nozzle 26 repair (remaining ligament = 0.5 inch without root defect, or 0.4 inch with root defect), the time required for the type 1 flaw to propagate through the remaining ligament is 2.77 EFPY (24300 EFPH) for the no root defect case, and 2.23 EFPY (19500 EFPH) for the root defect case.

A crack would have to propagate through the remaining ligament before leakage and possible wastage could occur. It is anticipated that using the as-found weld measurements will demonstrate that no leakage will occur.

5.0 REFERENCES

1. Materials Reliability Program (MRP), "Crack Growth Rates for Evaluating Primary Water Stress Corrosion Cracking (PWSCC) of Thick-Wall Alloy 600 Material", MRP-55. EPRI Proprietary.

2. Dominion Engineering, "Point Beach Unit 1 CRDM Nozzle Repair Weld Analysis" Calculation C-4430-00-2, Revision 1, SI File PBCH-09Q-204.

3. Structural Integrity Associates, pc-CRACK' m for Windows, version 3.1-98348.

Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 ChekerDt GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page 6 of 7

4. SI Calculation, "Fracture Mechanics Evaluation of Point Beach Unit 1 Top Head CRDM 43.5 Degree Azimuth Penetration Weld Repair," PBCH-09Q-30 1,Revision 0.

5. E-mail from Brian Kemp (NMC) to Hal Gustin (SI) 5/12/04 Revision 0 1 1 V Preparer/Date Checker/Date File No.

HLG 2/17/04 GLS 2/17/04 PBCH-09Q-302 HLG 5/12/04 MQ 5/12/04 Page 7 of 7

APPENDIX A FLAW GROWTH CALCULATIONS: PC-CRACK OUTPUT Revision 0 1 V Preparer/Date Checker/Date File No.

HLG 2/17/04 GLS 2/17/04 PBCH-09Q-302 HLG 5/12/04 MQ 5/12/04 Page Al of A19

tm pc-CRACK for Windows Version 3.1-98348 (C) Copyright '84 - '98 Structural Integrity Associates, Inc.

3315 Almaden Expressway, Suite 24 San Jose, CA 95118-1557 Linear Elastic Fracture Mechanics Date: Mon Feb 09 14:31:53 2004 Input Data and Results File: PWSCFINE.LFM

Title:

PBCH-09Q: PWSCC Calculation Load Cases:

Case ID: PWSCC -- K vs a Depth K 0.0000 57.0000 0.5000 57.0000 2.0000 57.0000 Stress Coefficients Case ID CO Cl C2 C3 Type PWSCC 0 0 0 0 Kvsa Crack Model: User Input K Versus Crack Size Crack Parameters:

Max. crack size: 1.0000

- ---------Stress Intensity Factor------------

Crack Case Size PWSCC 0.0200 57 0.0400 57 0.0600 57 Revision 0 1 V Preparer/Date Checker/Date File No.

HLG 2/17/04 GLS 2/17/04 PBCH-09Q-302 HLG 5/12/04 MQ 5/12/04 Page A2 of A19

0.0800 57 0.1000 57 0.1200 57 0.1400 57 0.1600 57 0.1800 57 0.2000 57 0.2200 57 0.2400 57 0.2600 57 0.2800 57 0.3000 57 0.3200 57 0.3400 57 0.3600 57 0.3800 57 0.4000 57 0.4200 57 0.4400 57 0.4600 57 0.4800 57 0.5000 57 0.5200 57 0.5400 57 0.5600 57 0.5800 57 0.6000 57 0.6200 57 0.6400 57 0.6600 57 0.6800 57 0.7000 57 0.7200 57 0.7400 57 0.7600 57 0.7800 57 0.8000 57 0.8200 57 0.8400 57 0.8600 57 0.8800 57 0.9000 57 0.9200 57 0.9400 57 0.9600 57 0.9800 57 1.0000 57 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A3 of A19

Crack Growth Laws:

Law ID: PWSCC Type: Fatigue Model: Paris da/dN = c * (dK)An where dK = Kmax - Kmin dK > Kthres Kmax<Klc Material parameters:

c= 2.2600e-007 n= 1.1600 Kthres = 8.1900 Material Fracture Toughness KIc:

Material ID: Alloy 52 Depth KMc 0.0000 200.0000 0.5000 200.0000 2.0000 200.0000 Initial crack size= 0.0100 Max. crack size= 1.0000 Number of blocks= I Print increment of block= I Cycles CaIc. Print Crk. Grw. Mat.

Subblock /Time incre. incre. Law Klc PWSCC 40000 100 100 PWSCC Alloy 52 Kmax Kmin Subblock Case ID Scale Factor Case ID Scale Factor PWSCC PWSCC 1.0000 PWSCC 0.1400 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 V Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A4 of A19

Crack growth results:

Total Subblock Cycles Cycles DaDn

/Time /Time Kmax Kmin DeltaK R /DaDt Da a a/thk Block: I 100 100 4.03e+001 5.64e+000 3.47e+001 0.14 1.38e-005 1.38e-003 0.01138 0.00 200 200 4.30e+001 6.02e+000 3.70e+001 0.14 1.49e-005 1.49e-003 0.01287 0.00 300 300 4.57e+001 6.40e+000 3.93e+001 0.14 1.60e-005 1.60e-003 0.01447 0.00 400 400 4.85e+001 6.79e+000 4.17e+001 0.14 1.71e-005 1.71e-003 0.01618 0.00 500 500 5.13e+001 7.18e+000 4.41e+001 0.14 1.83e-005 1.83e-003 0.01801 0.00 600 600 5.41e+001 7.57e+000 4.65e+001 0.14 1.94e-005 1.94e-003 0.01995 0.00 700 700 5.69e+001 7.97e+000 4.90e+001 0.14 2.06e-005 2.06e-003 0.02201 0.00 800 800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.02408 0.00 900 900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.02614 0.00 1000 1000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.02821 0.00 1100 1100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.03027 0.00 1200 1200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.03234 0.00 1300 1300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.0344 0.00 1400 1400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.03647 0.00 1500 1500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.03853 0.00 1600 1600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.0406 0.00 1700 1700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.04266 0.00 1800 1800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.04473 0.00 1900 1900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.04679 0.00 2000 2000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.04886 0.00 2100 2100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.05092 0.00 2200 2200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.05299 0.00 2300 2300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.05505 0.00 2400 2400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.05712 0.00 2500 2500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.05918 0.00 2600 2600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.06125 0.00 2700 2700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.06332 0.00 2800 2800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.06538 0.00 2900 2900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.06745 0.00 3000 3000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.06951 0.00 3100 3100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.07158 0.00 3200 3200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.07364 0.00 3300 3300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.07571 0.00 3400 3400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.07777 0.00 3500 3500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.07984 0.00 3600 3600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.0819 0.00 3700 3700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.08397 0.00 3800 3800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.08603 0.00 3900 3900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.0881 0.00 4000 4000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.09016 0.00 4100 4100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.09223 0.00 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 V Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A5 of A19

4200 4200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.09429 0.00 4300 4300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.09636 0.00 4400 4400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.09842 0.00 4500 4500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1005 0.00 4600 4600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1026 0.00 4700 4700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1046 0.00 4800 4800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1067 0.00 4900 4900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1087 0.00 5000 5000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1108 0.00 5100 5100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1129 0.00 5200 5200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1149 0.00 5300 5300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.117 0.00 5400 5400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1191 0.00 5500 5500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1211 0.00 5600 5600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1232 0.00 5700 5700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1253 0.00 5800 5800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1273 0.00 5900 5900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1294 0.00 6000 6000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1315 0.00 6100 6100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1335 0.00 6200 6200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1356 0.00 6300 6300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1377 0.00 6400 6400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1397 0.00 6500 6500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1418 0.00 6600 6600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1439 0.00 6700 6700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1459 0.00 6800 6800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.148 0.00 6900 6900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.15 0.00 7000 7000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1521 0.00 7100 7100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1542 0.00 7200 7200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1562 0.00 7300 7300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1583 0.00 7400 7400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1604 0.00 7500 7500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1624 0.00 7600 7600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1645 0.00 7700 7700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1666 0.00 7800 7800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1686 0.00 7900 7900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1707 0.00 8000 8000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1728 0.00 8100 8100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1748 0.00 8200 8200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1769 0.00 8300 8300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.179 0.00 8400 8400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.181 0.00 8500 8500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1831 0.00 8600 8600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1852 0.00 8700 8700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1872 0.00 8800 8800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1893 0.00 8900 8900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1914 0.00 9000 9000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1934 0.00 Revision 0 1 V Preparer/Date Checker/Date File No.

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9100 9100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1955 0.00 9200 9200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1975 0.00 9300 9300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.1996 0.00 9400 9400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2017 0.00 9500 9500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2037 0.00 9600 9600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2058 0.00 9700 9700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2079 0.00 9800 9800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2099 0.00 9900 9900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.212 0.00 10000 10000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2141 0.00 10100 10100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2161 0.00 10200 10200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2182 0.00 10300 10300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2203 0.00 10400 10400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2223 0.00 10500 10500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2244 0.00 10600 10600 5.70e+001 7.98c+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2265 0.00 10700 10700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2285 0.00 10800 10800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2306 0.00 10900 10900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2327 0.00 11000 11000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2347 0.00 11100 11100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2368 0.00 11200 11200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2388 0.00 11300 11300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2409 0.00 11400 11400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.243 0.00 11500 11500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.245 0.00 11600 11600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2471 0.00 11700 11700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2492 0.00 11800 11800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2512 0.00 11900 11900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2533 0.00 12000 12000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2554 0.00 12100 12100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2574 0.00 12200 12200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2595 0.00 12300 12300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2616 0.00 12400 12400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2636 0.00 12500 12500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2657 0.00 12600 12600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2678 0.00 12700 12700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2698 0.00 12800 12800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2719 0.00 12900 12900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.274 0.00 13000 13000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.276 0.00 13100 13100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2781 0.00 13200 13200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2802 0.00 13300 13300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2822 0.00 13400 13400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2843 0.00 13500 13500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2863 0.00 13600 13600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2884 0.00 13700 13700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2905 0.00 13800 13800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2925 0.00 13900 13900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2946 0.00 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 FileNo. PBCH-09Q-302 Page A7 of A19

14000 14000 5.70e+001 7.98e+000 4.9be+001 0.14 2.07e-005 2.07e-003 0.2967 0.00 14100 14100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.2987 0.00 14200 14200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3008 0.00 14300 14300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3029 0.00 14400 14400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3049 0.00 14500 14500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.307 0.00 14600 14600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3091 0.00 14700 14700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3111 0.00 14800 14800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3132 0.00 14900 14900 5.70e+001 7.98e+000 4.90e+-001 0.14 2.07e-005 2.07e-003 0.3153 0.00 15000 15000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3173 0.00 15100 15100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3194 0.00 15200 15200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3215 0.00 15300 15300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3235 0.00 15400 15400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3256 0.00 15500 15500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3276 0.00 15600 15600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3297 0.00 15700 15700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3318 0.00 15800 15800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3338 0.00 15900 15900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3359 0.00 16000 16000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.338 0.00 16100 16100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.34 0.00 16200 16200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3421 0.00 16300 16300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3442 0.00 16400 16400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3462 0.00 16500 16500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3483 0.00 16600 16600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3504 0.00 16700 16700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3524 0.00 16800 16800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3545 0.00 16900 16900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3566 0.00 17000 17000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3586 0.00 17100 17100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3607 0.00 17200 17200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3628 0.00 17300 17300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3648 0.00 17400 17400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3669 0.00 17500 17500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3689 0.00 17600 17600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.371 0.00 17700 17700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3731 0.00 17800 17800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3751 0.00 17900 17900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3772 0.00 18000 18000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3793 0.00 18100 18100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3813 0.00 18200 18200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3834 0.00 18300 18300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3855 0.00 18400 18400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3875 0.00 18500 18500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3896 0.00 18600 18600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3917 0.00 18700 18700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3937 0.00 18800 18800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.3958 0.00 Revision .0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 1 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A8 of A19

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28700 28700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6002 0.00 28800 28800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6023 0.00 28900 28900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6044 0.00 29000 29000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6064 0.00 29100 29100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6085 0.00 29200 29200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6106 0.00 29300 29300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6126 0.00 29400 29400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6147 0.00 29500 29500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6168 0.00 29600 29600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6188 0.00 29700 29700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6209 0.00 29800 29800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.623 0.00 29900 29900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.625 0.00 30000 30000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6271 0.00 30100 30100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6292 0.00 30200 30200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6312 0.00 30300 30300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6333 0.00 30400 30400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6353 0.00 30500 30500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6374 0.00 30600 30600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6395 0.00 30700 30700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6415 0.00 30800 30800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6436 0.00 30900 30900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6457 0.00 31000 31000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6477 0.00 31100 31100 5.70e+001 7.98c+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6498 0.00 31200 31200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6519 0.00 31300 31300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6539 0.00 31400 31400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.656 0.00 31500 31500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6581 0.00 31600 31600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6601 0.00 31700 31700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6622 0.00 31800 31800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6643 0.00 31900 31900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6663 0.00 32000 32000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6684 0.00 32100 32100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6705 0.00 32200 32200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6725 0.00 32300 32300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6746 0.00 32400 32400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6767 0.00 32500 32500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6787 0.00 32600 32600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6808 0.00 32700 32700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6828 0.00 32800 32800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6849 0.00 32900 32900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.687 0.00 33000 33000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.689 0.00 33100 33100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6911 0.00 33200 33200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6932 0.00 33300 33300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6952 0.00 33400 33400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6973 0.00 33500 33500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.6994 0.00 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page All of A19

ft 33600 33600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7014 0.00 33700 33700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7035 0.00 33800 33800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7056 0.00 33900 33900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7076 0.00 34000 34000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7097 0.00 34100 34100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7118 0.00 34200 34200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7138 0.00 34300 34300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7159 0.00 34400 34400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.718 0.00 34500 34500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.72 0.00 34600 34600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7221 0.00 34700 34700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7241 0.00 34800 34800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7262 0.00 34900 34900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7283 0.00 35000 35000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7303 0.00 35100 35100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7324 0.00 35200 35200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7345 0.00 35300 35300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7365 0.00 35400 35400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7386 0.00 35500 35500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7407 0.00 35600 35600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7427 0.00 35700 35700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7448 0.00 35800 35800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7469 0.00 35900 35900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7489 0.00 36000 36000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.751 0.00 36100 36100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7531 0.00 36200 36200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7551 0.00 36300 36300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7572 0.00 36400 36400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7593 0.00 36500 36500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7613 0.00 36600 36600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7634 0.00 36700 36700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7655 0.00 36800 36800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7675 0.00 36900 36900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7696 0.00 37000 37000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7716 0.00 37100 37100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7737 0.00 37200 37200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7758 0.00 37300 37300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7778 0.00 37400 37400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7799 0.00 37500 37500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.782 0.00 37600 37600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.784 0.00 37700 37700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7861 0.00 37800 37800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7882 0.00 37900 37900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7902 0.00 38000 38000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7923 0.00 38100 38100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7944 0.00 38200 38200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7964 0.00 38300 38300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.7985 0.00 38400 38400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8006 0.00 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A12 of A19

38500 38500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8026 0.00 38600 38600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8047 0.00 38700 38700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8068 0.00 38800 38800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8088 0.00 38900 38900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8109 0.00 39000 39000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8129 0.00 39100 39100 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.815 0.00 39200 39200 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8171 0.00 39300 39300 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8191 0.00 39400 39400 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8212 0.00 39500 39500 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8233 0.00 39600 39600 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8253 0.00 39700 39700 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8274 0.00 39800 39800 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8295 0.00 39900 39900 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8315 0.00 40000 40000 5.70e+001 7.98e+000 4.90e+001 0.14 2.07e-005 2.07e-003 0.8336 0.00 End of pc-CRACK Output File No. PBCH-09Q-302 I

tm pc-CRACK for Windows Version 3.1-98348 (C) Copyright '84 - '98 Structural Integrity Associates, Inc.

3315 Almaden Expressway, Suite 24 San Jose, CA 95118-1557 Linear Elastic Fracture Mechanics Date: Mon Feb 09 10:59:19 2004 Input Data and Results File: PB IFCG.LFM

Title:

PBCH-09Q-302: Point Beach Unit I Fatigue Crack Growth Load Cases:

Stress Coefficients Case ID CO Cl C2 C3 Type Residual 60 0 0 0 Coeff Operating 20 0 0 0 Coeff

Through Wall Stresses for Load Cases With Stress Coeff----

Wall Case Case Depth Residual Operating 0.0000 60 20 0.1000 60 20 0.2000 60 20 0.3000 60 20 0.4000 60 20 0.5000 60 20 0.6000 60 20 0.7000 60 20 0.8000 60 20 0.9000 60 20 1.0000 60 20 Crack Model: Single Edge Cracked Plate Crack Parameters:

Plate width: 2.0000

Max. crack size: 1.0000

Stress Intensity Factor-------------

Crack Case Case Size Residual Operating 0.0200 16.2806 5.42685 0.0400 23.1837 7.7279 0.0600 28.5895 9.52983 0.0800 33.2379 11.0793 0.1000 37.4133 12.4711 0.1200 41.2605 13.7535 0.1400 44.8649 14.955 0.1600 48.2816 16.0939 0.1800 51.5488 17.1829 0.2000 54.6939 18.2313 0.2200 58.4858 19.4953 0.2400 62.2586 20.7529 0.2600 66.021 22.007 0.2800 69.7794 23.2598 0.3000 73.5391 24.513 0.3200 77.3044 25.7681 0.3400 81.0788 27.0263 0.3600 84.8651 28.2884 0.3800 88.6656 29.5552 0.4000 92.4824 30.8275 0.4200 97.0061 32.3354 0.4400 101.582 33.8605 0.4600 106.209 35.4029 0.4800 110.888 36.9626 0.5000 115.618 38.5394 0.5200 120.4 40.1334 0.5400 125.234 41.7446 0.5600 130.118 43.3727 0.5800 135.054 45.0179 0.6000 140.04 46.6799 0.6200 146.332 48.7773 0.6400 152.715 50.9049 0.6600 159.186 53.0621 0.6800 165.746 55.2486 0.7000 172.392 57.464 0.7200 179.124 59.7079 0.7400 185.94 61.98 0.7600 192.84 64.2799 0.7800 199.822 66.6073 0.8000 206.886 68.9619 0.8200 216.919 72.3064 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A15 of A19

0.8400 227.102 75.7008 0.8600 237.433 79.1444 0.8800 247.91 82.6366 0.9000 258.53 86.1767 0.9200 269.292 89.7641 0.9400 280.195 93.3982 0.9600 291.235 97.0783 0.9800 302.412 100.804 1.0000 313.724 104.575 rack Growth Laws:

wID: Alloy 52 Model: ASME Section XI - austenitic stainless steel in air environment da/dN = C

1OF

S

dKA3.3 where S = 1.0 forR< 0

= 1.0+ 1.8

R for0<R<0.79

= 43.5 + 57.97

R for 0.79 < R < I F = code specified function of temperature dK = Kmax - Kmin R = Kmin / Kmax where:

C

IOAF = 1.9352e-010 is for the currently selected units of:

force: kip length: inch temperature: 592.0000 Fahrenheit Material Fracture Toughness KIc:

Material ID: Alloy 52 Depth Klc 0.0000 200.0000 0.5000 200.0000 2.0000 200.0000

[nitial crack size= 0.1000 Max. crack size= 1.0000 Number of blocks= I Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A16 of A19

Print increment of block= I Cycles Calc. Print Crk. Grw. Mat.

Subblock /Time incre. incre. Law Klc FCG 1000 10 10 Alloy 52 Alloy 52 Kmax Kmin Subblock Case ID Scale Factor Case ID Scale Factor FCG Residual 1.0000 Residual 1.0000 Operating 1.0000 Crack growth results:

Total Subblock Cycles Cycles DaDn

/Time /Time Kmax Kmin DeltaK R /DaDt Da a althk Block: 1 10 10 4.99e+001 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1 0.05 20 20 4.99e+O01 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1 0.05 30 30 4.99e+001 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1001 0.05 40 40 4.99e+001 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1001 0.05 50 50 4.99e+001 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1001 0.05 60 60 4.99e+001 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1001 0.05 70 70 4.99e+001 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1001 0.05 80 80 4.99e+001 3.74e+001 1.25e+001 0.75 1.88e-006 1.88e-005 0.1002 0.05 90 90 4.99e+001 3.74e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1002 0.05 100 100 4.99e+001 3.74e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1002 0.05 110 110 4.99e+001 3.74e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1002 0.05 120 120 4.99e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1002 0.05 130 130 4.99e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1002 0.05 140 140 4.99e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1003 0.05 150 150 5.0Oe+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1003 0.05 160 160 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1003 0.05 170 170 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1003 0.05 180 180 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1003 0.05 190 190 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1004 0.05 200 200 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1004 0.05 210 210 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1004 0.05 220 220 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1004 0.05 230 230 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1004 0.05 240 240 5.00e+001 3.75e+001 1.25e+001 0.75 1.89e-006 1.89e-005 0.1005 0.05 250 250 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1005 0.05 260 260 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1005 0.05 Revision 0 1 Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A17 of A19

270 270 5.OOe+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1005 0.05 280 280 5.00e+001 3.75e+001 1.25e+001 0.75 I.90e-006 1.90e-005 0.1005 0.05 290 290 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1005 0.05 300 300 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1006 0.05 310 310 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1006 0.05 320 320 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1006 0.05 330 330 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1006 0.05 340 340 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1006 0.05 350 350 5.00e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1007 0.05 360 360 5.01e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1007 0.05 370 370 5.01e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1007 0.05 380 380 5.01e+001 3.75e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1007 0.05 390 390 5.01e+001 3.76e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1007 0.05 400 400 5.01e+001 3.76e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1008 0.05 410 410 5.01e+001 3.76e+001 1.25e+001 0.75 1.90e-006 1.90e-005 0.1008 0.05 420 420 5.Ole+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1008 0.05 430 430 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1008 0.05 440 440 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1008 0.05 450 450 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1009 0.05 460 460 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1009 0.05 470 470 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1009 0.05 480 480 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1009 0.05 490 490 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1009 0.05 500 500 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1009 0.05 510 510 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.101 0.05 520 520 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.101 0.05 530 530 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.101 0.05 540 540 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.101 0.05 550 550 5.01e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.101 0.05 560 560 5.02e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1011 0.05 570 570 5.02e+001 3.76e+001 1.25e+001 0.75 1.91e-006 1.91e-005 0.1011 0.05 580 580 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1011 0.05 590 590 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1011 0.05 600 600 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1011 0.05 610 610 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1012 0.05 620 620 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1012 0.05 630 630 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1012 0.05 640 640 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1012 0.05 650 650 5.02e+001 3.76e+001 1.25e+001 0.75 1.92e-006 1.92e-005 0.1012 0.05 660 660 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1013 0.05 670 670 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1013 0.05 680 680 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1013 0.05 690 690 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1013 0.05 700 700 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1013 0.05 710 710 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1014 0.05 720 720 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1014 0.05 730 730 5.02e+001 3.77e+001 1.26e+001 0.75 1.92e-006 1.92e-005 0.1014 0.05 740 740 5.02e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1014 0.05 750 750 5.02e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1014 0.05 Revision 0 1 V Preparer/Date Checker/Date File No.

HLG 2/17/04 GLS 2/17/04 PBCH-09Q-302 HLG 5/12/04 MQ 5/12/04 Page A18 of A19

760 760 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1014 0.05 770 770 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1015 0.05 780 780 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1015 0.05 790 790 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1015 0.05 800 800 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1015 0.05 810 810 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1015 0.05 820 820 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1016 0.05 830 830 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1016 0.05 840 840 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1016 0.05 850 850 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1016 0.05 860 860 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1016 0.05 870 870 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1017 0.05 880 880 5.03e+001 3.77c+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1017 0.05 890 890 5.03e+001 3.77e+001 1.26e+001 0.75 1.93e-006 1.93e-005 0.1017 0.05 900 900 5.03e+001 3.77e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1017 0.05 910 910 5.03e+001 3.77e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1017 0.05 920 920 5.03e+001 3.77e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1018 0.05 930 930 5.03e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1018 0.05 940 940 5.03e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1018 0.05 950 950 5.03e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1018 0.05 960 960 5.03e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1018 0.05 970 970 5.04e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1019 0.05 980 980 5.04e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1019 0.05 990 990 5.04e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1019 0.05 1000 1000 5.04e+001 3.78e+001 1.26e+001 0.75 1.94e-006 1.94e-005 0.1019 0.05 End of pc-CRACK Output Revision 0 1_

Preparer/Date HLG 2/17/04 HLG 5/12/04 Checker/Date GLS 2/17/04 MQ 5/12/04 File No. PBCH-09Q-302 Page A19 of A19

NRC 2004-0051, Letter from G. D. Van Middlesworth, NMC, to NRC Reactor Vessel Closure Head Penetration Repair and Flow Characterization Relief Requests

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NRC 2004-0051, Letter from G. D. Van Middlesworth, NMC, to NRC Reactor Vessel Closure Head Penetration Repair and Flow Characterization Relief Requests

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