Rev 0 to, 'Design & Evaluation Criteria for Weld Overlay ...pipe wall thickness through the...

-·

• I

- \ -

XCE-53-101 Revision O COE045.0101

DESIGN AND EVALUATION CRITERIA

FOR WELD OVERLAY REPAIRS

AT THE

DRESDEN NUCLEAR POWER PLANT UNIT 2 1990 OUTAGE

Prepared for: Commonwealth Edison Company

Prepared by: NUTECH Engineers

Reviewed by:

Approved by:

c. H. Froehlich, P.E. Engineering Manager

9012200058 901217 PDR Al)OCK 05000237 , G! PDR t'

__ ,_,;,._ ___ --------·- --- '

Issued by:

&?17~/:w-J. R. Sheffield, P.E. Project Manager

Date:_l'2_~_~_/_9_0 __

NUTllH ENONE£R5

•.! t·

.r

.•.. '\

ATTACHMENT B

DESIGN AND EVALUA T/ON CRITt=RIA ·

FOR

WELD OVl;RLA Y REPAIRS

AT THE

DRESDEN NUCLEAR POWER PLANT UNIT 2 (1990 OUTAGE)

XCE-53-101 Revision o_ COE045.0101

DESIGN AND EVALUATION CRITERIA

FOR

WELD OVERLAY REPAIRS =

AT THE DRESDEN NUCLEAR POWER PLANT UNIT 2 1990 OUTAGE

Prepared for:

Commonwealth Edison Company

Reviewed by:

. w. Axline, P.E. 'ect Engineer

Approved by:

c. H. Froehlich, P.E. Engineering Manager

Prepared by: NUTECH Engineers

Issued by:

O:i.Ll/. :7~ -r;_ J. R. Sheffield, P.E •. Project Manager

Date:_12_~_~_/_90 __

NUTECH ENBNEER5

REVISION CONTROL SHEET

TITLE: Design and Evaluation DOCUMENT FILE- NUMBER: COEO 45.0101 Criteria ~or ~eld Overlay Repairs at the Dresden Nuclear Power Plant Unit 2 1990 Outage

Carl H. Froehlich I Staff Engineer

NAME/ TITLE

James W. Axline I Principal Engineer

FECTED DOC GEIS) REV

iv -vi

0

1.1 - 0 1.6

2.1 & 0 2.2

3.1 - 0 3.7

4.1 0

5.1 0

A.0 - 0 A.19

B.0 -B.19

0

PREPARED BY I DATE

NAME/ TITLE

NAME/ TITLE

NAMI! I TITLI!

ACCURACY CRITERIA CHECK BY I DATE CHECK BY I OA'T'E

INITIALS

~L3k--INITIALS

INITIALS

INITIALS

REMARKS

Initial Issue

PAGE __ l __ OF __ l_

. OEP J.J.1 .1

--• CERTIFICATION BY REGISTERED PROFESSIONAL ENGINEER

I hereby certify that this document and the calculations contained herein were prepared by me or under my direct supervision, and to the best of my knowledge are correct and complete. I further certify that, to the best of my knowledge, design margins required

by the original Code of Construction have not been reduced as a result of the activities addressed herein. I am a duly Registered

Professional Engineer under the laws of the State of California and am competent to review this document.

XCE-53-101 Revision o

Certified by:

c. H. Froehlich, P.E. Registered Professional Engineer State of California Registration No. c 027862

1z/1P/~o

iii

NUTECH ENEINEER5

TABLE OF CONTBNTS

LIST OF TABLES

LIST OF FIGURES

1.0

2.0

3.0

. 4. 0

5.0

INTRODUCTION

REPAIR AND RESIDUAL STRESS IMPROVEMENT DESCRIPTION

EVALUATION CRITERIA

3.1 3.2

Weld overlay Repaired Weldments Unrepaired Flawed Weldments

SUMMARY AND CONCLUSIONS

REFERENCES

v

vi

1.1

2.1

3.1

3.1 3.3

4.1

5.1

APPENDIX A - Comparison and Description of Flawed A.O Weldments

APPENDIX B - Weld Overlay Repair Design Drawings B.O


iv

NUTECH ENEINEER5

• NuJ1lber

3.0-1

3.0-2

XCE-53-101 Revisiono

LIST OF TABLES

Title

Expanded Allowable End-of-Evaluation Period Flaw Depth-to-Thickness Ratio for Circumferential Flaws in Base Metal or GTAW/GMAW Weldments - Normal Operating Conditions

Leak Barrier Repair Criteria for Axial Flaws

v

3.4

3.5

NUTECH IENBNEER5

• Number

1.0-1

1.0-2

1.0-3

3.0-1

3.0-2


LIST OF FIGURf!S

Title ~

Dresden Unit 2 1990 Outage - Weld 1.4 overlay Locations - Reactor Recircu-lation System Loop "A"

Dresden Unit 2 1990 ouagte - Weld 1.s overlay Locations - Reactor Recircu-lation System Loop "B"

Dresden Unit 2 1990 outage - Weld 1.6 Overlay Locations - Reactor Water Clean-up System

Source Equations for Allowable End-of- 3.6 Evaluation Period Flaw Depth-to-Thicknes~ Ratios for Circumferential Flaws

Standard Weld overlay Repair Length 3,7

vi

NUTECH ENHNEER§

-• 1.0 INTRQDUCTION

This report presents the design and evaluation criteria used

by NUTECH to address indications in 19 weldments in the

Reactor Recirculation, Shutdown cooling, and Reactor Water

Clean-up systems to receive weld overlay repairs during the

current 1990 outage (D2Rl2)-at Commonwealth Edison's Dresden

Nuclear Power Plant Unit 2. Ultrasonic (UT) examinations of

welds in these systems since 1983 have identified flaws

judged to be intergranular stress corrosion cracking

(IGSCC). The locations of these 19 weldments are shown in

Figures 1. 0-1 through 1. 0-3. ·Appendix A presents

descriptions of the IGSCC flaw indications within these

weldments. Appendix B presents the weld overlay repair·

details to be applied during the current Dresden Unit 2 1990

outage.

The following weldments with overlay repairs from the

Dresden Unit 2 1988 outage are being built-up to "standard"

overlays during the current Dresden Unit 2 1990 outage:

, PD1-Dl6 PD9-D7

PD1/L2 L5-D3

PD5-D21 8-Kl2

PD6-D18 8-K14

PD8-D9 8-Kl6

PD8-D10

The following weldment which received a "standard" weld

overlay repair during the Dresden Unit 2 1988 outage will

have a number of overlay fabrication defects repaired and

the addition of a capping GTAW machine layer during the

current Dresden Unit 2 1990 outage:

. PD5-D20

XCE-53-101 Revision O·

1.1

NUTECH ENBNEER5

• -

The following unflawed weldments will be receiving

"standard" weld overlay re~airs during the current Dresden

Unit 2 outage in anticipation of future IGSCC and/or to act

as "load leveling" repairs to reduce system weld overlay

repair axial shrinkage stresses:

·PDl-015

PD6-Dl9

8-16

The following weldments will be receiving "standard" weld

overlay repairs for flaws identified during the current

Dresden Unit 2 1990 outage:

202-SA/PDlB 16-8

The following weldment will be receiving a "design" weld

overlay repair for the purpose of providing a "leakage

barrier" that meets the requirements of NUREG-0313

(Reference 1) for a single axial flaw identified during the

current Dresden Unit 2 1990 outage:

PS1A-D5

The following weldment will be receiving a "residual stress

improvement" weld overlay repair for nminor" circumferential

flaw indications (as defined in NUREG-0313) identified

during the current Dresden Unit 2 outage:

PS2A/202-1B

The purpose of this report is to present the weld overlay

repair designs to be applied during the current Dresden Unit

2 1990 outage and the criteria used to qualify these

overlays as nstandardn or "designn overlays as defined in

NUREG-0313 so that they may be placed in NUREG-0313


1.2

NU TECH ENDNEERS

-inservice inspection (ISI) Category "E". This report also

documents the use of a "residual stress improvement" weld overlay repair for a weldment with "minor" flaw indications

as defined by NUREG-0313 to shift this weldment from NUREG-

0313 ISI Category "F" to "E".

Section 2. O presents a gen-eral description of the overlay

repairs. Section 3.0 presents the design and evaluation

criteria used in the analysis of these overlay repairs and

stress-improved flawed weldment. Sections 4. O and 5. o present a summary of conclusions and the references used in

the report. Appendix A presents a comparison and

description of the flawed weldments addressed by this

report. Appendix B presents the weld overlay design

drawings for the weldments repaired or stress-improved

during the 1990 outage.

XCE-53-101 Revision O

1.3

NUTECH ENEINEER5

•

• XCE-53·-101 Revision o

PD1-D16

PD1-D15

PD6-D19 PDS-020

202-5AIPD1 B

Figure l.0-1

DBB5Dllf QlfIT 2 1990 QQ'l'AGB - MRTD OVBRLAY LQCATXOlfS

RMC'l'OR RICXRCIJLA.TIQB 5YSTBll LOQP "A" (References 2 and 3)

1.4

NU TECH ENEINEER5

•


P09-07

PS2Al202-1 B

Figure l.0-2

DBBfiDBH OlflT 2 1990 OIJTAGB Jm.P OVBRLAY LQCATIOJIS

RBACTQR RICIRCQLATIOB SYSTlll LOQP (Reference 2)

1.5

NU TECH . ENHNEER5

•

XCE-53-101 Revision. O

8-18

T/G EL. 537' • 1 1/4"

----- TO REACTOR VESSEL DRAIN

j_ ~SHUTDOWN COOLING

Figure 1.0-3

DBMDIB tJlfIT 2 1990 OJJ'l'AGB m.n 0\1BRLAY LQCATIOJIS

RIAC'l'OR WATBR CJ,JWf-QP SYSTlll (Reference 4)

1.6

NUnwEER5 -END .

•

•

2.0 REPAIR AHO RESIDUAL STBESS IMPR<>VBlmliT DESCRIPTION

At the end of the 1990 outage, all welds with overlays at Dresden Unit 2 are planned to be Category "E" weldments per the requirements of NUREG-0313 (Reference 1). "Standard", "design", _and "residual stress improvement" weld overlay repairs will be made during this outage by increasing the pipe wall thickness through the deposition of weld metal 360 degrees around and to either side of the existing weld. For the "standard" and "design" overlays, the weld-deposited band provides additional wall thickness· to restore the

original Code safety margin. In all cases where waterbacking is employed, the welding process produces a strong compressive residual stress pattern on the inside portion of the pipe wall (as discussed in the Reference 5 paper), which prevents further crack growth. The deposited weld metal is either Type 308L or Type 309L with controlled delta ferrite content so as to be resistant to the propagation of IGSCC. Design drawings for all the overlays are presented in Appendix B.

The nondestructive examination (NOE) of the weld overlay repairs to be applied during the Dresden Unit 2 1990 outage

consists of the following:

1. Surface examination by the liquid-penetrant testing · (PT) technique in accordance with ASME section XI of

either the existing pipe surf ace or a "throw-away" first layer • A "throw-away" first layer may be used

for weldments with such extensive surface indications

that ALARA (As LOW As Reasonably Achievable) radiation exposure concerns are not best served by individual welding repairs.


2.1

NU TECH ENEINEER5

•

i J·

2. Delta ferrite content measurement of the first layer

used .as part of the overlay design thickness ..

3. Visual examination of the first weld overlay layer used

as part of the overlay design thickness for evidence of

IGSCC flaws using enhanced acceptance criteria (no

discoloration, porosity, linear indications, etc.).

4. Surface examination of the completed weld overlay by

the PT technique in accordance with ASME section XI.

5. Volumetric examination of· the completed weld overlay

. repair and part of the original pipe wall by the

ultrasonic testing (UT) technique developed by EPRI.

All UT examinations will be performed by EPRI-qualif ied

examiners.


2.2

NU TECH .. ENHNEERS.

•

3 • 0 BVALIJATIQlf CRITERIA

Eighteen Reactor Recirculation, Shutdown Cooling, and Reactor Water Clean-up system weld overlay repairs to be applied during the Dresden Unit 2 1990 outage were designed to meet the requirements of "standard" and "design" overlay repairs as defined in NUREG~0313, Revision 2 (Reference 1). In addition, a ·"residual stress improvement" weld overlay repair will be applied to a weldment with "'minor" flaw

indications as defined by NUREG-0313.

3 • 1 Weld Qyerlay Bepaired wel<iments

The following criteria were used by NUTECH to design the "standard" and "design" weld overlay repairs presented in Appendix A:

1. For welds with circumferential flaws, the circumferential flaw profile was assumed to have a depth equal to the greater of 100% of the original pipe wall thickness or the depth associated with the smallest

remaining ligament over a conservative 360 degree length.

2. For welds with axial flaws, the axial flaw depth was

. assumed to be 100% of the original pipe wall thickness with a length equal to the greater of 1.5 times the

pipe wall thickness or its measured length. If an axial flaw was drawn up into an existing overlay due· to

a steam blow-out, the actual flaw depth was used.

3. credit will be taken for the first layer if its delta


ferrite content is at least 7.5 FN. If the ferrite

content is below this value, any circumferential or axial flaws will be assumed to extend through the first

3.1

NUTECH· ENBNEER5

••

•

4.

layer in NUTECH's post-outage as-built reconciliation evaluation.

A bounding under-the-overlay fatigue crack growth of 0.005 inch was used in the overlay design. This was established based on analysis performed by NUTECH in References 6 through - 8 using a conservative crack growth correlation derived from data presented in Reference 9.

5. For circumferential flaws, the weld overlay repair

strength for a combination of dead weight, internal pressure, and seismic stresses was compared to the net section plastic collapse criteria of ASME Section XI,

Table IWB-3641-1 (Reference 10). Because this table has an arbitrary cut-off point at a stress ratio of 0.6, NUTECH has developed an expanded version (Table 3.0-1) based upon the Table IWB-3641-1 source equations shown in Figure 3.0-1.

6. For axial flaws, the weld overlay repair was compared

to "leak .barrier" weld overlay repair criteria presented in Table 3.0-2 from NUTECH Document COM-76-

001 (Reference 11).

Except for weld overlay repairs that tie into pumps, valves, or other components with large surface transitions, the

standard axial length from the center line of the original butt weld to the shoulder of a weld overlay repair is

approximately equal to the square root of the original pipe wall thickness times the mean pipe radius (see Figure 3.0-2;

this simple rule-of-thumb for acceptable weld overlay repair length has been demonstrated both analytically and

experimentally by NUTECH and others).

XCE-53-101-Revision o

3.2

NUTECH ENEINEER5-

• 3.2 Unrepaired Flawed. Weldllents

Weld No. PS2A/202-1B has three widely spaced flaw

indications with a maximum through-wall depth of 20% and

maximum circumferential length of · 3. 5". Because these

indications fall within the "minor" cracking size envelope ·

recommended by Section 4.5 of NUREG-0313 for stress

improvement mitigation, this weldment will receive a two

layer "residual stress improvement" weld overlay repair

during the current Dresden Unit 2 outage. As part of

NUTECH's post-outage as-built reconciliation, a final flawed

pipe evaluation will be performed for this weldment that

will include the affect of actual weld overlay repair axial

shrinkages on the sustained stress state of this weldment.


3.3

NU TECH ENEINEERs· ..

,_. Table 3.0-1

EXPANDED biil.OWABLB EHD::Qf-EVALUMIQll fBBIQD FLAif DEPTH-TO-THICKHESS BA~IQ fQB ~IBCUMFEREHTIAL FLAKS

Ilf BASB METAL QB GTAlf/GMAlf WEI1DMENTS NORMAL QfERA~IBG ~HDI~IOMS

p + Pb m Ratio of Flaw Length, tf, to Pipe Circumference (Notes s

r.t (Note 3)

a.a 0.1 0.2 0.3

1. 5 (4) (4) ( 4) (4) 1.4 0.75 0.40 0.21 1.3 0.75 0.75 0.39 1.2 0.75 0.75 0.56 1.1 0.75 0.75 0.73 1.0 0.75 0.75 0.75 0.9 0.75 0.75 0.75 a.a 0.75 0.75 0.75 0.7 . o. 75 0.75 0.75 0.6 0.75 0.75 0.75 0.5 (5) 0.75 0.75 0.75 0.4 ( 5) 0.75 0.75 0.75 0.36 (5) 0.75 0.75 0.75

NOTES:

(1) Flaw depth •an for a surface flaw 2an ~or a subsurface flaw

t = nominal thickness Linear interpolation is permissible.

0.15 0.27 0.40 0.51 0.63 0.73 0.75 0.75 0.75 0.75 0.75 0.75

(2) Circumference based on nominal pipe diameter. (3) Pm • pricary membrane stress

Pb • primary bending stress

a.s 0.4 or More

(4) (4) (4) (4) 0.22 0.19 0.32 0.27 0.42 0.34 0.51 0.41 0.59 0.47 0.68 0.53 0.75 o.5a 0.75 0.63 0.75 0.68 0.75 0.73 0.75 0.75

Sm • allowable design stress intensity (in accordance with Section III)

(4) IWB-3514.3 shall be used. (~) Derived using source equations.

3.4

l , 2 )

XCE-53-101 Revision o NU TECH

ENEINEER5

• Table 3.0-2

LEAK BARBIER REPAIR CRITER.IA FOR AXIAL fLAWS (Reference 11)

NONOIMENSIONAL FLAW LENGTH

STRESS 9f I ./_ RT RATIO

0.00 0.25 0.50 1.00 2.00

s 0.40 • • . • • 0.50 • • • • .. 0.60 • • • • .. 0.70 • • • • .. 0.80 • • • • .. 0.90 • • • .. 0.95 • •

-

1.00 -

• LEAK BARRIER ONLY REQUIRED

STRESS RATIO• PO 12 T Sm

P. • MAXIMUM PRESSURE FOR NORMAL OPERATING CONOmONS

0 • NOMINAL OUTSIDE DIAMETER OF THE PIPE

T • NOMINAL THICKNESS

~ • ENO-OF-EVALUATION PERIOD FLAW LENGTH

R • NOMINAL RADIUS OF THE PIPE


3.5

~

.....

IWB-3640

NU TECH ENBNEER5

•

P'or G + I ( 1100

l W - G ! 9 • 6 t <radian• I

2.773 CSRI - 0.5 - ~ (2 •in I - ~ •ln G) • O

ror ~ + e > 1100

Wh•r••

( 5 _ I I I • t t Cradian1 I • a

2 - t

2.111 csa1 - o.s - ~ <2 ~ f> •in 1 • o

~ • ~alf•crack l•noth <radian•) I • neutral axi• location aft91• (radian•) a • flaw depth Cinch••) t •pipe thickn••• Cincae•) sa • 1tre11 ratio • ,. • pt Pa • pri .. ry llellbrane ltr11a Pb • prlllary bend1no 1tr••• Sa • allowa~l• 1tr••• int1n1ity

(per Allll Section III Appendicee)

•

·~~,, ------... ~ . la • .... tral All!• • • ..... lacU.118

Figure 3.0-1

SQURCB BOUATIQBS FOR AJ,IQMABLB BllD=QP-BVALIJATIOH PBRIOQ FI.AW PBPl'R-TO=TBICQBSS RATIOS FOR CIRWllfBUllTUL f'LMIS


3.6

NU TECH ENEINEER5

•

R


---- -ct, PIPE

Figure J.0-2

D OVERLAY RBPAIR 1·BllGTll STANDARD m._ ------:-

3.7

T

• 4.0 SUJDIARY ARD CONCLQSIONS

Nineteen Reactor Recirculation, Shutdown Cooling, and

Reactor Water Clean-up system welds are to receive weld

overlay repairs during the Dresden Unit 2 1990 outage

(D2Rl2). Seventeen of these weldments will receive

"standard" weld overlay rapairs, one will receive a "design"

overlay repair, and one will receive a "residual stress

improvement" .overlay repair. Therefore, at the end of the

Dresden Unit 2 1990 outage, all of these weldments can be

placed in NUREG-0313 ISI Category "E".


4.1

NU TECH IENlllNEER5

• 5.0 RBFERElf CES

1. NRC Document NUREG-0313, "Technical Report on Material Selection and Processing Guidelines for BWR Coolant Pressure Boundary Piping", Revision 2.

2. Sargent & Lundy (S&L) Drawing No. ISI-103, "Inservice Inspection Class I - Nuclear Boiler & Reactor Recirculation Piping - Dresden Nuclear Power Station Unit 2", Revision c.

3. S&L Drawing No. ISI-108, "Inservice Inspection Class I - Reactor Shutdown Cooling Piping - Dresden Nuclear Power Station Unit 2", Revision B.

4. S&L Drawing No. ISI-107, "Inservice Inspection Class I - Reactor Water Clean-up Piping - Dresden Nuclear Power Station Unit 2", Revision E.

5. Kulat, S.D., Pitcairn, D.R., and Sobon, L.J., "Experimental Verification of Analytically Determined Weld Overlay Residual Stress Distributions", Transactions of the 8th International Conference on structural Mechanics in Reactor Technology (SMiRT), Paper D2/1, Brussels, Belgium, August 19-23, 1985.

6. NUTECH Document No. COM-52-200, "Design Report for Recirculation System Weld overlay Repairs at Dresden Nuclear Power Plant Unit 2, Revision 1, July 1983.

7. NUTECH Document No. CEC-09-049, "Evaluation and Disposition of Flaws at Dresden Nuclear Power Plant Unit 2", Revision o, February 1985.

8. NUTECH Document No. CEC-79-204, "Evaluation and Disposition of Flaws at Dresden Nuclear Power Plant Unit 2 (Fall 1986 outage)", Revision 1, March 1987.

9. EPRI Document NP-2423-LO, "Stress Corrosion Cracking of Type-304 Stainless Steel in High-Purity Water: A Compilation of Crack Growth Rates", June 1982.

10. ASME Boiler and Pressure Vessel Code (BPVC) Section XI, 1986 Edition with Addenda through 1989.

11. NUTECH Document COM-76-001, "Weld overlay Design Criteria for Axial Cracks", Revision o, March 1984.

XCE-53-101 5.1 Revision O

NU TECH ENBNEER5

..

•


Appendix A

COKP.ARISOH AND DBSCRIPl'IOH OF FLAWED WRTrmmtTS

A.O

NU TECH ENEINEER5

• PIPE SIZE: 8" WELD MO.: 8-16

COllFIGOllTIOK: PIPE

PIPE WALL THK. (tp): 0.50" * 0.50" * * Assumed

REllAIIIlfG OOTAGE LEIGTJI DEPl'Jl LIGAJIEIT ORIEIT. I.OCATIOI CX>IUIEllT

1990 -------HO REro!rABLE IHDICATIOJfS OBSERVElr--------,


A.1

"STAIDARD" OVERLAY TO BE APPLIED

NU TECH ENEINEER5

•

•

PIPE SIZE: 8"

----------

OUTAGE LEJIGTB -------- --------1988 0.3511

1990


COlfFIGUR!TIOlf:

PIPE WALL TBK. (tp):

REll!OOllG DEPTH LIGAilm

-------- ------SU N/A

UPSTiEAJI DllSTWJI ------- ----------

ELD PIPE

0.58311 0.5211

ORIEllT. LOCATIOI --- --------

AXIAL PIPE

A.2

WELD HO.: 8-K14

------------

COllKEllT

------------------------------------"LEAKAGE BAllIER" OVERLAY APPLIED

"STAllDAiD" OVERLAY TO BE APPLIED

NU TECH ENONEER5

•

•

PIPE SIZE: 12" WELD NO.: PDl-015

UPSTWJI DKSTRE!X

COHFIGURATIOll: ELBOW PIPE

PIPE WALL THK. (tp): 0.688" * 0.688" * * AssUJed

REJIAmBG OOT!GE LEIGTll DEPlB LIG!KElft' ORIEMT. LOCATIOI COllXEIT

1990 ------NO REPORTABLE IllDICATIOIS OBSER~------ "ST!llDllD9 OVERLAY TO BE APPLIED


A.3

NU TECH ENlllNEER5

• PIPE SIZE: 12"

OU'l'AGE LENGTH

1988 0.3" llAX.

1990


UPSTWJI DlfSTWJI

t'OHFIGURATIOI: PIPE ELBOW

PIPE WALL THK. (tp): 0.62" 0.665"

REJIAIBIIG DEPI'B LIGAX!llT OiIEllT. LOCATION

--------- ------- --------- -----33t MAX. 'ti/A AII!L PIPE

(2 TOTAL)

A.4

WELD MO.: PDl-016

"LEAKAGE BARRIER" OVERLAY APPLIED

"STAIIDARD" OVERLAY TO BE APPLIED

NUTECH· ENlllNEER5

PIPE SIZE:

OUTAGE LEHGTH ------- ---------

1988 0.3" MAX.

1990


UPSTREAJI DHSTREAJI

COMFIGUIATIO!f: REDOCEi PIPE

PIPE WALL TDK. (tp): 1.308" 0.625"

REXAIBIIG DEPTH LIGAJID'f ORIEllT. IDCATIOI -------- ------ --------- --------

87' w. I/A AXIAL PIPE (3 TOTAL)

A.5

l4ELD NO.: PD1/L2

------------------------------------"LEAXAGE BAllIEi8 OVERLAY APPLIED

"STAIDARD" OVERLAY TO BE APPLIED

NU TECH ENBNEER5

• PIPE SIZE: 12"

OUTAGE LElfGTJI

--------- --------1983 o.5•

0.25"

1984 ·0.5" 0.25•

1986 0.2" SPOT

1988 0.7011 w. . (16 TOTAL)

0.40" w. (10 roTAL)

1990


UPSTREAJI DHSTREAJI

COHPIGURATIOlf: ELBOW PIPE

PIPE WALL TBK. (tp): 0.69511 0.63511

REJllllIIG DEPfll LIGWIT ORIEi!. WCATIOI

--------- --------- ------ -------191 ff /A eIRC. ELBOW 17' M/A eIRC. ELBOW

17t H/A CIRC. ELBOW 17t I/A enc. ELBOW

151 ff /A · enc.· ELD lU K/A eIRC. ELBOW

ff /A 0.28" m. AXIAL OOTllSID~

ff /A 0.25• m. "IITDBIAD fmll SIDES LACK OP FUSI OP

A.6

WELD KO.: PDS-020

COllKEJIT

----------------------------------

"STABDllD" OVEILAY APPLIED

l«>I FABRICll'IOI DEFECTS TO BE REPAIRED AID CAPPIIG LAYEi APPLIED

NU TECH ENlllNEER5

• PIPE SIZE: 12" WELD HO.: PD5-D21

UPSTREAX DKSTREAX

COlfFIGURATIOlf: PIPE

PIPE WALL THK. (tp): 0.61" 0.685"

REJIAIJfIBG OUTAGE LEIG'l'll DEPTH LIGAJIEllT ORIEllT. I.OCATIOI COJUIEBT

--------- --------- ------ ---------- ----- ------- ------------------------------------1988 0.35" MAX. 43t MAX. K/A AXIAL PIPE "LEAKAGE BAllIEi" OVERLAY APPLIED

( 4 TOTAL)

0.25" 17t M/A AXIAL Eta

1990 "STllDARD" OVEiLAY TO BE APPLIED

XCE-53-101 A.7 Revision o NU TECH

. ENEINEER5 (

•

•

PIPE SIZE: 12"

OUTAGE LDGTB

198_8 0.45"

1990


OPSTREAX

COHFIGURATIOlf: ELOOW PIPE

PIPE WALL TBK. (tp): · 0.68" 0.615"

REKAilfIIG DEPT! LIG!KERT ORIEIT. LOCATIOI

------- --------- ----- ---------70t H/A AXIAL PIPE

( 1 TOTAL)

A.8

lmD MO.: PD6-Dl8

"LEAKAGE B!ll!Ei" OVDLA Y APPLIED

"STAJIDARD" OVERLAY TO BE APPLIED

NUTECH ENEINEER5

•

PIPE SIZE: 12" WELD HO.: PD6-D19

OISTWJI

COKFIGURATIOlf: PIPE

PIPE WALL THK. (tp): 0.688" * 0.688" * * AssUlled

REJIAIIIIG OUTAGE LEIGT! DEPT! LIGAJIEllT ORIEi'?. U>CATIOI COllXEllT

---------- ---------- ---------- ---------- ---------- ------------ ------------------------------------1990 ----------NO REPOR'l'ABLE IBDICATIOIS O~EiVEI>--··-· -


A.9

"STAHDARD• OVERLAY TO BE APPLIED

NU TECH ENlllNEER5

•

•

PIPE SIZE: 12"

OUTAGE LEIGTJI -------- ----------

1988 0.35"

0.4"

1990


DHSTUAJI

COllFIGORA1'IOI: ELBOW PIPE

PIPE WALL TBK. (tp): 0.715" 0.625"

REKAIIIlJG DEP?H LIGAXEIT ORIEllT. LOCATIOI

---------- -------- -------- --------77t lf /A AXIAL PIPE

34' lf /A AXIAL ELBOW

A.10

WELD HO.: PDS-09

COJIXEl'l'

------------------------------------"LEAKAGE BllllEI" OVERLAY APPLIED

"STAIDilD" OVERLAY TO BE APPLIED

NU TECH ENDNEER5

•

PIPE SIZE: 12" WELD KO.: PD8·D10

---------- ------------

OUTAGE LEKGTB -------- ---------

1988 0.5" MAX.

0.4" MAX.

1990


UPSTREAM DJfSTREAK

COHFIGURATIOM: PIPE ELBOW

PIPE WALL THK. (tp): 0.615" 0.715"

REJlllmG DEPf!I LIGAJIEI'? ORIEi?. IDCATIOI.

------- ---- ------ ----76\ MAI. M/A AXIAL PIPE

(5 TOTAL)

7UW. K/A AXIAL (3 TOTAL)

A.11

COXllEllT

------------------------------------"LllKAGE BARRIER" OVERLAY APPLIED

"STAllDARD" OVERLAY 'ro BE APPLIED

NU TECH ENEINEER5

•

•

PIPE SIZE: 12"

OUTAGE LENGTH

1988 0.25" KAX.

1990


UPSTiEAX DllSTWX

COHFIGUUTIOI: ELOOW PIPE

PIPE WALL TBK. (tp): 0.73" 0.63"

REJIAIIIXG DEPl'B LIGAJIEllT ORIEll'f. U>CATIOI

---------- -------- ------ -----80l KAX. K/A AXIAL· PIP!

( 4 TOTAL)

A.12

WELD lfO.: PD9-D7

COllll!IT ----------~---------------------"LEAXAGE BAUIEI" OVEILAY APPLIED

"STAllDAiD" OV!ILAY ro B! APPLIED

NU TECH ENEINEER5

PIPE SIZE: 22"

OOTAGE LElf GTB

--------- --------1988 i.0811 nx.

1990


UPSTREAJI DHSTR!AX

CONFIGUltATIO!: PIPE EKD CAP

PIPE WALL m:. (tp): 1.195" 1.2051

REJWlfIIG DEPTH LIGAJIEIT ORIEBT. I.OCATIOI ---- ------- ------- -------

87' JW. M/1 AXIAL EllD CAP ( 8 TOTAL)

A.13

lraLD HO.: LS-03

COJDIEll'?

"LllKAGE BAWEl1 OVEILlY APPLIED

"STlllDAID" OVEILlY TO BE APPLIED

NU TECH ENEINEER5

PIPE SIZE: 8"

OOT!GE LEJfGTH -------- --------

1988 2" 0.2~

1990


UPSTWJI DNSTWJI

COMFIGURATIOlf: ELBOW PIPE

PIPE WALL 1'BK. (tp): 0.6011 0.515"

REIU.IlfIIJG ·DEPl'JI LIG!Km ORIDT. LOC!TIOI

--------- ------- ----- -35l lf/A CIRC. PIPE 45l lf /A !XllL !LP

A.14

WELD HO.: 8-Kl2

com:rr -----------~~~----------------"STAJID!iD" OVERLAY APPLIED, BOT KOT VOLIJXETIICALLY EXAJIIlfED

"STAHDARD" OVERLAY mCDESS TO BE VEIIPIED

NU TECH ENEINEERS

•

•

PIPE SIZE: 8" WELD lfO.: 8-Kl6

---------- ------------

OUTAGE LElfGTB -------- --------1988 l. 75"

2"'

1990


COllFIGUiATIOI:

PIPE WALL TBK. (tp):

REJIAIJfIJfG DEPTH LIGAJIEllT

--------- ---------44\ 'N/! 52\ 'tf/!

UPSTRW DRSTRW

------------PIPE

\

0.55" 0.523"

ORIEllT. U>CATIOlf ---- -------

CiiC. EID enc. PIPE

A.15

COl!Ell'l' ------------------------------------"ST!JIDARD" OVDL!Y APPLIED, BOT lfOT VOLOJIETIIC!LLY EX!JIIHED

"ST!JIDAiD" OVDL!Y TBICKllF.SS ro BE VERIFIED

NU TECH ENlllNEER5

PIPE SIZE: 28 11

· OOTAGE LEIGTI ---------- -----1990 6"

0.7511 x.u.

1.5"


WELD NO.: 202-5A/PD1B

UPSTWJI DISTREAI

allfFIGURATIOlf: PIPE VALVE

PIPE WALL TBK. (tp): 1.3611 1.2311

DEP?!I

26, . 40, x.u. (2 ro'f!L)

20a

REJIAIIIlf(j

LIGAJIEllT OllEIT. . LOC.U'IOI a>m:IT

M/A enc. t PIPE "ST!IDARD" OVDLAY TO BE APPLIED I/A AXIAL PIPE

K/A CIIC. PIP!

* AXIAL IIDICATIOIS IDF.ITIFIED BEWW ARE ASSOCillED lfITll enc. IIDICAfIOI

A.16

NU TECH ENlllNEER5

•

PIPE SIZE: 28" WELD lfO.: PSlA-05

UPSTW! DlfSTWJI

COHFIGURATIOI: ELBOW PIPE

PIPE WALL TBK. (tp): 1.25" 1.23"

lllWmG OUTAGE LENG'l'll DEPI'JI LIGAJIEllT Ol!IEllT. U>Cil'IOI COIKEllT

---------- ---------- ---------- ---------- ---------- ------------ -------------------------~---------1990 O. 70" 14' I/A AXIAL ELD "LEWGE BAWEI" OVERLAY llEETIIG

llUIEG-0313 "DESIGI" OVERLAY CRITEili TO BB APPLIED


A.17

NU TECH ENHNEER5 ·

• PIPE SIZE: 28"

OUTAGE LElfGTB ---- --------1990 3.5"

2.5" 1.0"


UPSTIE!JI DBSTiEAJI

COJfFIGUW'IOK: PIPE

PIPE WALL THK. (tp): 1.23" H/A *

REKAilfIIG DEPl'll LIGmllT ORIEJl'f. LOCATIOI ------- ----- ---------- -------

20t MAI. · R/A CIRC. PIPE lOt XAX. M/A CIRC. PIPE lOt 11!1. H/A CIRC. PIPE

A.18

WELD NO.: PS2A/202-1B

* DOE TO TRAKSITIOM

COJIJIDT

------------------------------------"mIOOAL STllSS UIPIOVEllEMT" OVERLAY TO BE APPLIED

NU TECH ENBNEERS

•

PIPE SIZE: 16"

OUTAGE LEIJGTB ·---------- ---------

1990 15.75"

'3,5n


OPSTWll DMSTR!AJI

CONFIGURATION: TEE ELOOW

PIPE WALL THK. (tp): 0.84" 0.88"

REJLUmG DEPTH LIGAJIEIT OIIEIT. lOCll'IOI -------- ------- ---- -------34t * H/A CIRC. ELD

17' If/A enc. ELOOW

* ALSO CX>l'l'AIIED 2 PII HOLE LllK!RS

A.19

WELD HO.: 16-8

COllJIEllT

------------------------------------"STAIDllD" OVERLAY ro BE APPLIED

NUTECH ENEINEER5

•


Appendix B

WRJ.D OVERLAY DESIGN DRAWINGS

s.o NU TECH

ENEINEER5

•

••

A I B

~.~ 1· l Pipe Elbow

WELD NUMBER

8-16,

0

A

REV. PREP. BY/

DATE

JOB NO:

COE-45 FILE NO:

COE045.0201


I

~WELD

WELD OVERLAY REPAIR DETAILS

DESIGN DIMENSIONS FLAW CHARACTERIZATION .,._.--..---.---~

t A B

U.S. PATINT No. C,UC,t02

COMMENTS

0.22' 2.0" 2.0" '.'Standard" Overlay Desiqn

PLANT:

Dresden Unit 2

OWG. NO:

COE-45-201

B.1

Issued for Construction

SHT.-1 -

OF l

REV.

0

FMl(T86.01 ·02

NUTECH ENONEER5

•

•

ELBOW

. WELD OVERLAY REPAIR DETAILS

PIPE

• Includes low ferrite content first layer tnickneu of 0.1 a•.

OVERLAY NUMBER DESIGN DIMENSIONS A B A.AW CHARACTERIZATION

RWCU SK-14 0.42" 2.0· 2.0· •

A.OW

U.S. PATENT NO. 4,624,402

COMMENTS

"STANDARD· OVERLAY DESIGN

~ ~-..m.s ISSUEOFOA lfl/6/fO . IO/S/~o CONSTRJCTION

A & 0 ORIGINAL SIGNATURES I COMMENTS IN PROJECT FILE

REV.

JOB NO:

PREP. BY I CATI:

COE-45

FILE NO:

COE045.0202

CHI<. BY/ OATI:

P.E. APPA. I E.M. APPA. I P.M. APPA. I OATI: OATI: CATI:

PLANT:

DRESDEN UNIT 2

OWG.NO:

COE-45·202

DESCRIPTION

SHT. _!__

OF 1

REV.

1

I

• INH·090.02M


8.2

NU TECH ENEINEER5

•

•

ELBOW

~


PIPE

THIS REPAIR SHALL COMPLY WITH THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

OVERLAY NUMBER

PD1·015

0

REV.

JOB NO:

COE-45

FILE NO:

COE04S.0203


DESIGN DIMENSIONS A B FLAW CHARACTERIZATION

100%x3609 0.24• 2.25· 2.25·

PLANT:

DRESDEN UNIT 2

OWG.NO:

COE-45·203

B. 3


COMMENTS

"STANDARCY OVERLAY DESIGN

ISSUED FOR CONSlRUCTION

DESCRIPTION

REV.

SHT. _1_

Cf= 1 0

NU TECH ENEINEER5

•

•

ELBOW

~

WELP OVERLAY REPAIR DETAILS

PIPE

THIS REPAIR SHALL COMPLY WllH lHE TECHNICAL REOUIREMENlS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

OVERLAY NUMBER

PD1-018

0

REV.

JOB NO:

PREP. BY/ DATE

COE-45

FILE NO:

COE045.0204


FLAW CHARACTERIZATION

100%x3SO-

CHK. BY I P.E. AP R. I OA'TE DATE

PLANT:

DRESDEN UNIT 2

DWG.NO:

COE-45·2°'

DESIGN DIMENSIONS A B

024· 2.2s· 2.25·

E.M. APPR. / DATE

B.4

P.M. APPR./ DATE

U.S. PATENT NO. 4,624.402

COMMENTS

"STANDAR09 OVERLAY DESIGN

ISSUED FOR CONS'TRUCTION

DESCRIPTION

REV.

SHT. _1_

~ 1 0

NU TECH ENDNEER5

PIPE

NOTES:

q_ WELD


REDUCER

1. nilS REPAIR SHAU COMPLY Willi niE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

2. DIMENSION -a• NEED NOT EXCEED 2.259.

OVERLAY NUMBER

PD1/l2

0

REV. PREP. BY/

DATE

JOB NO:

COE-45

FILE NO:

COE045.0205

XCE"."'53-101 Revision o

A.AW CHARACTERIZATION

PLANT:

DRESDEN UNIT 2

DWG.NO:

COE..-S-205

DESIGN DIMENSIONS A B

0.29· 2.25· (2)

8.5


"STANDARD• OVERLAY DESIGN

ISSUED FOR CONSTRUCTION

DESCRIPTION

REV.

SHT. _1_

a= 1 0

NUTECH ENDNEER5

ELBOW

NOTES:


PIPE

U.S. PATENT NO. 4.624.402

/ .,...._=,--.,.~ 1 1. This· overlay contains UT indications as shown on GE Indication

Resolution Sheet No. 0-630, dated 2/2/89. IGSCC indications #3,· 10, 11, 12 & 13 shall be repaired and then covered by one layer of machine GTAW weld. '----- l .. • -· • __ _.....__,. ______________ __..._--"-__ _

Tl·llS REPAIR SHALL COMPLY WITH THE TCCHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION) ~~

~ a 1>.: i2-001s'JH1 <

-t='" GR.. D - 61 45 ~ WI I).: llJD)/SWl-95609 ~ ~

OVERLAY NUMBER DESIGN DIMENSIONS A B Fl.AW CHARACTCRIZATION COMMENTS

POS-020 100% x 380" -STANDARD· OVERLAY DESIGN

0

REV. PREP.BY/

DATE

JOB NO:

COE-45

FILE NO:

COE045.0208


Pt.ANT:

ORESOEN UNIT 2

OWG.NO:

COE-45·208

B.6

ISSUED FOR CONSTRJCTION

DESCRIPTION

REV.

SHT. _L_

a 1 0 --

NUTECH ENBNEER5

ELBOW

~


PIPE

THIS REPAIR SHALL COMPLY wmt THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

OVERLAY NUMBER

PDS-021

0

REV.

JOB NO:

COE-45

ALE NO:

COE045.0207



100%x3609 0.24• 2.25• 2.25·

PLANT:

DRESDEN UNrT 2

DWG.NO:

COE-45-207

B.7


COMMENTS

"STANDARD" OVERLAY DESIGN

ISSUED FOR CONSlRUCTION

DESCRIPTION

REV.

SHT. _1_

CE 1 0

NUTECH ENEINEER5

ELBOW

~


PIPE

THIS REPAIR SHAU COMPlY WITH THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

OVERLAY NUMBER

PD8-018

0 aiqffo/10

REV. PREP. BY/

DATE

JOB NO:

COE-45

FILE NO:

COE045.0208


DESIGN DIMENSIONS A B Fl.AW CHARACTERIZA T10N

0.24• 2.259 2.25·

PLANT:

DRESDEN UNrT 2

DWG.NO:

COE-45-208

B.8


COMMENTS



DESCRIPTION

~EV.

SKT. _1_

OF 1 0 --

NU TECH ENEINEERS

• ELBOW

HO.IE;


PIPE

THIS REPAIR SHAU. COMPl Y wmt THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-8U02 (CURRENT REVISION).

OVERLAY NUMBER

PD6-D19

0

REV.

JOB NO:

COE-45

FILE NO:

COE045.0209


FLAW CHARACTERIZATION DESIGN DIMENSIONS

A B

100'%x380- 0.24· 2.25· 22s·

PLANT:

DRESDEN UNIT 2

DWG.NO:

COE-45-209

B.9


COMMENTS



DESCRIPTI:>N

REV.

SHT. _1_

CF 1 0

NUTECH ENEINEER5

• ELBOW

~


PIPE

THIS REPAIR SHALL COMPLY WrTH THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

DESIGN DIMENSIONS A B OVERLAY NUMBER FLAW CHARACTERIZATION

PDS-09 100'lh3809 o.259 2.25· 2.2s·

0

REV.

JOB NO: PLANT:

COE-45 DRESDEN UNrT 2

ALENO: OWG.NO:

COE045.0211 COE-45-211

• XCE-53-101 Revision o

B.10

0


COMMENTS

"STANDARD" OVERlA Y DESIGN


DESCRIPTION

REV.

SHT. _1_

a: 1 0 --

NUTECH ENEINEER5

• ELBOW

~

<t_ WELD

WELD OVERLAY REPAIR PETAILS

PIPE

THIS REPAIR SHALL COMPLY Wmi THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

OVERLAY NUMBER

PDS-010

0

REV. PREP. BY/

DATE

JOB NO:

COE-45

FILE NO:

COE045.0212



0.27" 2.25• 2.2s·

CHK. DATE

Pt.ANT:

DRESDEN UNrT 2

OWG.NO:

COE-45·212

B.11


COMMENlS



DESCRIPTION

REV.

SHT. _1_

~ 1 a --

NU TECH ENONEER5

• ELBOW

~

<t_ WELD

WELD OVERLAY REPAIR PETAILS

PIPE


OVERLAY NUMBER

PD9-D7

0

REV.

JOB NO:

PREP.BY/ DATI:

COE-45

FILE NO:

COE045.0213



100%x 360" o.2s· 2.25• 2.2s·

Pl.ANT:

DRESDEN UNJT 2

OWG.NO:

COE-45-213

B.12


COMMENTS



DESCRIPTION

REV.

SHT. ___L_

a= 1 0

NU TECH ENlllNEERS

END CAP

WIE;

Cf. WELD


PIPE

THIS REPAIR SHALL COMPLY wmt THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT S~ (CURRENT REVISION).

OVERLAY NUMBER

LS-D3

0

REV. PREP. BY/

DATE-

JOB NO:

COE-45

FILE NO:

COE04S.0214


DESIGN DIMENSIONS A B FlAW CHARACTERIZATION

100%x360- . 0.41· 2.0· 3.s·

Pl.ANT:

DRESDEN UNIT 2

OWG.NO:

COE-45-214

B.13


COMMENTS



DESCRIPTION

REV.

SHT. _1_

OF 1 0

NU TECH £NEINEER5

•

ELBOW

~

<{_WELD


PIPE

THIS REPAIR SHALL COMPl Y WITH THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT Sl5-88-002 (CURRENT REVISION).

OVERL.A Y NUMBER

8-K12

0

JOB NO:

COE-45

FILE NO:

COE045.0215


DESIGN DIMENSIONS A B Fl.AW CHARAClERIZATlON

100% x3609 0.23· 2" 2"

PLANT:

DRESDEN UNrT 2

DWG.NO:

COE-45·215

8.14


COMMENTS



DESCRIPTION

REV.

SHT._1_

CE 1 0

NU TECH ENONEERS

•

ELBOW

~


PIPE


OVERLAY NUMBER

8-K16

0

REV.

JOB NO:

COE-45

FILE NO:

COE045.0218

XCE-5.3-101 Revision o

FLAW CHARACTERIZATION DESIGN DIMENSIONS

A 8

0.20·

PLANT:

DRESDEN UNrT 2

OWG.NO:

COE-45-218

B.15


COMMENTS



DESCRIPTION

REV.

SHT._1_

cr: 1 0

NU TECH EN(jlNEERS

• VALVE

~


PIPE

( 1) TOE OF OVERLAY TO BLEND SMOOTHLY INTO VAL. VE TRANSITION (2) THIS REPAIR SHAU COMPLY WITH THE TECHNICAL REQUIREMENTS

. CONTAINED IN DOCUMENT SIS-88-002 (CURRENT REVISION).

OVERLAY NUMBER

202·5A/PD1 B

0

REV.

JOB NO:

COE-45

FILE NO:

COE045.0222


FLAW CHARACTERIZATION

100%x380-

PLANT:

DRESDEN UNT2

OWG.NO:

COE-'5-222

DESIGN DIMENSIONS A .

4.s·

B.16


OOMMENTS

"STANDAR08 OVERLAY DESIGN

ISSUED FOR CONSTRJCTION

DESCRIPTION

REV.

SHT._1_

~ 1 0 --

NUTECH ENBNEER5

,,

PS1A•DI

0

~!LINO:

coaoaom


ILIOW

Cl I •Ulll'I ..... ca•••

1111•1

B.17

.••••..••.......

••••••••••••••••

----°' --

._IV.

0

NU TECH ENHNEER5

\.:1 1.o.I I I(,'),

(2J

~· di neH o the over •? •ball ba at l.Nst layua ith a 111i.nimum thic:kn• ot o.ur attu tinal. 1\1.rt'ac• cand~tionin9. '1'he ovitS'hy thLaM••• 1heU. be 111H1ured !: · .. •'lll't~c• that baa pa•Md ~If in•P11~Lon. AdcU.ticnal delta terriu meaaur .. nt1 •hall be taken a.ftu the t1r1c layer of ove.rla mul i• applied &ad attezo any .. eavacion8 K• tilled. Th•~• mea•w:-.ita are tor: r•tuac• only.

OVIMAYNUMIM

P82A/202•1 I J 4\&&.lol""' ~-~.,..·-, ~ •,. • e> er~ zo•1., Maie \..8H•"'°' I, 1.• 11

m H•UNIT'I

o....,...~ ..... ~ ..... ... '~ IMrc-~ ..... )

PUHO: DW!m.HDI 0

• oo .....


CICI ....

B.18

NUTECH ENEINEER5

.l;-J ·~ ··-.., .. '" ... ~v~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~--,

i~

~ "

0

TEE

~

<{,WELD


( 1) TOE OF OVERLAY TO BLEND SMOOTlil Y INTO TEE.ftUN PIPE TRANSITION.

ELBOW

(2) THIS REPAIR SHALL COMPLY WITH THE TECHNICAL REQUIREMENTS CONTAINED IN DOCUMENT Sl5-a8-002 (CURRENT REVISION).

OVERLAY NUMBER A.AW CHARAClERIZATION DESIGN DIMENSIONS

A

16-8

CHI<. BY/ DATE

100%x 3809 0.31· 2.s·

JOB NO:. .PLANT:

COE-45

FILE NO:

COE045. 0225


DRESDEN UNIT 2

OWG.NO:

COE-45-225

B.19


ECN NO.: 12-00224M

WR NO.: NMOD/SWR-96349

COMMENTS



DESCRIPTION

REV.

SHT._1_

CE 1 0

NU TECH ENlllNEER5

Rev 0 to, 'Design & Evaluation Criteria for Weld Overlay ...pipe wall thickness through the...

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Transcript of Rev 0 to, 'Design & Evaluation Criteria for Weld Overlay ...pipe wall thickness through the...