ML20141A991
| ML20141A991 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 03/07/1997 |
| From: | NORTHERN STATES POWER CO. |
| To: | |
| Shared Package | |
| ML20140J498 | List: |
| References | |
| 97-0136, 97-0136-R01, 97-136, 97-136-R1, NUDOCS 9705150089 | |
| Download: ML20141A991 (70) | |
Text
{{#Wiki_filter:- . . _ _ __ _. _ _ .- . _ . _ _ . .- - - . _ - _ - - -- - - - . i 4 ( l Northern States Power Company Prairie Island Unit 2 Report # 97-0136R1 Operations & Maintenance Supt 45' ULTRASONIC EXAMINATION source Doc =B 2. 40 Materials & Special Processes REPORT (3rd 10yr) S/N 2618 System ISO Item Item Description 1 Steam Generator 22 2-ISI- 37B W-A Tube Sheet to Head Material Size / Length Thick /Dia Temp Surface Condition i SA216 WCC / SA508 CL2 135" 5.160 7 5" F BLENDED Procedure W R Number ISI Contractor Exam Date ISI-UT-3 Rev 7 Field Change N/A 9612227 03/07/97 Calibration Beam Angle Temp Gauge S/N Exam Start 0
- hours 1
] Report Nmbr TWT-002 45' (Nominal) NSP-049 Exam End 0
- hours l Reporting Level Cal Block 25A Ref Sensitivity 20/7 dB j lEvaluationLevel 20% DAC 20% DAC Ref Std LMT-109 Scan Sensitivity 20/16 dB
- RESULTS NAD = No Apparent Discontinuities; L = Linear; S = Spot; M = Multiple i y GEO = Geometry Visual = Non-Section XI Visual Examination i
- Scan Res- Indication Sweep Metal Surf Cire Axial Indication Amp j Nmbr ults Type Loc'n Path Dist Location Location Length %DAC i
i T I, 1 J F i # LIMITATIONS: Refer to RPT No. 97-0136. l j 1 1 l l l REMARKS. Refer Aeuitw $_oy to8RPT A a1No. & I797-0136. M ort See attached Flaw Evaluation. This report will be issI ! l TM TM P'"" fo 4.*/- .na y$c/ 9&97 SKETCH PERSONNEL j ('lf9-) !. Examiner: j . N/A Level 3 Examiner: N/A Level
- Contractor i '
Review: / / i gj ~Da t e eview: [$fMhts/d 1
}Date/l/l?
view: ( ]/[k'7 j
' - t Date i Pace 1 of 70 9705150089 970506 PDR ADOCK 05000282 P pg 9
9
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i I ISI Flaw Disptsiti2n Worksheet
- 1. IS! Report Number i er2 4P-0lHf. Flaw Number a / 3. Item Nurnber 6 J- @ 14.[ Ital Number of Pages j i
.151 Interval [K OK Reviewer /D 8 5. Code Edition and Addenda $ OK Reviewer X' ;
O second interval Ethird interval O pr rvice O 80 W81 0 86 no addenda B 89 no adder 41a O other '
- 6. Acceptance Standard @ OK Revi rer E-3ir'1WB451 O' WB4511 O IWB4512 0 !WB-3514 O IWB4515 O IWB-3516 O IWB45t8 0 IWB452 O lWB4523 l O IWC451 O IWC4511 O IWC4512 O IWC4513 O IWC-3514 O IWC-3515
- 7. Calculations R OK Reviewer II .
vu V N[ dd $dCr[kCbgc.f - [::-[,<[$ g( c (), ,j['/o
% Ty : Salcar.fa u flanu %, :- c n o ' J= o.m9 "
L- C'" - O. 2/ M %d -fo p. 3/ l k f. 4'O 1 h Y bM. $@' A Cl tit () ,' A C. 2 S~Ic
't g,y
= Oc 04U bund -b 4. 'l %
4 Trrnu TJe. Tia e - 3 c lo - I : ;
- 0. W U N If % )/ . kf-- :- ,_ g,f ,) 7,7 i $e J f/*
- 6. 3C p. 4- Y 1
$ 0. 3r s,( y MupMM g= o,3 ( , p3 , 4, c 2 i 3 a h
- 8. Results 8 OK Reviewer y
- c/l = 0' I l:
! calculated c/t %= 4 e i% f M. f% Code allowab! c/t %= laminar flaw surface area: (0.75
- t
- w) = Nd
- 9. Table used for analysis S OK Reviewer E.
"D 1WB4510-2 O IWB45104 O IWB45111 O lWB4511-2 O IWB45121 ff IWB4510-1 O IWB-3514 4 O IWB-3514-6
- O IWB-35l2 2 O IWB-35141 O IWB4514-2 O IWB45144 O IWB4515-1 O IWB4516-1 O IWB4516-2 O IWB45181 O IWB-3518-2 O IWC4510-2 O IWC45104 O IWC45112 O IWC4512-2 O IWC45101 O IWC4513-1 O IWC4511 f /
- 10. Was linear mterpolation used? # yes O no If no, why?
- 11. Was IWA4200 Significant Digits For Limiting Va!ues followed? Id yes O nc $ OK , Reviewer s. If n .. hy?
- 12. The correct Code Edition and Addenda was available and used. JFyes Prep r 'TY7 $0Kliliewer ,
i
.13. Statement of acceptability or rejectabihty with basis q OK Reviewer ,M _ -[ 00 Accept.
gReject. f O (o/t) Code a lowabl E(0/f)halculated (a/OCode DD OEM tlaw ev uatiq[n wabl (0/Ocalculated handbook (see attached analysis)
- 17. Approved by and date is. Prepared by and date 1 ii.nsing
- review by d dat faQ 7 a Ha n fww Th r ,
yo3
Surface / Embedded Flaw Demarkation Une 7 0.13 m ~_, Embedded Flaw
-- Configuration, i i _pABOVE THIS LINE ARE
' NOT ALLOWABLE 0.12 5
0.11 , 10, 20, 30 yrs. Fr
~.
._=- _ - ;g:
- '- x, 0.09 ._
q _.. ,__, b .08 0 c' =_;a: = 3 _ .
^ f urface :
_q _CU Lt- 0.07 g pi,,, in mi, _ M 5 Region Must be ! ' il = - O _.,___.2i-
.C ' ' = ' ' ~
g 0.06 'EConaldered ESurface g E Flaws , l CA[1t.hqo;g 0.05 I 0.04
] ALL EMBEDDED FLAWS l
( N THIS SIDE OF l DEMARKATION UNE) 0.03 p ., ARE ACCEPTABLE PER N. 7 , CRITERIA 0F IWB 3600 05 AS LONG AS 2a!!so.25 0.02 ' ' -
}
0.01 .__ 0'- 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 k 0.225 0.25 Distance from Surface (6/t) cT/4:.lM7 O a 4 S : .Wlp"4 ,%89 = q ,pg y u
.f : 6.Ifop" S -:, , qq o g ., . t. $-(4
Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel He Prairie Island Units 1 and 2 X Longitudinal Flaw Surface Flaw X Inside Surface Embedded Flaw X Circumferential Flaw Outside Surface _.X_ _X_ TST lt.Ho od h %-$ % lF% f \ ,0.k ,L y %QG A WA A2-7 1299w.wpf:1b/011995 Page 3 Gr) hf ll f[ f w, hoec,m
}Y}
^
i l y ,
- !ISI Flaw Sizing Worksheeti '
- 2. Flaw Number 3. Item Number l j 1. ISI Report NDE 2 9'1-ot% /, .
Ts z. (O :
't. ISIinterval ElOK Reviewer 13 3. Code Edition and Addenda EYOK Reviewer {S 6. Method 5 UT O RT C 7nd interval $3rd interval O preservice O 80 W81 0 86 no addenda 15 89 no addenda O ether O PT O MT
, 7.FLwSketch (/OK Reviewer (i p gg f, p 4 j Front View p 0
t. o.5011 S,19 - 4 le e. $ a l I [ shy s a F Top View 4 a 3 3m #&O 1
' +-* I 4 W .1 G S9 et Side View 4 1
> I i I
'fTMlltah l
/
i 1 l 8.Ctict.$adoE T4bK Reviewer L$ d Show determination of surface or subsurface l See aMO Show deternunation of type of"a* to une A see a
- 9. !SI-FE 1 Paragraph 7.0." Rounding 4ff Method"was used. %es Prepard:VN.t__ EHTK Reviewer
- . 10. Code Raw Dimensions Q6K Reviewer #d "t " = o,9p "a" = 0. 2s lo "t " = 5,1&o "t " = ,d/A "S" = 0. rf689 "w" = N/A j 11.RawType OrDK Reviewer (d O Surface Planar (LTr/RT) , Hubsurfa.s Pla T) O laminar (ITr/RT) O Linear (PT/MT/RT)
V
- 12. Raw Characternation Figure &CK Reviewer GJ 4 0 IWA-3310-1 O IWA 33301 O IWA 3350-1 O IWA-3380-1 O IWA-3400-1 M IWA-3320-1 O IWA 3340-1 O IWA-3360-1 O IWA-33901 O Flaw 3 O Flaw 4 O Flaw 5
- 13. Flaw Characternatson Figure Number Wlaw I O Flaw 2
- 14. Was IWA-3300 Fisw Characternation followed? % Lyes O no ifno whv? r ,
- 15. De m..a Code Edition and Addenda was available and used. ? - PrepaWJ [VOK Reviewer jU 1
- 16. Prepared by and date 17. Review by and date
[ i Wlk. AJA .x n /t1 E.). E H
-.,--.-~...a.a - . .e -- -n . ..
meen1cee.ono medprueArn oppheable redes. stende ds spacene.none esapreenken Page I/ v Or 70
)
nee,97 o/364) Iemossexumrsmsmroc rsinems ,w=u=it-t -
- msa nel
, Finw Sizing Criculitions Using M:tal Path for Vccal W:Id2 > 2" Fcr curfica gnd cub:urfico tingl3 plinar fl ws critnted in plina n:rm:1 to pre: cura rctaining curfica ASME SECT XI 1989 W/ NO ADDEND INITIA TO VERIFY lSI Report #_97-0136 Evaluation Performed B :. h (2</# Date: 2 7 Flaw # 1 Reviewed By: f.1 .r - , Date: t W- 9 ~1
- Length Length of the flaw "<"is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans.
L and W values are from page __,_ of the UT report. t = 234 ._6_ (L2) - 233 ,_8__ (L1) = _0_._8,_ inches. 'I i Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). l This value is from page _1,_ of the UT report.
"t" = _5,.160 inches Calibration The measured angle in the calibration block was _45,_._0, degrees Calculations using metal path From page of the UT report, Scan # 1
- The flaw exhibited 20% DAC at 5 . 50 and 6 . 21 inches MP. Max amplitude is at 5 . 75 inches ;
j MP with the transducer exit point at 2 . 2 inches (W) from the centerline of the weld and _234.2 1 inches (L) from the O' reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is 4 conservative.) . i l 1) Determine the upper depth of the flaw from the exam surface. j 5 . 50 (metal path at 20% upper)
- COS of the measured angle 0 . 7071 = 3 . 8890 inches l l depth.
- 2) Determine the lower depth of the flaw from the exam surface. ;
4 6 . 21 (metal path at 20% lower)
- COS of the measured angle 0 . 7071 =4 3911 !
inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
5 . 75 (metal path at maximum amplitude point)
- COS of the measured angle _0,._7071 =
_4,. 0658 . inches depth.
- 4) Determine the distance from the center line of the weld to the maximum amplitude point of the flaw.
5 . 75 (metal path at maximum amplitude point) squared = _3_3,_._0625 . (a') 4 . 0658 (depth at maximum arr alitude point) squared = _16 ._5307 (b') i V a' - b2 = _4,. 0659 inches of surface distance to the flaw from the transducer exit point. 2 . 2 (Wmax) _,4,. 0659 (surf dist) = -1. 8659 , inches to the centerline of the weld. 1
- 5) Determine S by picking the smaller of the following, ,
S = _3_._8890_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = 5 . 160 (part 't") _4,_. 3911 (result of 2) = _0_,_._7689 distance between the side opposite exam surface and the lower flaw tip i
- 6) Determine 2d in though wall thickness.
,.,4__. 3911 (from step 2) _3_. 8890 .(from step 1) = _0,_., 5021 . inches.
Determination of surface or subsurface O.4d = (2d / 2)
- 0.4 = _0,_.1004 Compare to S (from step 5)
; if S is less than 0.4d, the flaw is surface. a = 2d + S = __. inches.
! If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = _0,._2510 inches.
! = _0_._8.,,,, (for all > 0.5, t = 2a) t = _5_. ,.160.,. (part thickness) of 'd S = 0 . 7689 Page 6 a = _0,. . 2510_ (surf or Mcircle one)
Decrt# D ~ d O U I flawtrig (for perpendicular scans) Rev 0
internal Correspondence b cate March 5,1997
. From Ad Hoc Evaluation Group Location CSC-2 To File Locauen subject Use of revised ISI calculation worksheets and correction for curvature G Eumno-,- .s o%.t. /www re At/ ' l *s"M ##
- GA m 97-o/c1 fpr. Tec ca.~ AAMo+'m (,W. ,*,* i , /w
. During the 1997 inspection of Steam Generator 22, weld W-A, severalindications # ~ were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 T'fi to perform the flaw evaluation, it was determined by the level 111 that the applicable 3/t[P7-worksheet (Figure 7) could be improved upon for these calculations. As a result, two new worksheets were developed that have the following benefits;
. The determination oflength varies with the direction of scan and is addressed by the new sheets. Length of the flaw ls determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the ;
component. l l Consideration of the effect of the curvature of the vessel on depth determination forindications Report ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 circ 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 10 0.1004 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 circ 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 The information provided above was developed in response to comments from the reviewer of the Isl UT calculation worksheets. The original worksheets did not consider curvature when determining indication depth on the circumferential scans. The corrected values for "s" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. d A .. dA 1hkT -b N- WA Thomas Jones Lvl111 Tin Tran'ISI Program Kingr Jeff Ricker Supt M&SP Page 4 pt ')o Reporti 7'?-c/%41
j ISI Flaw Disposition Worksheet , l.151 Report Number 2. Flaw Niinber 3. Item IVumber Total Wumber of Pages I rra % -Otab. J R 2 6 -2 <f o 14ll _ ;ISIinterval K OK Reviewer a F- /l 5. Code Edition and Addenda % OK Reviewer JF-O second interval A third inte val ))preservice O 80 W81 O 86 no addenda A 89 no adderiffa O other , 6. Acceptance Standard OK Rev rwer ; 4* 1 IWB4 ) / 1 IWB-3511 O IWB4512 O IWB-3514 O IWB-3515 O IWB4516 O IWB-3518 O IWB-3! ;t d IWB4523 O IWC4',lp D IWC-3511 O IWC 3512 O IWC-3513 O IWC-3514 O IWC4515
- 7. Calculations y OK Reviewer ##=
YW LUChed 16 3 00 Gi 3 Wevk.shet: .f = 0, d'o # 4- 6.Of34 l L k,g =. 5,lbo" 3: ), 2.23{ N % h tL An W l 0 2 Of3h - =
=- 0<OT4C R.cynd -fo D. of l
{ 0 . ?lo E tb r w h M tu) d.dL 4 4 ( .1 L 0'068$ - T~ 2
= = 0. 01.23 bund -/v t, :2 %
C~ l b O 1 ~ b t- 'TA,b {t Il\)& - M lo - / .' 1 N 2 l.22:M S
- 19. 4 4y-(
i o,0C 2 11 Y& o.ob3b i p to .2. c Y i sh W vh- , % LL cal ut[A.ded e (c (Ag wkidv i a kn %v D.a 7 2S cx% a rice 9Mle .
=
G. Results p OK Resiewer _ b I c/! = 8. O f ; calcula ,ed c/t %= /, 2 7 Code allowa jle c/t %= .2. 2 7. 4 Y $ < J' CA 4 laminar flaw surface area: (0.M + t + w) = Nd
- 9. l'able used lor analysis @ OK Reviewer ; i O IWB4512-1 b IWB 3510-2 O (WB-35104 O IWB 3511-1 O IWB4511-2 i fil IWB4510-1 O IWB-3514-4 O IWB 3514-6 O IWB-3512-2 3 IWB-3514-1 O IWB4514 2 O IWB-3514-3 O IWB4515-1 O IWB4516-1 O IWB4516-2 O IWB4518-1 O IWB4518-2 O IWC 3510-3 0 WC451 '-l O IWC-35112 O IWC4512 2 O IWC-3510-1 O IWC-3510-2 i O IWC45131 /
- 10. Was linear interpolation used? O yes )$ no if no, why? 06 ce(9h
> K Reviewer h if no, hy?
4
- 11. Was IWA4200 Significant Digits For Umiting Values followed? JD yes O n 12.The correct Code Edition and Addenda was available and used. JQ yes Prepa er [ OK R: viewer /k
- 13. Statement of acceptability or rejectability with basis f5 OK Reviewer ___ p
- jl0 Accept. S (a/OCode allowable 2 (0/Ocalculated O (c/OCode allowabl (0/Ocalculated O Reject.
q O OEM flawevqluati< n llandbook (see attached analysis) 1 Engmee ng review by an' date 17. A proved by and date , 15. Prepared by and date N\ Ah,i A O$ w , -
-_ ..,,. - w. ,.. - ,-
w . ~ ~ ,. - e .a .
-, ~. we wou applica is senavn aedenh.
r a, .nmr r. .-. i. .-,, ~ ~ .-h. .s ~ merkdag are sevreco nd m ucsw&mose wush upptkubir cuales The resnou are severce amiche mehrday mealkr m accendswe ==6 em4 sm c
]
soofear v preardns smd/weshervs mpfkohle rs=Jr andwth spectAnthme entprvredes O Parje 7 g 70
,,,,ag RD lslON 10 hN }
l N MsrJGMstdslFDwRD DOC ist Flaw Disposition workmeet Reveson 0 , nw,., ,, u o~1
-e-
' 1 I
- i r
s
' 4 ISI Flaw' Sizing Worksheet - l
_1.151 Report N 2. Flaw Number 3. Item Number
- 4. ISIInterval Ot)K Reviewer O S. Code Edition and Addenda ETOK Reviewer f/ 6. Method lif LJr O RT
' O 2nd interval brd interval O presernce O 80 W81 0 86 no addenda K 89 no addenda D other O FT O brr
- 7. flaw TOK Reviewer (/ jg7 g 1 A l I . 2 A $ *$
O** ! i { l 0,/213 r' W o, gd l V Top View y I l l 3tm dei j 4
~
Side View l
)
FTm (4J i I
- 8. Calculations pOK Reviewer b Show determination of surface or subsurface b
f88 Show determmation of type of"a" to use
$ & d-
- 9. ISI FE-1 Paragraph 7.0 "Rouruling-Off Method" was used. Ewes PrepareM K Reviewer
- 10. Code Flaw Dtmensions GDK Reviewer f1 "t " = 0.155 "a" = o. o (oW "t " = S',1W "t " = iflA "S" = l. %* 5 5 ', "w" = A) /A
- 11. Flaw Type @GK Reviewer i1 O Surface Planar (tJr/RT) O taminar (UT/RT) O Linear (PT/MT/RT)
_f Qi[ Subsurface PlanV .UT T)
- 13. Flaw Chara. hon Figure (VOK Reviewer if O IWA-3310-1. O IWA-3330-1 ' O IWA-3350-1 O IWA-3380-1 O IWA-3400-1 U IWA 3320-1 O IWA-3340-1 O IWA-3360-1 O IWA 33901
- 13. Haw Charactertzation Figure Number M Flaw 1 O Flaw 2 O Flaw 3 O Flaw 4 O Raw 5
- 14. Was IWA-3300 Flaw Characterization followed? bes O no trno. whv7 . / _.
- 15. De correct Code Edition and Addenda was available and used. W Preparer W OK)K Reviewer AJ
- 16. Prepared by and date 17. Review by and date 1 - *^ '
A
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aa Mnhr .. - - E. J.
-.. - r - -
melocable codes star,Jards meethear.ons endproceares
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meespeernav andprotearwe Page 8 Or 70 Report # D ~ O O N I
-~
arvision u.u4d iuseossex.nsusaswucoc isin.s.nnewe in i-
1
, FI;.w Sizing Criculttions Using M:tal Pcth f:r Vceaal Walds > 2" For surfica and tub:urface tingla plinir flaws criintId in plIns normal to pre 22ura rataining surfics ASME SECT XI1989 WI NO ADDENDM INITIAL TO VERIFY ISI Report #_97-0136 Evaluation Performed BM 6VY Date: 7 Flaw #_2 Reviewed By: T.A DaQ ,% -lMT7 Length Length of the flaw ""is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans.
, L and W values are from page _,_ of the UT report.
!= 123 1(L2) - 122 ._4_,_ (L1) = 0 . 8 inches.
I Thickness l Thickness of the component at the location of the flaw, using UT or nom wall (circle one). This value is from page _.J.,_ of the UT report.
"t" = 5 .160 inches Calibration The measured angle in the calibration block was 45 . O degrees 4
Calculations using metal path From page _ _ of the UT report, Scan # 1 The flaw exhibited 20% DAC at _1. 73_ and _1. 91_ inches MP. Max amplitude is at _1. 82_ inches MP with the transducer exit point at _-1. 3 . inches (W) from the centerline of the weld and _122 . 6_ inches (L) from the O' reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
- 1) Determine the upper depth of the fi w from the exam surface.
- 1. 73_ (metal path at 20% epper)
- COS of the measured angle _0_._7071_ = _1_._2233_
inches depth. ;
- 2) Determine the lower depth of the flaw from the exam surface.
_1_._91_ (metal path at 20% lower)
- COS of the measured angle _0_._7071_ = _1_._3506_
inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point. i
- 1. 82_ (metal path at maximum amplitude point)
- COS of the measured angle _0 _7071_ = '
_1_._2869_ inches depth.
- 4) Determine the distance from the center line of the weld to the maximum amplitude point of the flaw.
1 . 82_ (metal path at maximum amplitude point) squared = _3_._3124_ (a2)
- 1. 2869_ (depth at maximum amplitude point) squared = 1. 6561_ (b2)
V a' - b2 = _1_._2870_ inches of surface distance to the flaw from the transducer exit point.
-1. 3_ (Wmax) _1. 2870_ (surf dist) = _-2_._587_ inches to the centerline of the weld.
- 5) Determine S by picking the sma!Ier of the following; S = 1. 2233_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR S = _5_._160_ (part "t") _1. 3506_ (result of 2) = _3_._8094_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
- 1. 3506_ (from step 2) _1. 2233_ (from step 1) = 0 .1273 inches.
Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0,._0254 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = __. inches. If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = 0 . 0636 inches. t = 0 . 8 (for alt > 0.5, L=.L2a) t= 5 .160 (part thickness) a = A. 0636..(surf orQub_surjcircle one) S = 1. 2233 Page 9 of 70 Reporti 9 ~I
- O A flawtrig (for perpendicular scans) Rev 0
Internal Correspondence b Date March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File tocation l l subject Use of revised ISI calculation worksheets and correction for curvature G Emwn~.sou. /senew re 2y c t esuxe did &N Gum 97-cicit . fet. Tee. co ~ AAMcM' -l[-W- ll# i $/Mc During the 1997 inspection of Steam Generator 22, weld W-A, several indications # N were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 to perform the flaw evaluation, it was determined by the level til that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/tk new worksheeis were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by -
the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the I component.
Consideration of the effect of the curvature of the vessel on depth determination for indications R; port ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 cire 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 cire 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 circ 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Th3 information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. The original worksheets did not consider curvature when determining indication depth on the circumferential scans. Th3 corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications.
'll dw dd 1hkT -b 'I -. CM Thomas Jones Lvl 111 Tin Tran'ISI Program Kingr Jeff Ricker Supt M&SP Page 10 or %
Reporti G")-01%8 )
1
/} ISI Flaw Disp 2siti n Worksheet // !
- 2. Flaw Number 3. Item Number Pr1 4t-ot2j1 1.151 Report Number i 3 8 2. +o 14.[/td Number of Pagcs 3 l 151 Interval % OK Reviewer hi [ 5. Code Edition'and Addenda 3 OK Reviewer i /. l 0 second interva! J3 third inGrval ,7 preservice O 80 W81 0 86 no addenda El 89 no addend t O other l
- 6. AM p!*. ace 5tward k UK Reviewer i f. '
O IWB-3514 O IWB-3515 - O IWB-3516 O IWB 3518 JII IWB-351 ] IWB-3511 O IWB 3512 O IWB 352 O IWB-3523 O IWC-351 O IWC-3511 O IWC 3512 O IWC-3513 O IWC-3514 0 IWC-3515 7.Calculauons %I OK Reviewer 1r/ wi DI Nt LO Sh4 %)r( h.d14,f : f g, { # g, 4 g g bTp' M w -fn u ? lane -f% .- c.go' 6 v. f rf s " L 0'3006 l
* = 0.37c8 %d -k o.26 ;
)
- d. (
d se- 4 40 11 e d cafta 74ase: L b o.3oot . 2cund -/o C; $ 2 j T = C.Iio
= 0e C T8 3 Trewv Tctble Tg)8 - 3 r to - t .
Y k ?- C o . f rf8 y-( . o.ac c.i y Y=t i
=
e, am 3.2 => , O s 'f D V. b f
, l
- 8. Eesults gOK Reviewer le T c/g = 6, M calculated o/t %= f. 3 7 )
l Code allowab[ c/tNA %= C 17 < % 2 <' f. s % l laminar flaw surface area: (0.7-$* i
- w) =
4 9. Table used for analysis F OK Reviewer i 1J IWB-3510-2 O IWB 3510-3 O IWB 3511-1 O IWB 3511-2 O IWB-3512-1 JD IWB-3510-1 O IWB-3514-4 O IWB-3514-6 4 O IWB 3512 2 O IWB-35141 O IWB-3514-2 O IWB-3514 3 i O IWB-35151 O IWB-3516-1 O IWB-3516-2 O IWB 3518-1 O IWB-3518-2 ' O IWC-3510-2 O IWC 3510-3 O IWC-35111 O IWC-3511-2 O IWC 3512 2 O IWC 3510-1 O IWC-3513-1
- 10. Was linear interpott tion used? O yes pl no if no, why? q f)bC(rest f ifno,why?
/g $u
. I1. Was IWA-3200 significant Digits For Limiting values followed? y yes O p MOK Reviewer 12.The correct Code Edition and Addenda was available and used. Ji] yes Preqlrcr J OKNReviewer [//I gg/97 y/7
- 13. Statement of acceptability or rejectability with basis (, OK 14 viewer e 1 i
50 Accept. O (a/t) Code allow bl 2 (0/Ocalculated (a/DCode a lowa li < (0/Ocalculated 4 [ Reject. g UD OEM flaw es lua o t handbook (sep attached analysis)
'5. Prepared by and date i Enghe ring review b)[and ate 17. Approved by and date c( a s p w r/ g -
.-r - - -
4y - A~
----i..-
WU a on s inn e wed k sosJes makeds. neethraag we enmcr adin actedewe wnh spplisaMr smirs The resnits as csroest ad he artbudag sueells e academe wuh o.
- ell ersadore, apptwuMr sum ndtrat qwesMcutuen edprewestures or tanosas tJ pnuoders i
\ Page // of '70 -
. O % m2Z#g REVI5 ION 10 3 94 l s l N J VsNGt15MSIFDwRO DOC ist Flaw Depoeiram Woritaneet Revision 0 1 .,. . s u i< v - v v r- a
l l , Surface / Embedded Flaw Demarkation Une f Y I 0.13 - E:nbedded Flaw - - FLAWS WITH alt
-e--5 : H Configuration
4 ABOVE THIS LINE ARE
- NOT ALLOWABLE 0.11 .._-" 10, 20, 30 yrs.
0.1 0.09 8 : marc 0.08 c' ;-;a: -: 3 _CO
-Surf ace '
$ 0.07 g pi,,,in t3i, O E Region Must be :
e gg- A - g 6 0.00:Lgconsid M ( 'yv Nia:s" W' ,
= 0.05 ._
m _ __= :- y T ~
~
\
0.04 " . 5; ALL EMBEDDED FLAWS (ON THIS SIDE OF DEMARKATION LINE) 0.03 ARE ACCEPTABLE PER CRITERIA OF IWS 3600 AS LONG AS 2alts0.25 0.02 - l l 0.01 0 0.225 N.25 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 c[* A+ 5 '.WpO,wge<h,ta ce from Surface (6/t) k#=W3 d
- Y. t( f #" $ 3 . ir*l % '
o t.3446 Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel He Prairie Island Units 1 and 2 _ Surface Flaw 1 Longitudinal Flaw X Inside Surface X Circumferential Flaw i X Embedded Flaw l __X Outside Surface . ( = A. , \ ! TS'"I /La.y r/ [9- t 3 4, Rw 97 3 , O. L. 6 A2-7 ) JM4 1299w.wpf:1b/011995 ew_ m ma- _,,mu QQ 4 p-
~. 1
))
?ISI Flaw Sizing Worksheet :
- 2. FI;w Number 3. Item Number 1.151 Reportgumber r T A. kY~O('SN b / $ A* O f +4,ISIInWerval 7QK Reviewer fd 5. Code Edition and Addenda SOK Reviewer 17 6. Method S UT O RT r
' O 2nd interval R3rd interval O preservice O 80 W81 0 86 no addenda W 89 no addenda u other O PT O MT
[ i 1. Flaw Sketch ptK Reviewer f1 y / Q,f 4 Front Vww y [ [ ' O' i O,(ooll"
O,S' p g
+
Top View Tnu. i
&o $.(c Side View Trx e 1
8.Cdculations ET K Reviewer U Show detemunation of surface or subsurface
$d 8 C.
Show determination of type of"a* to use
$8 L O-
- 9. ISI-FE-l Paragraph 7.0 " Rounding 4ff Method" was used. %yes Preparer N Reviewer b i/ ,e
- 10. Code Flaw Dimensions D6K Reviewer "t " = g ,q, " "a" = 0. '$00 V "in o," = S flod' "t " = N/A "s" = 0. 9 s-9 % "w" ~ /J {A II.FlawType GtK Reviewer 41 O Surface Planar RIT/RD / NSubsurfacefian (UT D D Laminar AJT/R'n O Linear (FT/MT/RD V
- 12. Flaw Characternation Figure GDK Reviewer C1 O IWA-3330.I' O IWA-3350-1 O IWA-3380-1 O IWA 34001 O IWA-3310-1 O IWA-3340-1 O IWA-3360-1 O IWA-3390-1 E!WA-3320-1 O Flaw 5
- 13. Flaw Characternation Figure Number 5 flaw 1 O Flaw 2 O Flaw 3 O Flaw 4
- 14. Was IWA-3300 Flaw Characterization followed? @ yes O no if no. why? , / ,,
I
- 15. The -we Code Edition and Addenda was available and used. MLyes P gwd-% 3 GTOK Reviewer U /}
- 16. Prepared by and date 17. Review by and date l
j f, f f n - . ,..., . ,,-< - -.a-.-, r n. ,-. nperencer,ans edproceacu
- - - ,-. . ,,.au .~ s.a appheet. codes orand.s-dr mees)feenone andprotekres ?
Page /3 d 70 pecort o 9 2-0/3C O_
-lterwaan t llDiW4 iW1- }
l NSP 013NCNSN51FSW11. DOC 131 Flaw Sg W '
, Flaw Sizing Calculationa Using M:tal Path for Veccal Wsids > 2" Fcr curfics and cubrurfica singla planir fliws oriIntId in plina normal to przecure rstaining surfica ASME SECT XI 1989 W/ NO ADDENDAY NITIAL TO VERIFY ISI Report #_97-0136 Evaluation Performe ByN / Date: f7 Flaw #_3 Reviewed By: f. h Date: 3- W 'M !
Length Length of the flaw "."is determined by finding the difference between L1 and L2 for perpendicular scans, l W1 and W2 for parallel scans. l L and W values are from page __ of the UT report. (= 143 . 8 (L2) - 143 ._2_ (L1) = _0_ ._8,_ inches. ) l Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). This value is from page _,1_, of the UT report. I "t" = 5 .160 inches Calibration The measured angle in the calibration bicck was 45 . O degrees Calculations using metal path From page __ of the UT report, Scan # 1 , The flaw exhibjted 20% DAC at _5. 09_ and _5. 94_ inches MP. Max amplitude is at _5. 47_ inches MP with the transducer exit point at _-2 . 4 inches (W) from the centerline of the weld and _143. 2_ inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is ; conservative.)
- 1) Determine the upper depth of the flaw from the exam surface.
_5. 09_ (metal path at 20% upper)
- COS of the measured angle _0_._7071_ = _3. 5991_ inches depth.
- 2) Determine the lower depth of the flaw from the exam surface. I
_5. 94_ (metal path at 20% lower)
- COS of the measured angle _0 _7071_ = _4. 2002_ inches depth. I 1
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point. l
_5. 47_ (metal path at maximum amplitude point)
- C( S of the measured angle _0_._7071 =
_3 . 8678_ inches depth.
- 4) Determine the distance from the center line of the weld to the maximum amplitude point of the flaw.
_5. 47_ (metal path at maximum amplitude point) squared = _29. 9209_ (a2) _3. 8678_ (depth at maximum amplitude point) squared = _14. 9599_ (b2) 4 a2 - b2 = _3. 8679_ inches of surface distance to the flaw from the transducer exit point. '
-2.4 (Wmax) _3. 8679_ (surf dist) = _-6. 2679_ inches to the centerline of the weld.
- 5) Determine S by picking the smaller of!: .~ollowing; ,
S = _3. 5991_ (result of 1) = distance between exam surf 6ce and the upper flaw tip ]
>> OR u i S = _5 ._160_ (part "t") _4. 2002_ (result of 2) = _0. 9598_ distance between the side opposite exam surface and the lower flaw tip l
- 6) Determine 2d in though wall thickness.
_4 . 2002_ (from step 2) _3 . 5991_ (from step 1) = 0 . 6011 inches. I Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0,_. ,1202 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = ,_. inches. If S is greater than or equal to 0.4a the flaw is sub. surface. a = 2a / 2 = 0 . 3006 inches. t = _0_._8,,,(for all > 0.5, t = 2a) t = _5_.160, (part thickness) a = 0 . 3006 (surf or ub su circle one) S = _0.,_._9598 Page /# of Y70 neportl 92~0136/U flawtrig (for perpendicular scans) Rev 0
internal Correspondence
- cate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File Locaten subject Use of revised ISI calculation worksheets and correction for curvature G Euau n.~ .s& t.t /emw ro b l *'"d ### *4 Gum 9 7-c /o't . fyr Tow AAMem (Wp*,* Y,,$/w During the 1997 inspection of Steam Generator 22, weld W-A, several indications #
were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 M to perform the flaw evaluation, it was determined by the level 111 that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/tk l new worksheets were developed that have the foilow;4g benefits;
. The determination oflength varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference
- between L1 and L2 for perpendicular scans, and Wi ano W2 for parallel scans.
- The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% , DAC. l
. The methodology to calculate depth is based on metal path and obviates the need to convert screeri divisions into depth relating the calibration block to the component.
)
1
, Consideration of the effect of the curvature of the vessel on depth determination for indications !
Rxport ind # scan type Max MP Radius surf dist diH prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 circ 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 J 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.067'8 - l 9 3 ci.c 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 l 10 4 circ 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 l
- 11 4 cire 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 cire 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Tha information provided above was developed in response to comments from the reviewer of the ISI UT calcuhtion worksheets.
The original worksheets did not consider curvature when determining indication depth on the circumferential scans. The corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. A JA
' +
2l6kT A Y CM Thomas Jones Lvl lil "ran'ISI Program l(/ingr Jeff Ricker Supt M&SP pe 6 or70 ne90 0 'Y h o T.A A l
d
/ ISI Flaw Disposition Worksheet /
1.151 Report Number f 2. Fhw Number 3. hem Number 5' 6 4. + o if.)rotai Number of Pages / . Pr 2 4t- 013 0 / I ISL interval R OK Reviewer L // 5. Code Edition and Addenda %OK Reviewer d /- O second interval JD third intTr, al O rt,eservice O 80 W81 0 86 no addenda ,El 89 no addenla O other
- 6. Acceptance Standard rs (1OK Reviewer i pl IWB-3510 C WB 3511 O IWB-3512 O IWB-3514 O IWB-3515 O IWB-3516 0 IWB-3518 0 IWB-3522 O IWB 3523 O IWC-3510 0 IWC-3511 O IWC-3512 O IWC-3513 O IWC-3514 O IWC-3515 7.Calculanons E OK Reviewer W.
Ternv xlin.chet(. IsI N Sg Wer k.ched : /= /. o ' 4= 0, /U t
%T p. Sasw[n ce- }lanw % = r. ito " != t h~ W'
' 0'UU
= 0. Ib 2b faun d. -+o o, if I (.o tlce 4 to I .2 bb c whu_ bo :
A t). I I, 2. 6
~.[~ ]
=' 0e 0 3I C Anind }v 3, 2 %
- f. l I C FtT nv IAb>Ie- 3'hM -3fl0 - I 1 h_ fil = l. 2[M -
- e. 2 cy=t o,tc 3. A 1 1 = '2 O 1416 1
Y InWpM&~ l[,o,u, , g g , 3. o 2, f i
.1
- 8. Results ROK Reviewer N *
~
a/g . O.16 calculat d c/t %= 3.27. Code allowat le c/t %= 3 i D 7. laminar flaw surface area: (0.7]
- 1
- NA- w) =
- 9. Table used tor analysis @ OK Reviewer A -
'l] IWB-3510-2 O IWB 3510-3 O IWB 35111 O IWB-3511-2 O IWB-3512 l fl IWB-3510-1 O IWB-3514 4 O IWB 3514-6 O IWB-3512-2 O IWB-3514-1 O IWB-3514-2 O IWB-3514 3 O IWB 35l51 O IWB-3516-1 O IWB-3516-2 O IW B 3518- O IWB 3518 2 O IWC 3510-2 O IWC-3510-3 0 IWC-3511 1 O IWC 3511-2 O IWC-3512 2 O IWC-3510-1 O IWC-35131 l /
- 10. Was imear interpolanon used? 01 yes O no lf no, why? / If n . hy?
OK Reviewer If*
- 11. Was !WA 3200 Significant Digits For Limiting Values(OKfollowed? Re' viewer . 3 jib yes O no [Y 12 The correct Code Edition and Addendawas available and used. )Q yes Preparer,
- 13. Statement of acceptability or rejectabthty with basis ELOK Reviewer _ C47
/ O Accept. O (c/OCode allowgbl: 2 (0/Ocalculated (0/OCode a lowtbl < (0/Ocalculated Reject. ' g/ y E OEM flaw es luyti o n handbook (see attached analysis)
I xE gm:enng review by a o date 17. Approved by and date
- 15. Prepared by and date
- - - -. ~ . - ...
apponenkk unkt musda qwerficennu ardprmehrer
-.....d
__1 he@ dad pmereren
-.~ -- - - -.-
as _16, mprmt a_ _ _ _ , _ _ skw+msen > we f suudesk awesthuruun sed avacebres V ___ /d ' '~'as"M IV , Revision 1046-94 l j N I MsNGNstustFDWR0 Doc tst Flaw Duposioon Worksliest Kension 0 Reporti y 7 - o/.16A /
Surface /Ernbedded Flaw Demarkation une 0.13
" Embedded Flaw '
7 ^: - Configuration . g FLAWS WITH alt
- Ason mlS LINE ARE
' 0'12 ' 5 - NOT ALLOWABLE 0.11 i IT'u'E5.. b--- 10,20,: 0 yrs. 0.1 - m 0.09 E .08 0 ' a ::
!!ll 5 -Surface L2- 0.07 g pi,,, g3, O E Region Must be Eo 0.Os 5C*"d**
E surf.e. - g E Flaws W- "* -
- 0.05 . . . -=:
3 - . o ["{ , $ 3 % BEJQED FLA W"' **" 0.03 DEMARKA110N UNE) ARE ACCEF TABLE PER CRITERtA CF IWB 3600 0.02 LONG A5 2a/ts0.25 0.01 0 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 . 2.V oo I
,, Distance from Surface (6/t)
[*A+G5 .147C 413s%" : 1. 7 2 4 t ,g h
- 9.tL6 S s I, %~ M
o.s.tGts" Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and 2 X Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X Circumferential Flaw TSI 12aporf #9 ? di 36, N.JT,6.K. 6) LM6oold , M 3[YN A2-7 1299w.wpf:1b/011995 _ 7 Page_ D -d NO >
-, mnw l
ISI Flow Sizing Worksheet i 1.151 Report N 2. Flaw Number 3. Item Number
,4.ISIInterval IPDK Reviewer Cl 5. Code Editionand Addenda li2tK Reviewer il 6. Method E UT O RT l O 2nd interval % 3rd interval O preservice O 80 W8i O 86 no addenda #89 no addenda O other O PT O MT
- 7. Flaw Sketsh O'OK Reverwer 4A p g ,g j 4 Front View b I.4W1G
~~T't !
l c.1255 '
- 1--
b /.O d Top View l 1 l ' grm # ; k- Q+ t. fo203 ' )
. side View Tm # I
/ .
- 8. Calculations G'OK Reviewer VI Show deternunation ofsurface or subiurface ,
i I88 4 I Show detemunation of type of"a" to use
$ d d-
- 9. ISI-FE-1 Paragraph 7.0 " Rounding-Off Methodwas used. Nes PrepareMr EOK Reviewer
- 10. Code Flaw Dunensions (D4K Reviewer (l "t " = 1.0, "a" = 0. 6zG "t " = S tfoo "t_" = s)/A "s" = 1, x7<. "w" = p/k 11.FlawType (DOK Reviewer 1I O Surface Planar (UT/RT) J ELSubsurface Plan (UT T) O Larninar(Ur/RT) O Linear (PT/MT/RT)
- 12. Flaw Charactenzation Figure GDK Reviewer f"1 O !WA 3310-1 O IWA-3330-1 0 IWA-3350-1 O IWA-3380-1 O IWA 3400-1
%E IWA 3320-1 O IWA 33401 O IWA 3360-1 O IWA 3390-1
- 13. Flaw Charactenzation Figure Nurnber Bflaw 1 O Flaw 2 O Raw 3 O Flaw 4 O Flaw 5
- 14. Was IWA 3300 Flaw Characterization followed? $(ves O no Ifno, whv? r / .
- 15. The correct Code Edition and Addenda was available'and used. %es ",ep.r.M J (YOK Reviewer 5]A
- 16. Prepared by and date 17. Review by and date fA &# J/>ff fJ ~ 3 #~97
- n. - ~ u ,- ,.. . - n .. . a -s.a ~-.J.,,-a...--..
appstenal..odas stand.ds or*e Me.rtons andyme.ks nr.etAr.tsono endomeeks pp /P _d 70 - pep m T 2-0)S U ) ItEVISION !t il-l NSP ON5NGNSN3tFSWill DOC 131 Flam Sunne W~*h K.wmon ! -
. Fisw Sizing Cciculitiana Using M tal Pa.th for Vmti Wrlds > 2" d
Fer curfIca tnd cubIurfica tingla plIntr ft ws orlintid in plins n rmal to pre; cura ritalning turfics , ASME SECT XI1989 W/ NO ADDENDE:T/6t fINI IAL TO VERIFY j ' ISI Report #_97-0136 Evaluation Perfor d y.M. M te: k ! Flaw # 5 Reviewed By: W Date: 3- S'7 ) Length , Length of the flaw Y is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans. L and W values are from page.,__ of the UT report. l= 39 . 5 (L2) - 38 . 5 (L1) = ,,L._,0,,,, inches. f
' Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one).
This value is from page _1,,,,_ of the UT report. y "t" = ,,,5_. 160 , inches Calibration The measured angle in the calibration block was _45,_._0, degrees Calculations using metal path From page ___ of the UT report, Scan # 1 The flaw exhibited 20% DAC at _1. 92_ and _2. 38_ inches MP. Max amplitude is at _2.15 inches MP with the transducer exit point at -0.1 inches (W) from the centerline of the weld and _39. 2, inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
- 1) Determine the upper depth of the flaw from the exam surface.
__1. 92__ (metal path at 20% upper)
- COS of the measured angle _0_._7071_ = _1. 3576_ inches depth.
- 2) Determine the lower depth of the flaw from the exam surface.
_2 . 38_ (metal path at 20% lower)
- COS of the measured angle _0_._7071_ = _1. 6829_ inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
_2 .15__ (metal path at maximum amplitude point)
- COS of the measured sngle _0_._7071_ =
_1. 5203 inches depth.
- 4) Determine the distance from the center line of the weld to the maximura amplitude point of the flaw.
_2.15_ (metal path at maximum amplitude point) squared = 4. 6226 (a') i _1. 5203_ (depth at maximum amplitude point) squared = 2. 31% (b') 4 a'- b8 = _1. 5203_ inches of surface distance to the flew from the transducer exit point
-0 .1 (Wmax) _1. 5203_ (surf dist) = -1, C203 inches to the centerline of the weld.
- 5) Letermine S by picking the smaller of the following; l 6 = _1. 3576_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR S = _5_._160_ (part "t") _1. 6829_ (result of 2) = _3 . 4771_ distance between the side opposite 1 exam surface and the lower flaw tip !
- 6) Determine 2d in though wall thickness.
_1. 6829_ (from step 2) ,,1. 3576_ (from step 1) = _0 . 3253_ inches. Determination of surface or subsurface c- 0.4d = (2d / 2)
- 0.4 = _0__._0650_
Compare to S (from step 5) 1 If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub. surface. a = 2a / 2 = _0.1626_ inches.
! = 1_._0_ (for all > 0.5, f = 2a) t = _5M 60_ (part thickness) a = _0_._1626_ (surf o@ circle one) S = _1. 3576_
Reporti D@ flawtrig (for perpendicular scans) Rev 0
l l-Internal Correspondence b l oate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File tecation subject Use of revised ISI calculation worksheets and correction for curvature
% Eun w n ~ s&t.t. how re & *s"Af *4 Gm 9 7-c /c1? . fpt. Th eo- AAMoos (7W. l,* W'" Ybe ,
During the 1997 inspection of Steam Generator 22, weld W-A, several indications CM were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 M to perform the flaw evaluation, it was determined by the level 111 that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/Tk new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Consideration of the effect of the curvature of the vessel on depth determination for indications Rsport ind # scan . type Max MP Radius surf dist d_iff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7- 3 cire e 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0,'721 8 3 cire f 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0. 678-9 3 cire 3.85 67.50 2.7224 0.0540 71124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 cire 1.49 67.50 1 0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 cire 2.07 67.50 i.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 circ 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 cire 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Th3 information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. Tha original worksheets did not consider curvature when determining indication depth on the circumferential scans. The corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. d A- JA 1hkT A ' CM Thomas Jones Lvl ll1 Tin 'Tran'ISI Program K/Ingr Jeff Ricker Supt M&SP Page 2.o ___ of % Report i _O-6M I
f . ISI Flaw Disposition Worksheet g I ISI Report Number J 2. Flaw Nufhber l 3. Item Number 14.1p Number of Pages $ W.2 W-00% f S A* 4O ll
, ISI interval (OK Reviewer AF
- 1j SioOdition and Addenda %OK Reviewer Hf '
O second interval ,8 third initdrval O,p/eservice O 80 W81 0 86 no addenda E 89 no addendl O other
- 6. Acceptance Standard E OK Reviewer Jii/
5 IWB-35 O IWB4512 O IWB-3514 0 [WB 3515 O IWB4516 O IWB4518 QIWB45tl 0IWB45 O IWB4523 OIWC45 O IWC-3511 O IWC 3512 O IWC-3513 0 IWC 3514 O IWC4515
- 7. Calculations [ OK ReviewerLQ
# ' Y $ttsQ frf 10 W}c.c h & : l y,}' 4 f g>g gf '
% ' y . w .pta %v y - c iw n o. uor \
fr = 0 412? few( 4 t;,0; b SC- 4 "I'D i1 M M A Le_ (TAO - b, ee Tl fb9* * - o' GD I A exwd. +o 0.1+ 7, D lb O
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kw b .2 s o 7. . Ecu ta& 6 keepk .
/J -
Q. Results KOK Reviewer ' 1 all = 0. A A calculated c/t %= 0, l'/ % Code allowabje c/t %= J.0*4 d' N 'd C 0 2 laminar flaw surface area: (0.75 + ! + w) = NA
- 9. Table used for analysis OK Reviewer J _,,,, O IWB4512 I 0 4WB-3510-2 O IWB4510-3 O IWB45111 O IWB4511-2 IWB-3510-1 O IWB4514 ' O IWB-3514-3 0 IWB-3514 4 O IWB-3514 6 O IWB4512 2 i IWB4514-1 U IWB4516-1 O IWB4'.o-2 O IWB-3518- O IWB-3518 2 O IWB45151 O IWC-3512-2 O IWC4510-2 O IWr,4510-3 O IWC-3511- O IWC45112 O IWC4510-1 O IWC4513-1 [
_0,. Was imear interpolatnn used? O yes @ no if no, why? & ObHr Lte }* T r If n<' why?
- 11. Was IWA4200 Significant Digits For Limiting Values followe ? Kyes O i > f OK Revie er
- 12. The correct Code Edition and Addenda was available and used. Jia yes Prep er Y OK Rekiewer .
- 13. Statement et acceptability or rejectability with basis % OK Reviewer M'-
J pAccept. % (a/t) Code allowable 2 (a/f)chlculated O . (c/t) Code allowable g(a/t) calculated O Reject. O OEM flaw e%1uation handbook (see attached analysis) ing r: view by an date 17. Approved by and date
- 15. Prepared by and date i Engtrje e "' O '
{ _
$ 1h nwrw 1smors than the remis er stwercs med the noeshenkden Thus prpmn:I assurra sku all bowdved **th shnflaw a:ms anflkn*
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# Pv'e 2i nf 70 - KEyls10N 10 26-94 l m _ ,,, , 3 , ,3 l N I usNGtJsNSLFDWR0 DOC 158 Fiew Disposition worksneet Revmna O < "'WWI nepgt i e
- 41SI FI w Sizing Wrrksheet .
1.131 Report N 2. Flaw Nunter 3. hem Number 61 3. Code Edition aard. Addenda ~K Reviewer A/ 6. Method TI-UT O RT 4.151Interva! QK Reviewer O 80 W81 0 86 no ed d da 89 no addenda O other O PT O MT O 2nd interval y 3rd intarva! O , r. ice 7 "'* 8C 8 * "''"
# +- / 6 f. 2 3 Y --a, T
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+ v
- p. lo .20f t
Top View n g 6/.C3
- C. 3 d l
Side View YY ' gI I
/ .
8.Cticulations CTOK Reviewer kJ Show determination of surface or subsurface 6dd 4/ Show detemunation of type of *a" to use
$Q &
- 9. ISI-FE-! Paragraph 7.0 Rounding-Off Metho&* was used. % PreparA Reviewer I
- 10. Code Flaw Dunensions GIOK Heviewer kJ n " = e.) "a"= o.001i "t :' = s.tW"t.-.;' = a/k "s" = o. 620( "w" = a/k II.FlawType GTOK Reviewer il _
O Laminar (Uf/RT) O Linear (PT/MT/RT) O Surface Planar (Ur/RT) f~ Wubsurface PlanhT) " 12.FlawCharacterizationFigure GDK Reviewer i7 O IWA-33501 O IVA-3380-1 O IWA-34001 O IWA 3310-1 O IWA-3330-1 ~ O IWA-3340-1 O IWA-3360-1 O IWA-3390-1 N IWA-3320-1 O Flaw 5
- 5. Flaw i O Flaw 2 O Flaw 3 O Flaw 4
- 13. Flaw Charactenzation Figure Number
- 14. Was IWA-3300 Flaw Charact u.4.on followed? Swes O no tf no. whv? .
t5. The -...a Code Edition and Addenda was avr.ilable and used. %es Prepar-W 3 (*FOK Reviewer Cl_
- 17. Review by and date
- 16. Prepared by and date 3 I"
i fk. - n ~.>oad . .-- w a 2 n/t7' a - . ~ - - f.J wir4#c.M. codo se.nd.ird, g evoc. iron, a,,4 peareh,
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Page 2 2. _ of 705 nwlo 97-013M) RIVlsiON 11-tt-94 l NSP ONSNGNSN5tFSWill. DOC ISI Fine Siang Wort.sh.st Revu.on 1
j [
. Fisw Sizing CElculatiana Uning Mgtal Path for Vegasi Wald2 > 2" Fcr turf:cs End cubsurfica singl3 plInar fl ws cri:nted in pl ns normtl to presture retaining surfics ASME SECT XI 1989 W/ NO ADDEND ("7I4 INITIAL TO VERIFY ISI Report #_97-0136 Evaluation Perfo dB h/I Date: U
] Flaw # 6 Reviewed By: M~ Date: 3-11/_-9 ;
- Length l Length of the flaw Y is determined by finding the difference between L1 and L2 for perpendicular scans, j W1 and W2 for parallel scans.
j L and W values are from page __ of the UT report. 4
!= -1. 7 (W2) - -1.4 (W1) = 0 . 3 , inches.
7 Thickness 4 . Thickness of the component at the location of the flaw, using UT or nom wall (circle one). j This value is from page _.1,__ of the UT report. l "t" = _5 .160_ inches i s Calibration } The measured angle in the calibration block was _45. O degrees i i Calculations using metal path From page __ of the UT report, Scan # 3 l The flaw exhibited 20% DAC at _6. 40_ and _6. 42_ inches MP. Max amplitude is at _6. 42_ inches MP with the transducer exit point at -1. 5 inches (W) from the centerline of the weld and _160. 7_ inches I (L) from the O' reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is j conservative.) 4 { 1) Determine the upper depth of the flaw from the exam surface. ] _6. 40_ (metal path at 20% upper)
- COS of the measured angle _0 . 7071_ = _4. 5254_ inches i depth.
l l 2) Determine the lower depth of the flaw from the exam surface. l _6. 42_ (metal path at 20% lower)
- CO" of the measured angle _0. 7071 = _4. 5396_ inches depth.
j 3) Determine the depth of the flaw from the exam surface at the maimum amplitude point. _6. 42_ (metal path at maximum amplitude point)
- COS of the measured angle 17071 =
l a 4. 5396 inches depth, i } ~ 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw. j _6.42 (metal path at maximum amplitude point) squared = _41. 2164_ (a2) ! _4 . 5396_ (depth at maximum amplitude point) squared = _20. 6080_ (b') 4 a'- b' = _4. 5396_ inches of surface distance to the flaw from the transducer exit point. jl _100. 7_ (Lmax) + 4 . 5396_ (surf dist) = _165. 2396_ inches from O' reference. }- 5) Determine S by picking the smaller of the following; S = _4. 5254_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR "
-! S = _5 .160_ (part "t') _4 . 5396_ (result of 2) = _0. 6204_ distance tween the side opposite j exam surface and the lower flaw tip t j 6) Determine 2d in though wall thickness. i _4. 5396_ (from step 2) .4. 5254_ (from step 1) = _0. 0142_ inches. i
- Determination of surface or subsurface
! 0.4d = (2d / 2)
- 0.4 = _0. 0028_
", Compare to S (from step 5)
+ If S is less than 0.4d, the flaw is surface. a = 2d + S = inches.
If S is greater than or equal to 0.4a the flaw is sub-surface, a = 2a / 2 = _0. 0071_ inches. i f = 0. 3 . (for all > 0.5, t = 2a) t = _5.160_ (part thickness)
- a = _0. 0071_ (surf or circle one) S = _0. 6204_ g 23 3r ?o I Reporti U MUl j flawtrig (for parallel scans) Rev 0 1
e- -
Internal Correspondence b cate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File Location subject Use of revised ISI calculation worksheets and correction for curvature
% Es.. m n=~ .w ns. A.un,,w ro & c t.esud &d &Y GMm 9 7-o /o ? . fg Tea.ca.~/1AMom fff,** Y, $4e l During the 1997 inspection of Steam Generator 22, weld W-A, several indications # '
were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 M to perform the flaw evaluation, it was determined by the level lli that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/th new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans. :
. The level of recording in relation to DAC is corrected for flaws less than 100% !
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obvbtrs the need !
to convert screen divisions into depth relating the calibration blNK to the j component. l l Consideration of the effect of the curva;ure of the vessel on depth determination for indications Riport ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 circ 3.92 6/.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 ) 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 circ 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.S758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 The information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. The original worksheets did not consider curvature when determining indication depth on the circumferential scans. The corrected values for "S* were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. A- 2dd T hkT h Y Md Thomas Jones Lvl 111 Tin Tran'lSt Program 10lngr Jeff Ricker Supt M&SP Paga N O' - ReportL D~
ISI Fliw Dispositian Worksheet j 1,151 Report Number . Flaw Number 3. Item Number 14. T/)ial Number of Pages iT1 W"Of Y t 0A' 11 $
, t.151 Interval K OK Reviewer Id. 5. Code Ediuon and Addenda $ OK Reviewer d O second interval JE third interMI O . service O 80 W81 0 86 no addenda E 89 no addendif O other_
(
- 6. Acceptance Standard g OK Revie r H.
O IWB-3512 O IWB-35ta O IWB-3515 O IWB-3516 O IWB-3518
,1B IWB-3510/
%WB-3511 O IWB-3523 0 IWB-35' O IWC 351( 0 IWC-3511 O IWC 3512 O IWC-3513 0 IWC-3514 O IWC-3515 7.Calculauons (OK Reviewer { <
;fm~ n., AEt.che<{ IE & MM : ./ , g, g ' g, ,,
% Tye. :
sd wftr lla.w -f, , c- g n ;, g o r 0' A
- f= 0. c
= 0 . E Vo [~ few3cl -/v C,30 ice + -b L1 saw(mu. 60:
L o.\$oa hwd 40 3 C% yZ c - -
- 0. 0 3 if 1 n (4 o
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- 0. Lo 4'lY 9% okwv4 k , W w.
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- 8. Results % OK Reviewer /d c/l = 0. 3 C calculate c/t %= 3. O Code allowable c/t %= 4. // 7 laminar flaw surface area: (0.7{y I + w) = N/V
- 9. Table used for analysis & OK Reviewer __ Mi- O IWB-3512-1 O IWB-3510-2 O IWB-3510-3 0 IWis 35111 O IWB-3511-2 JH IWB 35101 O IWB-3514 3 O IWB-3514-4 O IWB 3514-6 D IWB-3512 2 O IWB-3514-1 O IWB 3514 2 O IWB-3516-1 O IWB 3516-2 O IWB-351.8-) O IWB-3518-2 O IWB-3515-1 O IWC 3512-2 O IWC-3510-2 O IWC 3510-3 G IWC-35112 ,
O IWC-3510-1 0 IWC-35tif
! / l O IWC 3513-1
- 10. Was liner !nte pe%on used? O yes jl4 no it no, why? c)l,it N A, h p 1 I OK Re* ewer #1 Ifno. fhy?
11.WasIWA-3200 significant Digits For Limiting er Values followed? jfMyes
- O ob [N 12.The correct Code Edition and Addenda was available and used. K yes Prepg %OK Reviewer L *
- 13. Statement of acceptability or rejectability with basis % OK Reviewer _
@ (a/DCode allowabj 2 (a/Ocalculated pAccept.
O (a/OCode allowh e < (a/Ocalculated O Reject. O OEM flaw egaludti n handbook (see attached analysis) E u penng review y and ate 17. Approved by and date l 15 Prepared by and date l b 5~Y f M& O J .ajac w 1f. 0
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- walr: ussJwes l N MisPJCAlsrJsiFDWR0 DOC iSI Flaw Dnperma Wwkshou Rome o pqg Q")=Cf3 Q l REVl510N iM6-H l
l
* \ ' ISI Flaw Sizing Werksheet )
1.151 Report N g 2. Flaw Number 3. Itern Number g ' 4.ISIInterval 70K Reviewer ZJ 5. Code Edition and Addandl 60K Reviewer f/ 6. Method D UT O RT U 7nd interval Wrd interval O preservice O to Wat O 86 no addenda %s9 no addenda O other O PT C MT
- 7. S SOK Reviewer Li % y g, g /" g O 1 f
B 74 __ 4 , l' 2.i10 1 f A Top View Q g gg , 1 l w f~ $e j 1P* // , e o.c -, l l l l
~
Side View
= l i
O A I
- 8. Calculations ObK Reviewer4f Show deterrunation of surface or subsuTface a- '
See Show deternunation of type of"a" to use
&L $
- 9. ISI-FE 1 Paragraph 7.0 Rounding 4ff Method"was used.hes Prepar% D6K Reviewer h
- 10. Code Flaw Dunensions DDK Reviewer 'l I "t " = o. /o . "a" = o , I e I "L=" = s'. IO "f " = W/d "S" = .2. /fo '/ "w"= N/d i1.FlawType GDK Reviewer 4J O Linear (PT/MT/RT)
O Surface Planar (UT/RT) / Wubsurface PlanhT) " O Laminar (UT/RT)
- 12. Baw Charaderizatica !'igure 60K Reviewer if O IWA-3400-1 O IWA-3330-1" O IWA- G)-1 O IWA-3380-1 O IWA 3310-1 O IWA-3340-1 O IWA-3360-1 O IWA-3390-1 K!WA-33201 O Flaw 4 O Flaw 5
- 13. Flaw Characternation Figure Number RFlaw 1 O Flaw 2 O Flaw 3
- 14. Was IW A-3300 Flaw Characterization followed? Wes O no If no. why? / - ,
t 5. The conto Code Edition and Addenda was available and used. 7_. Preparer % J ETOK Reviewer i / /1
- 17. Review by and date
- 16. Prepared by and date E #H
-7~b~ w w 04f ;/n/ey t The nelta are correct ead she methodology sued u Jn senardance with applicable se es, standards.
E d-Thu remw asaaes skar she remlu are correer and the meuhadology used u en accordance enth appitenble redes standards. speenRearnan.r and ornemhare amenneannaan and proce. hoes Page_ 2 b Of 70 - Reped 77'0/36#l - REVIStON !!-il-9]4 l NGP O31SNGMSMstFSWRI DOC IS1 Finn Song Worksheet Revuwm l .
. Fliw Sizing Cricultti::na U2ing Metal Path f:r Ve22sl Walda > 2" ;
Fer curf;ca rnd c ubsurfico tingla plIntr flIws cri:nted in plini n:rmti to prieure retaining curfics ! ASME SECT XI 1989 W/ NO ADDENDQ I INITIAL TO VERIFY ISI Report #_97-0136 Evaluation Performed 4A// Date: 2 k Flaw # 7 Reviewed By: f. . C Date: 'WV-97 Length Length of the flaw "I'is determined by finding the difference between L1 and L2 for perpendicular scans, . W1 and W2 for parallel scans. j L and W values are from page _ of the UT report. t = -3 . 5 . (W2) - -2. 9 (W1) = _02 inches. Thickness i Thickness of the component at the location of the flaw, using UT or nom w~ sc ircle one).
- This value is from page _1__ of the UT report.
] "t" = _5 .160_ inches . Calibration The measured angle in the calibration block was _45. 0_ degrees l Calculations using metal path From page _ of the UT report, Scan # 3 4 The flaw exhibited 20% DAC at _3. 76_ and _4. 27_ inches MP. Max amplitude is at _3. 92_ inches MP with the transducer exit point at _-3_2_ inches (W) from the centerline of the weld and _235 . 5_ inches (L) l' from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.) i) Determine the upper depth of the flaw from the exam surface. < _3. 76_ (metal path at 20% upper)
- COS of the measured angle _0. 7071_ = _2. 6587_ inches depth.
- 2) Determine the lower depth of the flaw from the exam surface.
_4 . 27_ (metal path at 20% lower)
- COS of the measured angle _0_._7071_ = _3. 0193_ inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
_3. 92_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ =
_2 . 7718__ inches depth. l
- 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
_4 . 27_ (metal path at maximum amplitude point) squared = _18. 2329_ (a2) _2 . 7718_ (deptt at maximum amplitude point) squared = _7. 6829_ (b2) 4 a2 - b2 = _3. 2481_ inches of surface distance to the flaw from the transducer exit point. _235 . 5_ (Lmax) + 3 . 2481_ (surf dist) = _238. 7481 inches from 0" reference.
- 5) Determine S by picking the smaller of the following; j S = _2. 6587_ (result of 1) = distance between exam surface and the upper flaw tip j
>> OR << -
S = _5.160 (part "t") __ . 30193_ (result of 2) = _2.1407_ distance between the side opposite ) exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness. ,
_3 . 0193_ (from step 2) _2 . 6587_ (from step 1) = _0 . 3606_ inches. Determinat!on of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0. 0721_
Compare to S (from step 5) If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub-surface, a = 2a / 2 = _0.1803_ inches.
! = 0. 6 , (for all > 0.5, f = 2a) t = _5 .160_ (part thickness) a = _0.1803_ (surf oh circle one) S = _2.1407_
Page 2 7 of D Reportf 7"> "0/ MA 3 flawtrig (for parallel scans) Rev 0
~ internal Correspondence b ! oate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File Location subject Use of revised ISI calculation worksheets and correction for curvature GEAnm Eu m n ~ .sdnu. /wsw 7o b c t esuxe did &U l 97~0/01. k Tes.co.~ A N 4 0"' During the 1997 inspection of Steam Generator 22, weld W-A, several indications ffl? , x were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 Y to perform the flaw evaluation, it was determined by the level ill that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/t[fP l l new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scar. and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans. and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC. l
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Ccnsideration of the effect of the curvature of the vessel on depth determination for indicatbns Rrport ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 062Cd 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2M07 2.2218 ID 0.072,1 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 circ 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 cire 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 cire 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 cire 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3 8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Tha information provided above was developed in response to comments from the reviewer of the ISI uT calculation worksheets. Th3 original worksheets did not consider curvature when determining indication depth on the circumferential scans. Tha corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications.
*O kh. dd Thomas Jones Lvl lil Y
Tin Wan'ISI Program l(/Ingr llUk -L.) Y Ob O Jeff Ricker Supt M&SP f n., 15 _of 10
, rau 99*OASRl i
[ 2. Fl w if,imberISI Flaw Disp:sition Worksheet / g 3. Item Number 14fotal Number of Pages
- l. ISI Report Number WS h -0l$bl' 0 A* YO l _ f
- 4. ISIinterval % 04 Reviewer 5. Code Edition and Addenda FIOK Reviewer h/'
O second interval y third inte7al f{J)preservice O 80 W81 0 86 no addenda # 89 no addeAM O other
- 6. Acceptance Standard [OK lleview r i U A IWB-3510 ; O IWB 3512 O IWB-3514 O IWB-3515 O IWB 3516 0 IWB-3518 0 IWB-3522 f';]5IWB-3523 IWu-3511 O IWC-3513 O IWC-3514 O IWC-3515 O IWC 35(C/_ O IWC 3511 O IWC 3512 7.Cakulauons y OK Reviewer g h Ak(L 16 . 35 (Ud $[i M k q[ d .* .f ; 4 y 4 g"
% Tye : wwf-aa cplang g __ r go - , , , ,g<
. 0w= e. u .u w ,a. + 0. n Os k tb:c 4 +o la hicw-fn.u. ibo . ,
0'U Y = 6e o228 f7.- f.14 o Acud -fo 3 ,.1 2, Ytrm ~Iit.de TWS .3 flo -l - Il Nb /. f i-
/=C I
- - = - = 8. f ny=I o, 20 3,3 Y 0, /#r o .1c 3. 8 Y Eg cLumef?>v , 5in et & caladg,A ggwe[g 3,y cy, g, ,
W _ gccepfiddo , 4 ) "de
'l
.f a+ 3 . 3 7. f w 'f d c. x . .kGeck :.
A (
- 8. Results K OK Reviewer "
alt = 0* O calculated /t%= 3a 37 Code allowabl- /t %= 3. 3 7. < Y( % d 2 'I ~ laminar flaw surface area: (0.75 i+w)= f
- 9. Table used for analysis E OK Reviewer ___Af-Ci IWB-3510-2 O IWB 3510-3 O IWB 3511-1 O IWB-3511-2 O IWB 35121 1
)0 IWB-3510-1 O IWB 3514-4 0 (WB-3514-6 O IWB 3512 2 O IWB 35141 O IWB 3514-2 O (WB-35l4-3 ,
O IWB 35151 O IWB-3516-1 O IWB-3516-2 O IWB 3518-1 O IWB-3518-2 l O IWC 3510-3 O IWC 3511-2 O IWC-3512 2 I O IWC 3510-1 O IWC-3510-2 O IWC-3511-/ l O IWC-35131 l
- 10. Was knear interpolauon used? O yes jE no if no, why? bg CbCe/At en f 1
- 11. Was IWA 3200 Significant Digits For Limiting Values followed? 98 yes O nc O ' Reviewer I
- If no [' hy? _
- 12. The correct Code Edition and Addenda was available and used. JC yes Prepa:f 181 kOK Re hiewer 3
- 13. Statement of acceptability or rejectability with basts {0K Reviewer //
JGAccept. M (0/f) Code allowable 2(a/t)ct$ulated O Reject. O (a/t) Code lowab'e < (0/f) calculated O OEM flaw e luati a pandbook (se,e attached analysis)
- 17. A proved by date
- 15. Prepared by and date . Eng: u e ng review b and ate Ie 2 :. ,.. .,,..nw k % 3 ~J a wlvr rla wu as. s that vrm re 9 et amtihr ersbuuMy neds auy edewe not sppk i smins. somededs
~ -_r.
J6prumem worr enter of the ruseurIV that the remios sesithr mrthanksO tur verrte ennt m encorduwe orth Wscehlt amies.
\
ihr remhs are swrect en! the mesbushden nord a m sorcewdsms wsch a malprimrderre j War.a4k cemks sarmands vwerdcasamn walperradures uec%ms 4 .we/preurdwrr , Pa0e M . nf M I i) \ l N J VsNGMsNslFDw R0 DOC ts! Flaw Disposmon worksheet Revupoo O V , p -') . (yj ) Revision 104644l
1 e 1 4 ISI Flaw Sizing Werksheet' _ l
'#"D P7-o/ 3 (o .
T , 3 ,Z. @ f 4. IS11nterval 3DK Reviewer D/ 5. Code Edition and Addenda 2DK Reviewer fJ 6. Method W UT C RT O PT U MT C 2nd interval T3rd interval O preservice O 80 W81 0 86 r.m addenda 'W-89 no addends O other pK Revie er e p j 7 ,f ,ff 9 5 ___, r 7d%S p y
?
i O /. </5'
+
or l
- O.73 0 '
4 a Top View i Q. g dg e
' *3 Y $\
- e o. 'l4 l l
Side View 1;n. s O l 1
/
- 8. Calculations D'OK Reviewer 4. 7 Show detenrunation of surface or subsiirface hd 4 d ,
l Show deternunation of type of"a" to use
$d b &
- 9. ISI-FE 1 Paragraph 7.0 "Rowx!ing&JMethod"was used. hves Prepared " Reviewer l
- 10. Code Flaw Dunensions Ef 0K Reviewer 47 "i " = 0,f "a" = 0.,ffo95 "t,,, " = S~ lloo "t " = A /A "S" = l. /S~ "w" = N/A l
'!!.FlawType DeK Reviewer 9
/ Wubsurface PI T) O I,2minar(UT/RT) O Linear (PT/MT/RT)
O Surface Planar (UT/RD
- 12. Flaw Charactertration Figure ODK Reviewer Cf O IWA.33501 O IWA-3380-1 O IWA-3400-1 G IWA-33101 O IWA 3330-1 O IWA-3340-1 O IWA-3360-1 O IWA-3390-1
%IWA-3320-1 O Flaw 5
- 13. Flaw Ct rea,dion Figure Nurnber C Flaw 1 O Flaw 2 O Flaw 3 O Flaw 4
- 14. Was IWA-3300 Flaw Characto sion followed7%ves O no if no, whv' l , .
- 15. The correct Code Edition and Addenda was available and used. bes Pnma.MJ I&tfK Reviewer {7 a
- 16. Prepared by and date ( 17. Review by and date h $$ f ..
_ - - - . . . ~ . - ~ - .,are .-. . .. .. anedurable roda .Jads speespearnens and eeoeeswer spectncernenn endreaeosoes Page h0.f 70 Reporti PW3N--
~ WNN EIW ! -
l NSP O45NGNSN3fFSW1Lt DOC ISI Flaw Suung W 6h R..vuum i
. Fl w Sizing Calcul:ticna U2ing M tal Path for Vs:cci W:Ida > 2" Fcr curkca tnd cubsurf;cs cingla plinir ft:ws criant2d in plins n:rmit to praecure retaining surfIcs ASME SECT XI 1989 W/ NO ADDENDI A FT51. INITIAL TO VERIFY ISI Report #_97-0136 Evaluation Perfo ed By 'TN 6k/d Date: 2'I Flaw # 8 Datel 3 -lle-- 7 7 Reviewed By:
]Q-trw-~
] Length Length of the flaw "i"is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans. L and W values are from page ,___ of the UT report. (= -3 . 6 (W2) - -2. 9 (W1) = Einches. Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). This value is from page _,L _, of the UT report.
t" = _5 .160_ inches Calibration The measured angle in the calibration block was _45. O_ degrees l Calculations using metal path From page __ of the UT report, Scan # 3
- The flaw exhibited 20% DAC at _2. 05_ and _2. 53_ inches MP. Max amplitude is at _2. 29_ inches MP with the transducer exit point at -3.3 . inches (W) from the centerline of the weld and 159.5 inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
\ 1) Determine the upper depth of the flaw from the exam surface. 1 _2 . 05_ (metal path at 20% upper)
- COS of the measured angle _0. 7071_ = _1. 4500_ inches l depth.
- 2) Determine the lower depth of the flaw from the exam surface.
_2 . 53_ (metal path at 20% lower)
- COS of the measured angle _0 . 7071_ = _1. 7890_ inches depth.
- 3) Determine the depth of the flavr from the exam surface at the maximum amplitude point.
_2 . 29_ (metal path at may!;num amplitude point)
- COS of the measured angle _0. 7071_ =
_1. 6193_ inches depth.
- 4) Determine tne distance from 0* reference to the maximum amplitude point of the flaw.
2.29 (metal path at maximum amplitude point) squared = _5. 2441_ (a') _1. 6193_ (depth at maximum amplitude point) squared = _2. 6221_ (b2) V a'- b2 = _1. 6193_ inches of surface distance to the flaw from the transducer exit point. _159 . 5_ (Lmax) + _1. 6193_ (surf dist) = _161.1193_ inches from 0" reference.
- 5) Determine S by picking the smaller of the following; S = _1. 4500_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR S = _5.160_ (part "t") _1. 7890_ (result of 2) = _3. 371_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_1. 7890_ (from step 2) _1. 4500_ (from step 1) = _0 . 3390_ inches. Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0. 0678_
Compare to S (from step 5) If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the riaw is sub-surface, a = 2a / 2 = .,0.1695_ inches.
! = g (for all > 0.5, t = 2a) t = _5.160_ (part thickness) a u _0.1695_ (surf or ub su ,cir.::le one) S = _1. 4500 Page 3! of 70 Repstl D"4/3MI flawing (for parallet scans) Rev 0
Internal Correspondence b _ oate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 ] To File Location subject Use of revised ISI calculation worksheets and correction for curvature j
% Eu m n.~ .so u. /s.<rww ro & ct.e.suu u d OY j GMm 97-o/of. fa Tea. w ~ AAMcMc -l f- jp ? ,,$ M During the 1997 inspection of Steam Generator 22, weld W-A, several indications C#4 were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 N to perform the flaw evaluation, it was determined by the level lli that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/t k <
I new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% < DAC.
. The methodology to calculate depth is based on metal path and obviates the need ;
to convert screen divisions into depth relating the calibration block to the component. i l Ccnsideration of the effect of the curvature of the vessel on depth determination for indications l R? port ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 circ 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0'028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 l 8 3 cire 2.29 67.50 1.6193 0.0203 1.4500 1.4297 00 0.067'8 9 3 cire 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 circ 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 1 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 l 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 l 14 4 cire 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 circ 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 l 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 circ 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Th3 information provided above was developed in response to comments from the reviewer of the ISI uT calculation worksheets. Th3 original worksheets did not consider curvature when determining indication depth on the circumferential scans. Tha corrected valuas for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications.
'O 4 kaWrAf T G m hkr Thomas Jones Lvl Ill Tin Tran1SI Program l(ingr s -
Jeff Ricker Supt M&SP ed Pay % Ol]O Repotti WOON
ISI Flaw Disposition Workshett
- 2. F12w Number 3. Item Number 14. otal Number of Pages
- 1. ISI Report%) Number $ ~ O l } $ 'Y Y
^ ' 4.1S1 Interval @ OK Reviewer al -
f 5. Code Edition and Addenda M OK Reviewer if . O second interval J8 third int &rval O dpservice O 80 W81 0 86 no addenda A 89 no adden4 0 other
- 6. Acceptance Standard lKOK Reviewer J f*
O IWB-3514 O IWB4515 O IWB-3516 O IWB4518 l ,IC IWB-35 17 WB45tl O IWB-3512 l O IW B-35 O IWB 3523 O IWC-35 t l O IWC-3512 O IWC-3513 O IWC 3514 O IWC-3515 O IWC-35 0
- 7. Calculations % OK Reviewer ,Al W A$A Che$ TSX Y a.ta Q slovk& . ,( ,. g, (gg , ,p,33g 4% Tp- Ldcufw }hav % , c; in ' s = s. a.e 7 "
=
**'W = 0. 70 1 Os.5~ f $
ace. + +e 1.2 st b rnte-far.c H Aw , l A2 = O. 28'i1 % 0, O C's' 2 Kemd T0 -
- 7. l $ 0
- -fo c'. t 7,
?h ~ \ Abk 1WB - 35"lo - [
- SUN Q f =- l o,cc y. t y l=E-- A
= - Q,3
- o. 2s11 l
% chwa% , % u. Q- od udad g c a 4cr a km hv y. 4 7. . L(i ch a A cce ptdk .
8.Results gOK ReviewerQL. c/t = 0. CD calculate c/t W Ct 67 Code allowablic/t W t i 6 */. laminar flaw surface area: (0.75, ' ! a w) = tJA
- 9. Table used for analysis % OK Reviewer f)* O IWB4512-1 O IWB4510-3 O IWB451l-1 O IWB-35112
,C IWB45101 O(IWB4510-2 O IWB-3514 6 O IWB4512-2 O IWB4514-1 O IWB-3514 2 O IWB4514-3 O IWB 3514-4 O IWB 3515 1 O IWB 3516-1 O IWB-3516-2 O IWB45181 O IWB4518-2 O IWC-3510-3 0 IWC4511 '
O IWC4511-2 O IWC4512 2 O IWC4510-1 O IWC4510-2 O IWC-35131 i j
- 10. Was linear interpolation used? O yes fB no if no, why? h oACu/.A M [
- 11. Was IWA-3200 Significant Digits For Limiting Values followe5? JC yes O ro % OK Reviewer m* Ifno hy?
[2. The correct Code Edition and Addenda was available and used. JE yes Pre,her p OK R[hiewer N J l
- 13. Statement of acceptabihty or rejectabikty with basis J OK Reviewer #'.
f
' @ (0/OCode allowable 2(a/Ocalculated
)l0 Accept.
O Reject. O (c/OCode allowablef< 0/Ocalculated O OEM flaw evqluatioh dbook (see attached analysis) i Engio en y review by d date 17. Approved by and date l5. Prepared by and date
%& > gg The rymlLo art arrrGt malihr mothenUng nwelin M QGssWdant welk enwksuhle sunks mukak wreskennunw antarewedores 1
u4.q f evernsa g Nt M% r ska she er u urrec annithe orthenMugy
& a wnh App whk Guaitt skunkmb, ses[kar:= p_-Jprenwulerrn a 'L.k(%RT nus awrovalanaeres sku cilinvrabsst woth thuflaw so:mg <uniflaw Japewarem were aware of thr nacesury shut the vrain arnt the methtmlukogy are GwprCC pralin UCGordant wsth uppletable sus $rk enkmh mer & < ;nnipr<ne. bores We ~
$ b til 0
_ ,, ,, REYistON 10 *6 N l l N J \lsrJGNsNstFDWR0 DOC ($1 Flow Disposenoa Worluheet Revnion 0 Hep 0flI Y / N/ N /
- ISI Flaw Sizitg Wrrksheet' 1.151 Report N 2. Flaw Number 3. Item Number
- r. 4.131 Interval O ' Reviewer V) 3. Code Editmo and Aha FO ~ Reviewer 4d 6. Method gtJr O RT 0 2ndinterv rdinterval Opreservice O 80 Wsi O 86noaddends 89 no addenda O ather O IT O MT
- 7. Flaw Sketdi (NOK Rev6 ewer Front View f1
' e p 3, yy g h, 1
0 _4 ) l o.s798
- 2. ): j
~ ~
l Top View l h l.& PfM J Pl i 0.s'79 8 " l ?
~
Side View
! )
77'N eu F ~7 l l
/ ..
- 8. Calculations Gr'OK Reviewer 11 Show deternunation of surface or subsurface W[ W d l
Show deternunatirm of type of"a" to use hdL W
- 9. ISI-FE 1 Paragraph 7.0 " Rounding-Off Met!wd" was used. UrsPr arer viewer b
- 10. Code Flaw Dimensions Q.OK Reviewer L1 "t " =o.s'19s"a" = o .2s97 "t " = s.ito "t " = U/h "s" = 2. HW '",w" = U/k
!!.FlawType GOK Reviewer t7 O Surface Planar (tfr/RT) 7 SiiLSubsurface PIMT) ~
O 14minar(Ur/RT) O Linear (PT/MT/RT)
- 12. Flaw Characterization Figure ETOK Reviewer 4/
O IWA-33101 O IWA 3330-1 ~ O IWA 3350-1 O IWA-3380-1 O IWA-3400-1 MIWA-3320-1 O IWA-3340-1 O IWA-3360-1 O IWA-33901
- 13. Flaw Charactemation Figure Number O Flaw I O Flaw 2 5 flaw 3 O Flaw 4 O Flaw 5
- 14. Was IWA 3300 Flaw Charactemation followed? bes O no if no, why? , / _ .
- 15. The emect Code Edition and Addenda was available and used. %es Prepare % 1 @6K Reslewer #L .f //
- 16. rrepared by and date ( 17. Review by and date J .A 2 '$ c
- . - - _ . - . . , - . _ ~ -. - - .-. - .- . .w.
nwnteerson edomena*w. aprIweble.edes s**dede owtheanmoedpeorekres Page 34 of 70 R@ot!l O ~OUA E l NSP OMSNGrdSNSiFEWRI. DOC 131 Finw Sang Wostsheet R.msen 1 ' REVISION 11.!!.94 l
' 1
, Firw Sizing Czlculiti:na U ing Mr,tal Path for Vec2sl W:Ida > 2" t Far curfacs end cubsurfica cingb plin r flIws cri:ntId in plina normel to proxurs r;taining curfica f ASME SECT XI1989 W/ NO ADDENDK"Id INITIAL TO VERIFY ISI Report #_97-0136 Evaluation Performed By A M Date: I/2'l!?[
Flaw # 9 Reviewed By: L1 M __ Date: 3 -l% am ; Length l Length of the flaw "i"is determined by finding the difference between L1 and L2 for perpendicular scans, { W1 and W2 for parallel scans. L and W values are from page ___ of the UT report. ( = ,,. _t,. 8 (W2) - -1. 5 (W1) = ,,0linches. 1 Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). This value is from page _1__., of the UT report.
"t" = _5 .160_ inches Calibration The measured angle in the calibration block was _45. 0_ degrees i
Calculations using metal path From page __ of the UT report, Scan # 3 The flaw exhibited 20% DAC at _3 . 49_ and _4 . 31_ inchec MP. Max amplitude is at _3 . 85_ inches MP with the transducer exit point at -1. 6 , inches (W) from the centerline of the weld and _91.1 inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
- 1) Determine the upper depth of the flaw from the exam surface.
_3. 49_ (metal path at 20% upper)
- COS of the measured angle _0 . 7071_ = _2. 4678_ inches depth.
- 2) Determine the lower depth of the flaw from the exam surface. j
_4 . 31_ (metal path at 20% lower)
- COS of the measured angle _0. 7071_ = _3. 0476_ inches j depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
_3. 85_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ =
_2 . 7223_ inches depth.
- 4) Determine the distance from 0* reference to the maximum amplitude point of the flaw.
_3 . 85_ (metal path at maximum amplitude point) squared = _14. 8225_ (a2) _2 . 7223_ (depth at maximum amplitude point) squared = _7. 4109_ (b2) 4 a'- b2 = _2. 7224_ inches of surface distance to the flaw from the transducer exit point. _91.1_ (Lmax) + 2 . 7224_ (surf dist) = _93. 8224_ inches from 0" reference.
- 5) Determine S by picking the smaller of the following; )
S = _2. 4678_ (result of 1) = distance between exam surface and the upper flaw tip l
>> OR I S = _5.160_ (part "t") _3. 0476_ (result of 2) = 2.1124 distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness. !
_3 . 0476_ (from step 2) _2 . 4678_ (from step 1) = _0. 5798_ inches. I Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0.1160_
Compare to S (from step 5) If S is less than 0.4d, the flaw is surface. a = 2d + S = inches, if S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = _0. 2899_ inches. t = _0 . 5798_ (for all > 0.M t = _5.160_ (part thickness) a = _0. 2899_ (surf o6ub subircle one) S = _2 .1124_ Page M of 70 Reporti 77 *M/ flawtrig (for parallel scans) Rev 0 1
Intemal Correspondence b cate March 5,1997 i From Ad Hoc Evaluation Group Location CSC-2 To File Location subject Use of revised ISI calculation worksheets and correction for curvature
% Eumn ~ .s/*u /www ro b '*"" O"# l EA m 97-c/09. fg TomMMo+'* -ff 7W,? ,, he During the 1997 inspection of Steam Generator 22, weld W-A, several indications M were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 N to perform the flaw evaluation, it was determined by the level ill that the applicable 3/t[M worksheet (Figure 7) could be improved upon for these calculations. As a result, two ,
new worksheets were developed that have the following benefits; i
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference l between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans. !
. The level of recording in relation to DAC is corrected for flaws less than 100%
4 DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Consideration of the effect of the curvature of the vessel on depth determination for indications Report ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 circ 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 22218 ID 0,0721 8 3 cire 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 circ 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Tha information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. Tha original worksheets did not consider curvature when determining indication depth on the circumferential scans. Th3 corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on tha acceptability of the indications. N
- s. 1llkT -b '
M Thomas Jones Lvl Ill Tin Tran'ISI Program l(Ang' r Jeff Ricker Supt M&SP fue % of__? 0 l Reporti W'O
i j ISI Flaw Disposition Worksheet j
- 3. Item Number j
- 1. ISI Report Number en 97 - o t 3M 2. Ft1w Nu"}"*r 10 SA 40 l 14.?'tal Number of Pages I M-i 4.151 Interval R OK Reviewer F g 5. Code Edition and Addenda $ OK Reviewer (
O second interval JB third inter ral O _freservice O 80 W81 O 86 no addenda B 89 no addenia O other j
- 6. Acceptance Standard ROK Re twer A '
N IWB-3 1 Q lWB-3511 O IWB-3512 O IWB-3514 O IWB-3515 O IWB 3516 0 IWB-3518 OIWB3 3 O IWB 3523 O IWC-3 1 O IWC-3511 O IWC-3512 O IWC-3513 0 IWC-3514 0 IWC-3515 JM '
- 7. Csiculanons /S OK Reviewer b tLMCl14d Id -Tlp) g.,
g y Q g ,, f , j" n W ft NhV C. Ant 2 r ~~ & - C fln " f ,,,4(gg" - l 4 6'_2Cl 0 '//SE Acun tt' }o 0, J/.2 l 4 =.c o OCe- -i- '5D I1 %LhS~tWhCC fug ; h- g o. 2rl 0' 0 5 AM b f '17 C llo ! h TitWe IWA - 3 r to -- i , M #z 1. W)$
- c. 40 C8Y y = [S = -
g,
= l. 2 -Q- y=l l
0 'X 4. + Y 0 EMY I CM h L 4! tultt}e d y (c 4, q g w/u'c4 O N 4'ad C~4% . In cc can a g agg{c . 8.Results k OK Reviewer f/ c/I = De f 2 calculated /t %= 4<i7 Code allowabk c/t %= G 87. 4 #)e% < 6 'f % laminar flaw surface area: (0.75j (
- w) = rdA
- 9. Tcble used for analysis J1OK i Reviewer Afi 1 Cl IFB-3510-2 O IWB 3510-3 0 IW B-3511-1 O IWB 35112 O IWB 3512-1 Jil IWP-3510-1 O IWB 3514-4 O IWB-3514-6 O IWB-3512-2 O IWB-3514-1 O IWB-3514-2 O IWB 3514-O IWB 3515-1 O IWB 3516-1 O IWB 3516-2 O IWB 3518 - O1 B-3518-2 O IWC-3510-2 O IWC-3510-3 O IWC 3511 O I 'C 35112 O IWC-3512 2 O IWC 3510-1 O IWC-3513-1 I
- 10. Was linear interpolation used? O yes jB no if no, why? /
11.Was IWA-3200 Significant Digits For Limiting Values followed? lE yes 0 :1 ) % o6Eep[-twn OK Reviewer [M Ifr ,why? 12.The correct Code Edition and Addenda was available and used. Al yes Prepfer N f OKIkeSiewer M
- 13. statement of acceptabiiity or re;ectabiiity with basis g OK Reviewer y.
pAccept. % (a/t) Code allowable 2 (0/f) calculated a/t) calculated l 0 Reject. O (a/t) Code allowabicy$yandbook (see attached analysis) j O OEM flaw eval 1atich 3
- 16. !.ngmte g review by d dat 17. Approved by and date
- 15. Prepared by and date m(,m qrw a 2ro g / '
4 - C L 4/rLe/ Thu 9ppermalaums then all ener>Ived wnth shosjksw a:r.nr wdflaw a everu uu s shun er its an u I welihr matkukup Jgwekm am ownre of the owcuanor the shr rmhs an!he meshankaroxy av currect malin accuseJewe wuh appinuble sales, Thr mulu av surrves ont shr matkuksuy n=<lis un assaraust woch smsa enkens wnh applicable cenirs. .mnM ms oniprwesims apohschte senirs sn '.-." sporrkurauns meripewwenhorvs u j wale.. . : .s Pace U of 70
, , , q-) .,3j y j y REvistoN l@ed l
( ( N JMSNGNSNSIFDW RO DOC isi Fis. Disposinon worksheet Revision o - - - ~ nupar l
i- , 1 JISI Flaw Sizing Werksheet : *' '
- 1. ISI Report N 3. Haw Nunmer 3. Item Number
- 4,151 Interval CFOK Reviewer 67 3. Code Editaan and Adoenda GDK Reviewer f7 6. Method B UT C RT O 2nd interval Wrd interval O preaemce O 80 W81 O 86 no addenda %89 no addenda u other O Fr O MT ;
Of j
- 7. PDK Reviewer 3, f3-g 8 g
** b E
0,5D 2 j y e-t ,sys f i C ! i Top View et
+3eN N A o,4,'k I
Side View I 11 j l
/ ..
l B. Calculations G'OK Reviewer Ll j Show determination of surface or subsurface 68d 4 Show detemunation of type of"a* to use b 0$ L
- 9. ISI-FE 1 Furagraph 7 0 Roundme-Off Method" was used 9 y:: Preparer Reviewer
- 10. Code Flaw Dunensions 0"OK Reviewer t 'l "t " = 0 6," "a" = oopsi " "t " = 5;tW"t, " = Al/A "s" = 1. sss sl,i"w"= i)/k d
11.FlawType GOK Reviewer i1 Pubsurface PlanahT) 0 larninar OJr/RT) O Linear (PT/MT/RT) 0 Surface Planar (UT/RT) "
- 12. Flaw Charactenzation Figure GdK Reviewer f' )
O IWA-33301 ~ O IWA 3350-1 O IWA 3380-1 O IWA-3400-1 O IWA 3310-1 O IWA-3340-1 O IWA-3360-1 O IWA-3390-1
- 5. IWA-3320-1 O Flaw 2 O Flaw 3 O Flaw 4 O Flaw 5
- 13. Flaw Characterization Figure Number E Flaw 1
- 14. Was IWA-3300 Flaw Charactenzation followed? Ryes O no trno, whv7 r / s
- 15. ne correct Code Edition and AdA-ada was available and used.*'Bhres Preparer % .) Gr'OK Reviewer pr i
- 16. Prepared by and date 17. Review by and date 4
The rendu are servert and he methodolog eued te in areerdance wesh opplienble nodes, standards. Thu renew asawes shes the re edu .ru servert est the methodolev eued u m ereerdance with apudteoNo eodor standards nweo_4earles andoe-eneseu awe.neernsne andreoreanen lPa;e 38 of 70 f Reportl D~GM) R.EYlSICN 11-11-9a] l NSF OMSrJGtJSNSIFSWKl DOC ISI Fhe Sane Wortsheet Revineon 1
. a
_ _ _ . . - . _ _ . . _ .~ _ __. . . _ _ . __ ___ _ _ - __ _
, Firw Sizing CElculstiona U2ing M3tal Path far VcOstl Walds > 2" Fcr curfica cnd cubsurfac2 cingin plin r ft:ws cri:ntId in plina n:rmil to prenure retaining surfica ASME SECT XI 1989 W/ NO ADDENDAYIINITI TO VERIFY ISI Report # 97-0136 Evaluation Perfo ed B a & GA// Date: N Flaw # 10 Reviewed By: c2 Datei 3-k 77 Length i Length of the flawY is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans.
j L and W values are from page ,_ of the UT report. l t = -4 . 2 (W2) - -3. 6 (W1) = . 0. 6 . inches. , Thickness i i Thickness of the component at the location of the flaw, using UT or nom wall (circle one). l This value is from page ,,,1,_ of the UT report. ! ] "t" = _5 .160_ inches l Calibration The measured angle in the calibration block was _45. 0_ degrees
- Calculations using metal path From page ,_ of the UT report, Scan # 4 j The flaw exhibited 20% DAC at _4. 39_ and 5.1 inches MP. Max amplitude is at _4 . 87_ inches MP i J with the transducer exit point at -3._9 inches (W) from the centerline of the weld and _6Ainches (L) ,
from the 0" reference. (Use of 20% DAC vs. 50% max amp for indicatione > 100% DAC is conservative.)
- 1) Determine the upper depth of the flaw from the exam surface.
_4. 39_ (metal path at 20% upper)
- COS of the measured angle _0. 7071_ = _3.1042_ inches depth. ;
- 2) Determine the lower depth of the flaw from the exam surface.
5.1 (metal path at 20% lower)
- COS of the measured angle _0. 7071_ = _3. 6062_ inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
__4 . 87_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ =
3 . 44_36, inches ciepth.
- 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
_4 . 87_ (metal path at maximum amplitude point) squared = _23 . 7169_ (a2) _3. 4436_ (depth at maximum amplitude point) squared = _11. 8584_ (b2) 4 a2 - b2 = _3. 4436_ inches of surface distance to the flaw from the transducer exit point. 6 . 9 (Lmax) _3. 4436_ (surf dist) = _3. 4564_ inches from 0" reference.
- 5) Determine S by picking the smaller of the following; S = 3.1042_ (result of 1) = distance between ex.am surface and the upper flaw tip
>> O R <<
S = _5.160_ (part "t") _3. 6062_ (result of 2) = 1. 5538_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_3 . 6062_ (from step 2) _3 .1042_ (from step 1) = _0. 502_ inches. Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0.1004 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = ,_0. 251 inches.
! = 0. 6 . (for all > 0.5. t = 2a) t = _5.160_ (part thickness) a = _0. 251_ (surf orQcircle one) S = 1. 5538_
Page 39 Of D Reporti N ~013 M ) flawtrig (for parallel scans) Rev 0
internal Correspondence b
- cate March 5,1997 From Ad Hoc Evaluation Group t.ecation CSC-2 To File t.ocation
- subject Use of revised ISI calculation worksheets and correction for curvature G Eumn~ - .sh u. /ww re & ctenuk: Wed *Ce GMm 9 7-c /o f . fpr. Ts.co,~ AAMom (7W,*,*
[#M During the 1997 inspection of Steam Generator 22, weid W-A, several indications were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 to perform the flaw evaluation, it was determined by the level lll that the applicable 3/t[f7- . worksheet (Figure 7) could be improved upon for these calculations. As a result, two new worksheets were developed that have the following benefits; ~
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Consideration of the effect of the curvature of the vessel on depth determination for indications Riport ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 circ 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 cire 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 circ 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 cire 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 cire 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 circ 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 cire 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 circ 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Th3 information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. Tha original worksheets did not consider curvature when determining indication depth on the circumferential scans. Tha corrected values for "S" were reviewed against the calculations for surface proximity and value for 'Y" and found to have no impact on the acceptability of the indications. A dd Thomas Jones Lvl lli f Tin Tran'ISI Program l(ingr 1hkT W Mk Jeff Ricker Supt M&SP Pa;e YO ofM _
, VeportI WOIYE
t
- ISI Fltw Dispo!!! inn Worksheet
- 2. Fl2w Napber 3. Item Number 14.fot:.1 Number of Pages I
- 1. ISI Report Number Pf.1 di- Ol; /f h h 62 +0 .i j
- 4. lSl lnterval SOK Reviewer J f. // 5. Code Edition and Addenda R OK Reviewer Mi l O second Interval S third inturval Qfreservice O 80 W81 0 86 no addenda E 89 no addendi O other
- 6. Acceptance Standard ROK R'evi er X-O IWB-3512 O [WB-3514 O IWB-3515 O IWB-3516 O IWB-3518 IB IWB-35! @ IWB-3511 O IWB-35 0 IWB-3523 j 7
0 IWC.L 0 0 IWC-3511 O IWC-3512 O IWC-3513 O IWC-3514 0 IWC-3515 i l
- 7. Calculations NOK Reviewerm-
% ttt the A DEE %e Sdg Warbhat { = 0, 9 " (= 0,/gg" !
W Ty
- Subs &a llxnor -(, = r, /6v " t : -C. llW L 0' 194</ Kav, A 0 M 'l "
- 0. o2 I 4 o -fo 0 eL2 y l
i 7: O' 4 E/t/n-Re.c + io l .2. ca c*e.-[n at 714.o . , i T.7If) 0.\Wf - 46-E = C.Iio
= 0. 0 8 t 9- Dw> d -fo 3. 4 %
Trnv Table. L) 6 - K to - ( ,
. I / f)
%3l6lAt Y Yt'l. s 0,8/32
~
0, to 3,3 y *
- o. SOM 0 ir 3 s >' _
o.1989
=
4.I m y-g , 1 i
, ft
- 3. Results %OK Reviewer #l 3 alt = 0.AA calculated /t %= 3.d7*
Code allowabl c/t %= 3. G 4 N, d E 8 7a laminar flaw surface area: (0.7,5 t+w)= id , l
- 9. Table used for analysis @ OK Reviewer /A O IWB 3510-3 O IWB-35111 O IWB 35tl 2 O IWB-35121 l 21 IWB 3510-1 ~ }/ lWB 3510-2 O IWB 3514 6 C IWB-3512-2 O IWB-3514-1 O IWB-3514-2 O IWB-3514 3 O IWB-3514-4 O IWB 3515-1 O IWB-3516-1 O IWB-3516-2 O IWB-35181 O IWB-3518 2 O IWC 3510-2 O IWC-3510-3 O IWC-35111 O Iw/-3511-2 O IWC 3512 2 O IWC-35101 O IWC-3513-1 j //
l0. Was imear interpolanon used? O yes jl9 no if no, why? A g g- % g
- 11. Was IWA-3200 Significant Digits For Limiting Values followcc? jiD yes O 8OK Reviewer /M
- Ifp , why?
12.TI e correct Code Edition and Addenda was available and used. jib yes Prep er 'TWToKR viewer [ M. I
- 13. Statement of acceptability or rejectability with basis % OK Reviewer y/ s Accept. O (a/t) code allowabfe 2 (0/0 calculated
( / Code allowab:e <(a/f) calculated l Reject. 2 E OEM flaw ebluat on handbook (s_ee attached analysis)
.E, necrmg review b an date 17. Approved and date
- 15. Prepared by and date
( ' f l h[rkO > oL -.El ~.,, ~ .N,.k9T
. -.~
a ar/n-- , ... - .n.. M. .. .. -,-e.-,..m.- nonethenkduc saw sterect and in <wcseskare wnh nWicubk sanics The realu ww neerrt welthe merhunkdry emed Ja m acenthuse moh uses b (exMt enh vn o bk s ks. 20enkath enksvir w%rrws auf pan enberes upptwahk suarn .stmakedt weernamnru mnipwere bores .mors?4 knu boml erem enhore, kA . P2"* h/ nf 70 I _ _,, , , , RD IslON 10 404 ) l N J V5NGNsNstFDwRO DOC ISI Fisw Disonsinoe worksham Revnion%/ l @Dil 9 / J ' r//.WK.,1 l.
l l l Surface / Embedded Flaw Demarkation Une 0.13 Embedded Flaw gg ___ 4 _ 8" 8*N" , 4 ABOVE THIS LINE ARE 0.12 NO* ALLOWABLE 0.11 6?i 5 -- .. 10, 20, 30 yrs.
~' E 0.1 . '7' - -
0.09
~ -
E :-- -s- = E .08 0 _a_ :: 3: .'
$ 41urface - .
12- 0.07 j i Fiaw. In thle , O j Region Must be H
.T 6O 0.06: {=cenehd Eurface Flaws L
-~;'
, . _ j 3 _'
- i
- 0.05 a _.
I ' 0.04 =
\
b ,fl1
- ALL EMBEDDED FLAWS l
( N Tiils SIDE OF l 0.03 DEMARKATION LINE) ARE ACCEPTABLE PER CRITERIA OF (WB 3600 0.02 ' AS LONG ASIn/tso.25 0.01 g 0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 db 0.225 0.25 Distance from Surface (6/t) g"" Y5*.699*,gogyn cus .L9 54'4 ,
-: (, p gh t " -f*,d4f
.i 6.5 v . 4 @ ,,
ue -2.4 Flaw Evaluation Chart for tne Tubesheet-Channel Head Junction for Frairie Island Units 1 and 2 X Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X Circumferential Flaw D Q a d W 1 1
- Q l h , F I w P F il , 0 . k. ho .YY A2-7 ;
1299w.wpf:1b/011995 _ Pap Y2- of 70 b Od w, v-onca j - -
. E LISI Fhw Sizing Werksheet
- 1. ISI Report N 2. Flaw Number 3. Item Number
. - 4. ISI Interval
- Reviewer 6J/ 5. Code Edition and Addenda DDK Reviewer f/ 6. Meunt 5.Ur O RT C 2nd' 3rdinterval Opreserwce O 80 WR1 0 36 no addenda 1749 no addends' O other O FT O brr
- 7. Flaw S (70K Reviewer if 9y, ["y r j ..
b a , -,_ g
. _ ' ~ o . SOU/ gh y-- -
m O,31 Top View
/r-3.9M 4
gm y ara
- I n
Side View l l M &
- 8. Calculations IS OK Reviewer _ t1 Show detemunation of surface or subsurface
$dd A d Show determination of type of"a* to use hd$ & $
- 9. ISI-FE-1 Paragraph 7.0 "Roundingoff Method" was used. b Prepare % -IPDK Reviewer #[ f _ (
- 10. Code Flaw Dimetmions OtK Reviewer (# g g t/'4 h J "t " = f , 9 ' "a" = y f f ** u f n=g Q uf_ n= u$n = uyn= gll
- 11. Flaw Type D'OK Reviewer d 21 0 Surface Planar (UT/RT) 9iF6ubsurface Planar . D D Laminar (UT/RT) O Linear Wr/MT/RT)
, 12. Flaw Charactenzation Figure D'OK Resiewer ij O IWA-3310-1 O IWA 3330-1 O IWA-3350-1 O IWA4380-1 O IWA 34001 5JWA 3320-1 O IWA 3340-1 O IWA-3360-1 O IWA-3390-1
- 3. Flaw Charactertzation Figure Number O Flaw 2 O Flaw 3 O Flaw 4 O Flaw 5 W. Flaw I
- 14. Was IW A-3300 Flaw Characterization followed? %es O no if no. wbv7 r
- 15. The correct Code Edition and Addenda was available and used. Wves PrmareFTA J DDK Reviewer C1
- 16. Prepared by and date 17. ReWew by and date
$*bI'9]
WQ g ra.--...--~.-._
}l2 yff 7 w
~,,,ioc.u.
f..),
.a.. ,,.a.a. ,,, nc .
.,a n,n.
,,,.c.p. n.s Page N # 70 Report s 97 -o/ 5GM uvision ii.ir.9B Inseossucusustrswat ooc ism smw uw n
Fitw Sizing Calculttions Using M tal Path for Vcaasi Waldz > 2" Fcr curfics End cub;urfres tingl3 plinir fliws crianted in plins nrrmil ta prexurs retaining curface ASME SECT XI1989 WI NO ADDEND INITIAL TO VERIFY , ISI Report #_97 0136 E/aluation Performed By.[& M Date: l Flaw # 11 Reviewed By: E' Ah~ 'Date: 3 - tt- 9 7 ; l Length ' Length of the flaw "l"is determined by finding the difference between L1 and L2 for perpendicular scans, i W1 and W2 for parallel scans. ,, L and W values are from page __ of the UT report. t = -4 . 4 (W2) - -3 . 5 . (W1) = _0A inches. 1 Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). This value is from page _1,,_,, of the UT report.
"t" = _5.160_ inches Calibration !
The measured angle in the calibration block was _45. O_ degrees , Calculations using metal path From page __ of the UT report, Scan # 4 The flaw exhibited 20% DAC at _1.15_ and 1. 70, inches MP. Max amplitude is at _1. 49_ inches MP 1 with the transducer exit point at -3. 9 inches (W) from the centerline of the weld and ,_73. 8 inches (L) from the 0* reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
- 1) Determine the upper depth of the flaw from the exam surface. l
_1.15_ (metal path at 20% upper)
- COS of the measured angle _0. 7071_ = _0. 8132_ inches !
depth.
- 2) Determine the lower depth of the flaw from the exam surface.
_1. 70_ (metal path at 20% lower)
- COS of the measured angle _0. 7071_ = _1. 2021_ inches depth.
- 3) Determine the depth of the flaw from the exam surface at the rnaximum amplitude point.
_1. 49_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ = ,
_1. 0536_ inches depth. ,
- 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
_1. 49_ (metal path at maximum amplitude point) squared = _2. 2201_ (a') _1. 0536_ (depth at maximum amplitude point) squared = _1.1101_ (b') V a'- b' = _1. 0536_ inches of surface distance to the flaw from the transducer exit point. _73. 8_ (Lmax) _1. 0536_ (surf dist) = _72. 7464_ inches from 0" reference.
- 5) Determine S by picking the smaller of the following; S = _0. 8132_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = _5.160_ (part "t") _1. 2021_ (result of 2) = 3. 9579_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_1. 2021_ (from step 2) _0. 8132,,,,(from step 1) = _0 . 3889_ inches. Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0. 0778 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub-surface a = 2a / 2 = _0.1944_ inches.
!= 0.9 (for a!! > 0.5, t = 2a) t = 5.160,,,(part thickness) ,
a = 0.1944_ (surf o circle one) S =M O . SOdp g 3 Repostl 9~I'#A35#E flawtrig (for parallel scans) Rev 0
1 Internal Correspondence b cate March 5,1997 l From Ad Hoc Evaluation Group Location CSC-2 To File tocation subject Use of revised ISI calculation worksheets and correction for curvature . G Eu m ri.~ .s h t. t. /wm re & ' l *s"M W'" ' # 4 GMm 97-o/01 fg Tes.co.~AAMom ( yW,*,* Y,Y/ne During the 1997 inspection of Steam Generator 22, weld W-A, several indications # were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 M to perform the flaw evaluation, it was determined by the level til that the applicable 3/t[t7-worksheet (Figure 7) could be improved upon for these calculations. As a result, two new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Consideration of the effect of the curvature of the vessel on depth determination for indications Riport ind # scan type Max MP Radius surf dist dj prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 , I 7 3 circ 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.072,1 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 circ 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 l 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 cire 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 circ 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 The information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. Tha original worksheets did not consider curvature when determining indication depth on the circumferential scans. Tha corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. 4 k nh M m hkr Thomas Jones Lvl ll1 Tin Tran'ISI Program 14ngr s L eh@ Jeff Ricker Supt M&SP
, me 'l5 of30 Repott1 00 $$ k
j . ISI Flaw Disposition Worksheet /
- 14. otal Number of Pagas 1.151 Report Number 3 Item Number l
W"00h y/L Flaw Numbef lcS 0
- I
.. & il ,
- 1. ISL interval Al OK Reviewer Al' 5. Code Edition and Addenda M OK Reviewer #M O second interval E third interv)I O prp rvice O 80 W81 0 86 no addenda E 89 no addendh O other
! 6. Acceptance Standard R OK Revi er a B IW B-35 O 148 3511 O IWB-3512 O IWB-3514 0 IWB-3515 O IWB-3516 O IWB-3518 j O IWB 35: O IWB 3523 0 IWC 3511 O IWC-3512 O IWC 3513 O IWC-3514 O IWC-3515 O IWC-34
- 7. Calculations % OK Reviewer rf.
li
% dtached IsE =F(a40 mg myL.aaf. , j = p, g " . a , p, y 77 "
% Tyyt %%w0a }{mw -fm - s , /to " J.- o, 9519" A o*244c
[= , .:- O . 41 K Atwd -{v o. 4/ (Lse- + -fu I1 Su hsur$ta- 4~la>0 : A o , MT5' - 3 %= C /6o
= 0. o 4 80 Levnd fo 4.s'9. ;
"N ~let.Mc. .Th)8 - 3 51o - ( ' l Y Yb ya .c
=
0, 9 971 = 40 =>y=1
- 0. kQ f 0 Af W 0K t.Ty N 0"*h
- Wu- Y Weddd sgud, 4,ty, whett. ;
hb C47 . Laexhm 6 &qtdk .
- 8. Results [OK Reviewer ld O, f [ j l c/g -
calculated c/t %= 4,87o Code allowablfc/f %= C 814 Yf 7. <. 5 i N-laminar flaw surface area: (0.75 p ( a w) = Nd
- 9. Tabic used for analysis GKOK Heviewer /J .
'd IWB 3510-2 O IWB-3510-3 O IWB 35111 O IWB 35 t l.2 O IWB 35l21 JB IWB-3510-1 O IWB 3514 6 O IWB-3512 2 O IWB-3514-1 O IWB-3514 2 O IWB-3514 3 O IWB 3514-4 O IWB 35161 O IWB-3516 2 O IWB 3518- O IWB 3518-2 O IWB-3515-1 0 !WC-3510-3 O IWC 35tl O IWC 35112 O (WC-3512 2 l O IWC-3510-1 O IWC-3510 2 O IWC-3513-1 / l
- 10. Was linear mterpolation used? O yes Ji2 no 11 no, why? Ob gg(VA g If n hy?
l l OK Reviewer 91 -
- 11. Was (WA-3200 significant Digits For Limiting Values followca? Jii2 yes O no [N .
j 12.The correct Code Edition and Addenda was available and used. JE yes Prepa , r %OK Reviewer *
- u. statement oracceptabiiity or rejectabiiity with basis jaOK Reviewer _ m-JG Accept. )9 (0/I) Code allowable 2 (0/f) calculated i
O Reject. O (c/t) Code allowable f *c/t) O OEM flaw evaluatiorf bcok (see, attachedcalculatedanalysis)
- 16. ngmei n review by ' d da' 17. Approved by and date
- 15. Prepared by and date
%%7 7 .a x j ef r ad she erthankang d -- @ 9 7 Thss appronst asmres sku all bnwolved weak tins)h* a:mg adflaw upuutsem nwrw uwerr ofthe owsisary thus the rvalts welthe Tho weo as thusihr pr' lu e meshumbduuv are unruva asJ m ammkone wooh 4pikuste orks, nun os nanasnowe moth nauble caern sommheds.
The owelu er owred est she ortheshden mwd a m enombnme enh .. y m .wo wn/prrar.hsres pri nhatam ud tvemeihnes ,,, tyy/mahdr u= Jet samakserA scre:*/lcuneewom/premedares
'7 b nf h")
/ y YaQt p,.,g ) Q.yjg) luiViSION 10 :6 94 }
l N J MSNGNSNSIFDwR0 doc 151 Flaw Desposuson worksheet Revraion 0 j
- ISI Flaw Sizing Wcrksheet .
1.131 Raport N 2. Raw Number 3. Item Nuadwr r" 4.ISIInserval ElOK Reviewer 'E.) 5. Code E4 tion and AMenda ETOK Reviewer 4/ 6. Method E. UT Q RT O FT O hrr C 2nd u' serval Wrd interval O preservice O 80 W81 0 86 no addenda %89 no addenda O other
- 7. Raw Sketch GT'OK Reviewer Front View ff p C) 3,6 Th y" y 4 y
oe 999f D T t~ 4 Os i Y a. I Top View l l @M ~ eo.c,4 i i l Side View I , L KTM ea 1 e l [ ..' 4
- 8. Calculations li!f0K Reviewer 't 7
, Show detemunation of surface or sutiurface l i (68 @ Show deternunation of type of"a* to use f l f6[ G
- 9. ISI-FE.1 Paragraph 7.0 " Rounding-Off Method"was used. Ues Prepare %r EfbK Reviewer O
- 10. Code Raw Dirnensions Ef0K Reviewer T1 i "t " - ce c "a" = o e 2 Mis "t " = s.lW"t " = a /A "s" - o e 91m ? "w" = a/#
- 11. Raw Type GkOK Reviewer i 'l
~ Wubsurface PlanarhT) O bminar(tJT/RT) O Linear (FT/hfT/RT)
O Surface Planar (UT/RT) "
- 12. Raw Characterization Figure OOK Reviewer i7 O IWA-3330-1 O IWA 3350-1 O IWA-3380-1 O IWA.3400-1 O [WA-3310-1 95-IWA-3320-1 O IWA.3340-1 O IWA-3360-1 O IWA-3390-1
- 13. Raw Characterization Figure Number O Raw 2 O Raw 3 O Raw 4 O Raw 5
% Raw 1
- 14. Was IW A-3300 Raw Characteruation followed? Gves O no if no. whv7 ,
- 15. The correct Code Edition and Adh was available and used. %es PrepareFYA*.- 3 VOK Reviewer O
- 16. Prepared by and date 17. Review by and date
- a 1%s rence asaaes that she results are carrect and the meshodology used is in aesw4eace mth The realta m eenet and the neeokoJology used to be areordance wnsh appheeblo eodes stand.vds.
appheable coder mandards geenMeeno u andnew Ares e er_Meenene medprocea,res lPage Y7 Of 70 ma n-onu) REvlstON tI-tl 84 l l N3P CN5NGNSNSIFSWRI. DOC ISI Fine sums Worksheet Reesion :
FI;w Sizing Criculiti::n2 Using M tal Path for Vc;c:1 Wrlda > 2" Fcr curf;c3 and subsurfica singla plinIr iliws ori;nted in pt:na n:rmil to prerure r:;taining eurfica
.ASME SECT XI1989 W/ NO ADDENDAM INIT L TO VERIFY ISI Report # 97-0136 Flaw # 12 Evaluation Performed B ,, Date:
Lb 9 7
/!f7
, Reviewed By: 8. d , w Date: Length Length of the flaw ","is determined by finding the difference between L1 and L2 for perpendicular scans,
- W1 and W2 for parallel scans.
- L and W values are from page __ _ of the UT report.
t = -3 . 7 (W2) - -3.1 (W1) = _02 inches. Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). This value is from page 1.,,_, of the UT report.
"t" = _5 .160_ inches Calibration The measured angle in the calibration block was _45. 0_ degrees Calculations using metal path From page _,,_ of the UT report, Scan # 4 The flaw exhibited 20% DAC at _1. 40_ and _2.10_ inches MP. Max amplitude is at 21 inches MP with the transducer exit point at -3. 4 inches (W) from the centerline of the weld and _95.1_ inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
- 1) Determine the upper depth of the flaw from the exam surface.
_1. 40_ (metal path at 20% upper)
- COS of the measured angle _0 7071_ = _0. 9899_ inches depth.
- 2) Determine the lower depth of the flaw from the exam surface.
_2 .10_ (metal path at 20% lower)
- COS of the measured angle _0. 7071_ = _1. 4849_ inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitudo point. ;
_2 . 07_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ =
_1. 4637_ inches depth.
- 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
_2 . 07_ (metal path at maximum amplitude point) squared = _4. 2849_ (a2) _1. 4637_ (depth at maximum amplitude point) squared = _2.1424_ (b2) 9 a2 - b2 = _1. 4637_ inches of surface distance to the flaw from the transducer exit point. _95.1_ (Lmax) _1. 4637_ (surf dist) = _93. 6363_ inches from 0" reference.
- 5) Determine S by picking the smaller of the following; S = _0. 9899_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR S = _5.160_ (part "t") _1. 4849_ (result of 2) = 3. 6751_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_1. 4849_ (from step 2) _0. 9899_ (from step 1) = _0 . 495 , inches. Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0. 099 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = _0. 2475_ inches. t = , 0. 6.. (for alt > 0.5, f = 2a) t = _5 .160_ (part thickness) S = _0 . 9899_ a = _0. 2475_(surf oQircle one) rage 99 nf 20 flawtrig (for parallel scans) Rev 0
Internal Correspondence b
~ oate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File Location subject Use of revised ISI calculation worksheets and correction for curvature 7.si 5 Eunwn~ .sowl. /s uww ro Ay ctesud We d W4 GAem 97-e/o?. fpr in. con AAMo+'m (yWp? , x Duarg the 1997 inspection of Steam Generator 22, weld W-A, several indications #
were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 N to perform the flaw evaluation, it was determined by the level ill that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/tk new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by th new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
) Consideration of the effect of the curvature of the vessel on depth determination for indications Rtport ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.ad 97-0136 6 3 cire 6.42 d7.50 4.5396 0.1556 0.6204 0.7760 ID 0.002c 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 circ 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 cire 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1.2144 1.3226 I; 0.0735 l 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 Oc 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 The information provided above was developed in response to comments from the reviewer of the ISI uT calculation worksheets. Tha original worksheets did not consider curvature when determining indication depth on the circumferential scans. Tha corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications.
&Thomas ]mAWrA1 Jones Lvl lli M % % h% s Tin Tran'ISI Program 14ngr
-aad Jeff Ricker Supt M&SP Page M 7 of '7 6 ^ "I Rco:ti WC'AW '
1
. l
! / ISI Flaw Disposition Worksheet jf 1,ISI Report Number il 2. Flaw Hymber 3. Item Number l 13 6440 14.Mtal Number of Pages I i Pra 4't - ol3 Ql 5. Code Edition and Addenda jl(OK Reviewer M-( 1.lSlinterval K OK Reviewer JUi O second interval E third inte val O areservice O 80 W81 0 86 no addenda E 89 no addendii O other l 6. Acceptance Standard SOK Reviewer h O IWB4515 O IWB-3516 O IWB4518 I B IWB-351( 0 IWB4511 O IWB-3512 O IWB4514 ! O IWB452 O IWB45i3 O IWC-351 I O IWC-3511 O IWC-3512 O IWC4513 O IWC4514 O IWC4515
- 7. Calculations gOK Reviewer F 4" D1 tlLO %)c yiCl,iggh : f ; g, y " 4 .::- g, y J "
~
h Tyct Meurpa_ }/stnae %: E uc / :- # . -W I A 0. 2 / J.2. . 0, 2c
~= c d.303l kt un a -fo 4 0. Y 4 +o ta r.ul cur % a Yleuo :
i use_ A " o. aiu .
-t -
- O O f ft dcund ~/o e/.
t ( 9. i
- 7. I b o Trew Tetd ~Q 6 - 3Clo -I :
N -Yb* C = 2 A(2P 10. y ny=) J' = L
=
0 30 .q. f y or 20) 2 1 MW , Wu '/t ed ud a}ed y ds 4e/ 7. ist& &
- WA 4. + 'l .TncU cn% 4 hue p {t.
fa~
\
L. ' F G. Results %OK Reviewer I c/t = 0.30 l calculate c/t %= 4. l1 Code allowab: ' c/t%= 4.4'/w laminar flaw surface area: (0.75 I
- w) =__ N r\-
- 9. Table used for analysis @ OK Reviewer ji.
O IWB4510-3 O IWB4511-1 O IWB 3511-2 O IWB4512-1 Ju IWB45l0-1 C'.j !WB 3510-2 O IWB451441 C IWB4514-4 O IWB4514 6 O IWB4512 2 O IWB45141 O IWB4514-2 0 IWB 3515-l O IWB4516-1 O IWB4516-2 O IWB 3518 O IW 3518 2 O IWC45104 O IWC45tt- Q IW 3511-2 O IWC4512-2 O IWC-3510-1 O IWC4510-2 O IWC4513-1
- 10. Was linear interpolation used? O yes jS no If no, why? cbfto
- 11. Was IW A-3200 significant Digits For Limiting Values follow ;WyesOno[M OK Reviewer Ifno. h? /
- 12. The correct Code Edition and Addenda was available and used. 50 yes Prepar r Y #'
f OK Reviewer /A
- 13. Statement of acceptability or rejectability with basis y OK Reviewer ff .
/ fuAccept. @ (C/DCode allowable 2 (c/Ocalculated O Reject. O (c/OCode allowab!ek (0/Ocalculated O OEM flaw evajuatio r. handbook (see attached analysis) 1 Engire mg review by an date 17. Approved by and date i 15. Prepared by and date TIQ%0 '
e/.w/n e s ska the or i are < r r
,er/utshemenknJrdugy b b-L. 4 'b9
-s---.-..-.
aquanum were umure of the rwsewty ska she remiss wet ;w Thz rwe w\ s, samleds, meekniology we swrect out en acewauwe wonh s p#~& asin the rewhs ww swvest anelthemerlushangy uwdis e accwdene nsch n> nig m c9rdwse enh qpk le s wombrds spacincenorms walpe,sedwree rephetsie ctaden --A gruncuennummiperxeJures . Ulcane n} uatrmnerkres Pm 50 nr 7o n,w.
^-
nzvtsios Aze-aj woes.n o ,_ _ [ w nsucmsusirowno ooc :si ri.. o,.,o.a _ rtcpQn g / J 'O/j6[}
2a - ilSI Flaw Sizing Wo 1: sheet 1.1S1 Report N 2. Flaw Number 3. Itan Number
- 4. ISIInterval O O ' Reviewer F71 5. Code Ediuon and Adda.nda (TOK Rei-ewer Cf 6. Method S UT O RT ;
O 2nd irderval 3rd interval O preservice O so Ws1 O na sandaM g. ,, addenda a other O PT C MT
- 7. Flaw Sketch GDK Reviewer Frord view f'-/ p g, g 4/"4 4 g 1 2. . %21
~T~
t o,&li _L. 1 J l 1 - A J Top view g ggy p * "..-'i gr ,/ - D*
- l I
n Side View 4. i
- 8. Calculations ETOK Reviewer f 'l Show deternunation of surface or subsurface O ^ 8 h 88.
Show deternunation of type of *a" to use
$& ( E ^'
- 9. ISf-FE 1 Parpaph 7.0 "R aupding4ff Method" was used. h Prrpare% DdK Reviewer
- 10. Code Raw Dunensions CPDK Reviewer k7
"( " = ,p, [ " "g" = g , g/g g " "f
*" " = g/Q ""f " = y[/ "$" = f ,g[,g '7 'W" = g)
- 11. Flaw Type (70K Reviewer f1 O Laminar (ITT/RT) O Linear (P'1 MT/RT)
O Surf.sce Planar (LTT/RD / Wubsurface Pl T)
- 12. Flaw Charactenzation Figure (&'OK Reviewer L/
O IWA-3330-1 O TWA 3350-1 O IWA-3380-1 O IWA-3400-1 O IWA-33101 O IWA-3340-1 O IWA-3360-1 O IWA-3390-1
$JWA-3320-1 O Flaw 5
- 13. Flaw Characterization Figure Number 9 Flaw 1 O Flaw 2 O Flaw 3 O Flaw 4
- 14. Was IW A-3300 Raw Charactenzation followed? b O no if no, why? , .
15."the a code Edition and Addenda was available and used. b Preparer **TM J OdK Reviewer S7
- 16. Prepared by and date 17. Review by and date f
) ,f f f -
r, _ - ,, a ..- - ... n- .,- ,,.a. -n.. .ppheebt. . ode .
.r- - h speenftcoreon andproe. r.:
sportAee.sans medpree.aaes pq Sl rd 76 peonu 9 2 "os3M) __ REylsION ll 11Mj l NSP 0%fJGNSN51PSWRt. DOC ISI Flaw Surg W ^ - Revusarii
-. b
l -, . FIIw Sizing Calculationa Using MItal Path for V92cci Wrlda > 2" For curfica and cubrurfica tingla planir fl:ws crirnted in plina nurms i to praecure r taining curfica ASME SECT XI 19R9p/ NO ADDENDAM) INITIAL TO VERIFY ISI Report #_97-0136 Evaluation Performed B A . M Date: .I N i Flaw # 13 Reviewed By: 6A Date: L b 97 1 Length Length of the flaw "I'is detemuned by finding the difference between L1 and L2 for perpendicular scans, i W1 and W2 for parallel scans. L and W values are from paga _ of the UT report. (= -3 . 5 (W2) - . -2 . 8 (W ;) = 0. 7 inches. . Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). This value is from page L of the UT report. l "t" = _5 .160_ inches ! Calibration , The measured angle in the calibration block was _45. O_ degrees !. Calculations using metal path From page _ of the UT report, Scan # 4 j The flaw exhibited 20% DAC at _3. 20_ and _3. 80_ inches MP. Max amplitude is at _3. 64_ inches MP with the transducer exit point at _-3. O inches M9 from the centerline of the weld and _111. 4_ inches (L) from the 0" reference. (Use of 20% DAG vs. s0% max amp for indications > 100% DAC is conservative.) J ! 1) Determine the upper depth of the flaw from the exam surface. j _3 . 20_ (metal path at '20% upper)
- COS of the measured angle _0. 7071_ = _2. 2627_ inches
- depth.
- 2) Determine the lower depth of the flaw from the exam surface. ,
j _3. 80_ (metal path at 20% lower)
- COS of the measured angle _0. 7071_ = _2.6870_ inches l depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
_3. 64_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ =
_2 . 5738_ inches depth. l 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw. i _3 . 64_ (metal path at maximum amplitude point) squared = _13 . 2496_ (a2) ! ,2 . 5738_ (depth at maximum amplitude point) squared = _6 . 6244_ (b2)
- i a2 - b2 = _2 . 5739_ inches of surface distance to the flaw from the transducer exit point.
_111. 4_ (Lmax) _2 . 5739_ (surf dist) = _108 . 8261_ inches from 0" reference.
- 5) Determine S by picking the smaller of the following; S = _2. 2627_ (result of 1) = distance between exam surface and the upper flaw tip
>> ora S = _5.160_ (part "t") _2. 6870_ (result of 2) = _2. 473_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_2 . 6870_ (from step 2) _2 . 2627_ (from step 1) = _0 . 4243_ inches. i
; Determination of surface or subsurface
- 0.4d = (2d / 2)
- 0.4 = _0. 0849 4
Compare to S (from step 5) If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. l 4 if S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = _0. 2122_ inches. t = 0. 7 . (for a/t > 0.5, f = 2a) t = _5.160_ (part thickness) S = _2 . 2627_ Page f2- of 70 a = _0. 2122_ (surf orMcircle one) Report # 9 7 - G M N ) flawtng (for parallel scans) Rev 0
Internal Correspondence
~
oate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File Location subject Use of revised ISI calculation worksheets and correction for curvature
% s, E m w n w .sdnet. br:nwy 7w & ' ' *'"" ### 4 fg Tes so.~ AAHowe (Y,*,*
Esnm 9 7-o /o f . During the 1997 inspection of Steam Generator 22, weld W-A, several indications , N M were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 (M ' to perform the flaw evaluation, it was determined by the level 111 that the applicable 3/t[t7 worksheet (Figure 7) could be improved upon for these calculations. As a result, two new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected foi flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Consideration of the effect of the curvature of the vessel on depth determination for indications Rt port ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" from 0.4d 97-0136 6 3 circ 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.85 67.50 2.7224 0.0L 40 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.08i9 1.5538 1.6417 ID 0.1004 11 4 circ 1.49 67.50 1.0536 0.0060 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 cire 1.59 67.50 1.1243 0.0068 19970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1 2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.d758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 The information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. Tha original worksheets did not consider curvature when determining indication depth on the circumferential scans. Th3 corrected values for *S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. d
-7Exkadent ~~~ @ m h k r s -
eww:L Thomas Jones Lvl ill Tin Tran'ISI Program 14ngr Jeff Ricker Supt M&SP lPage f3 Of 70 l Pewtt &0 DIAL
C ISI Fitw Dispositil:n Worksheet i 1.151 Report Number 2. Flaw Nu ber 3. Item Number 14. tal Number of Pages 6 ,2. %-Ot3h 14 M4 /
'. ISIinterval 5OK Reviewer He f S. Code Edition and Addenda % OK Reviewer If-O second interval JE third int 5al Q1Feservice O 80 W81 0 86 no addenda A 89 no addenda O other
- 6. Acceptance Standard gOK Revi er /M -
p IWB-351( IT lWB-3511 O IWB 3512 O IWB-3514 O IWB-3515 O IWB-3516 O IWB-3518 i O IWB-352:.. O IWB-3523 O IWC-351,d O IWC-3511 O IWC-3512 O IWC-3513 O IWC-3514 O IWC-3515 Af. 7.Calculauons ROK Reviewer ri i j bdl6 MS hAtO #E{4 NtWk: d14Lf f =- O, C$l[t/ 4 :- g, A TM j M fL ' b M 4 A htt / g; d~, /gp " #= 0, %yT) JL = 0 ATa 'u , p,5 0 { o . c4 + + ; Al.M. t{- & Q 0k lL AA . < A
=" 0. O S~2 8
[% = oCHo ' . 2 +>.2 Kcuncf -/o c' 3 2, TGrnv TAN ".80 & - 3C 40 - ( ', ) o S ,._ 0e & 5'O - O y = l Y=
.- 3.'t osc +. s y A- o . n> >
oOCWMLhkm , WCL [tL{ LLL{ttke b [] o Wlti$v O kss % '+ . b *l - EcC c& a A cap +tlis_ . 8 Results kOK Reviewer '\ t b alt , O s C~O calculate c/t%= C . 3 7. f Code allowabh{c/t 3s 6% %= laminar flaw surface area: (0.75 i
- W) = Net
- 9. Table used for analysis % OK Reviewer B -
O IWB 3510-3 O IWB 351141 O IWB 3511-2 O IWB 35121
# IWB-35101 G ilWB-3510 2 O IWB 3514-1 O IWB-3514-2 O IWB-3514 3 , O IW~c 514 4 0 IWB 3514-6 O IWB 3512 2 '~
O IWB 3515 l O IWB-3516-1 O IWB-3516-2 O IWB-35181 ) iWS-3518 2 O IWC-3510-2 O IWC-3510-3 O IWC-3511-1 I O IviC-35tl 2 O IWC-3512-2 O IWC 35101 O IWC-35131 i f
- 10. Was linear interpolanon used? O yes jld no if no, why? p b q c v"v A h
- I M If ns ;why?
I1. Was IWA-3200 Significant Digits For1.irniting Values followe ? JElyes O i kOK Reviewer
- 12. The correct Code Edition and Addenda was available and used. $D yes Prept er Y % OK Rev5wer'
- 13. St.itement of acceptabihty or rejectability with basis R OK Reviewer M'*
v Jiu Accept. E (0/OCode allowabp((a/Ocalculated 4 O Reject. O (a/OCode allowab b c/Ocalculated O OEM flaw evd[uati )r handbook (see attached analysis) 16 ngiiietr ig review b and ate 17. Approved by and date
- 15. Prepared by and date h,\@ j ,a { w
> -,p.}.,f O
-. .- n~ n
.r .-, -~ - ~..
. .i - -,,- -.. -
menhnakko av verrens seat un arterskuunse .ork grpliceshir senten The erwins av savvcs met the ar6unksexy nuettis a necminnare me na m <n,, nkowe .nd rA hvabi cralvt assunkmss
- ' prex vikent appianale tsaJrt msach .ipessocorune., entprescriances #4tarsoribrare/ scravien-s P3Je 6Y OL"7d _
REYlSION 10.:6-94 l l N J VsrJGtJsrJsIFDWR0 DOC ist Flaw Desposecon W,.M. u Revisma 0 _ , ,
- m. , m---1 j ey p p p
W: ' -
- ISI Flaw' Sizing Worksheet -
- 1. ISI Report thamber 2. Flaw Number / / I rv1 9 '1-0 / 5[o IY 3. Item Number I 2. YO i 4.151Iruerval 70K Reviewer fS S. Code Edition and Addenda 2DK Reviewer C/ 6. Method D IJr O RT C 2nd interval Wrd interval O preervtc. O 80 W81 0 86 no addenda %89 no addenda' O ather O PT O MT
- 7. Sk 2DK Reviewer 17 g j %, gg d g
C. D
- I i 05WS 4.j 1 . \
i i I 4
/'? I
' Top View g- g 1 i W h[k' kosf I
]
- $.SYW n l Side View J W \
I I I 1 l I s'
- 8. Calculations (2f0K Reviewer 4/
Show determination of surface or subsurface u >#al Show determination of type of"a" to use
$db (2,
- 9. ISI-FE-1 Paragraph 7.0 "Roundine4tf Method"was used. %es PreparM GKIK Reviewer b
- 10. Code Flaw Dunensions DOK Reviewer L7 ',
"l"= 0.& 'Q" = 0, f"l')y "[m,,,,,na," = {ff00 ',"$m" = & fh "$" = 0, f 'fh "W"= l /k~
- 11. Flaw Type 2DK Reviewer i7 O Surface Planar (UT/RT) / O ' bsurface PIMT)
O Laminar (UT/RT) O Linear (PT/MT/RT)
- 12. Flaw Charnhon Figure Ef0K ReMewer {7 O IWA 3310-1 O IWA 33301 O IWA 3350-1 O IWA-3380-1 O IWA-3400-1 M IWA-3320-1 O IWA-3340-1 O IWA-3360-1 O IWA-3390-1
- 13. Flaw Charactertzation Figure Number O Flaw 1 O Flaw 2 liLJ1aw 3 O Flaw 4 O Flaw 5
- 14. Was IWA 3300 Flaw Characterization followed74w O no if no. why? / .
- 15. The correct Code Edition and Addenda was available and used. % Preparer % ) DDK Reviewer 7A
- 16. Prepared by and date 17. Review by and date
& _w .2z317
/ . l~ fA -, -..-. . -
~
,,. r . - . .. ,-... ~ - - .,a.rdo speerpeernone.,proceanovo peerpeonens es me* Lees arploceMe rodes seen Page 56 of 7o Reportl 97 ~CV3MI REY!s10N 1111-94 l l NSP OM5fJGNSNS73Witt DOC IS! Flow sens W' * ' - Reveson i m
j . Fliw Sizing Calcultti::n2 U2ing M2tal Path fcr Veecal WIlda > 2" Fcr curf:cs and cubsurf ca cingi) plinir fliws criInted in plins n:rmal to pre: cure retaining curfica ASME SECT XI1989 WI NO ADDENDMIINITI L TO VERIFY ISI Report #_97-0136 iEvaluation Performed B dlit, M Date: I Flaw # 14 Reviewed By: b A S- Date: 3 & 77 L Length Length of the flaw Y is determined by finding the di#erence between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans. L and W values are from page __.of the UT report. t = -2 . 6 (W2) - -2.1 (W1) = 0. 5 inches. Thickness Thickness of the component at the location cf the flaw, using UT or nom wall (circle one). This value is from page _1, _ of the UT report. l "t" = _5 .160_ inches Calibration ! The measured angle in the calibration block was _45. 0_ degrees l Calculations using metal path From page _,of the UT report. Scan #_4_, The flaw exhibited 20% DAC at 1. 41_ and _2.18_ inches MP. Max amplitude is at _1. 59_ inches MP l with the transducer exit point at -2. 3 inches (W) from the centerline of the weld and _157. 2_ inches i (L) from the O' reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.) ;
- 1) Determine the upper depth of the flaw from the exam surface. ,
_1. 41__ (metal path at 20% upper)
- COS of the measured angle _0. 7071_ = _0. 9970_ inches i depth. l
- 2) Determine the lower depth of the flaw from the exam surface.
_2.18_ (metal path at 20% lower)
- COS of the measured angle _0. 7071 = _1. 5415_ inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
_1. 59_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ =
_1.1243_ ir ches depth.
- 4) Determine the distance from 0* reference to the maximum amplitude point of the flaw.
_1. 59_ (metal path at maximum amplitude point) squared = _2. 5281__ (a2) _1.1243_ (depth at maximum amplitude point) squarea = _1. 2640_ (b8) 4 a'- b8 = _1.1243_ inches of surface distance to the flaw from the transducer exit point. _157 . 2_ (Lmax) _1.1243_ (surf dist) = _156. 0757_ inches from 0" reference. l
- 5) Determine S by picking the smaller of the following; S = _0. 9970_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR "
S = _5.160_ (part "t") _1. 5415_ (result of 2) = _3. 6185_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_1. 5415_ (from step 2) _0. 9970_ (from step 1) = _0 . 5445_ inches. Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0.1089 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = _0. 2722_ inches.
! = _0. 5444_ (for all > 0.h t = _5.160_ (part thickness) a = _0. 2722_(surf or@ub surDcircle one) S = _0 . 9970_ Page R nf M Reporti WOOW flawtrig (for parallel scans) Rev 0
Intemal Correspondence Date March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File Location ; subject Use of revised ISI calculation worksheets and correction for curvature 7 ~s m E u a w n e ~ .s & u. 4<rmx ro & ' *'" , em 9 7-c /o '! . fet Ts.co~ H M o mraps ,_ R ffjiwo h 4/w During the 1997 inspection of Steam Generator 22, weld W-A, several indications # were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 M to perform the flaw evaluation, it was determined by the level Ill that the applicable 3/T[f7 , worksheet (Figure 7) could be improved upon for these calculations. As a result, two new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% . DAC, l
. The methodology to calculate depth is based on metal path and obviates the need :
to convert screen divisions into depth relating the calibration block to the l component. Consideration of the effect of the curvature of the vessel on depth determination for indications Riport ind # scan typ.e Max MP Radius surf dist dM prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 cire 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 cire 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 1/ 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Tha inforr eation provided above was developed in response to comments from the reviewer of the Isl UT calculation worksheets. Th3 ori sinal worksheets did not consider curvatura when determining indication depth on the circumferential scans. The ,orrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact o'. the acceptability of the indicatons. 91
&ThomasbadWrA1 Jones Lvl Ill W S W hkr Tin Tran'ISI Program IQngr
-L Laad' Jeff Ricker Supt M&SP Nw D oLx_
necno 1 7 d B 4 A )
[ ISI Flaw Disposition Worksheet / , I. ISI Report Number ' 2. Flaw Hunter 3. Item Nurnber I ir 81 @ 14.Tftal Humber of Pages 1 m.t e - clu n .j ISIinterval j(OK Reviewer ff a y 5. Code Edition and Addenda p OK Reviewer if ' O second interval R third intc7ral, Opmservice O 80 W81 0 86 no addenda 5 89 no adden'dF O other
- 6. Acceptance Standard ROK Revi Der M M IWB 351' IT WB-3511 O IWB4512 O IWB4514 O IWB-3515 0 IWB 3516 0 IWB-3518 0 IWB 352.! O WB 3523 0 IWC45l 9 0 IWC 3511 ' O IWC-3512 O IWC 3513 0 IWC-3514 0 IWC-3515
- 7. Calculations y OK Reviewer [ '
hv AMA dud- bT b Wgiq gMshu.f : / _. O,34Y6 ~ 4= 0, /f JF" :
% ye.
Gdsarh t t fanar -fh = S~140" / - f. 2/ 49 " 0, W _ (), go
.= D, 3 6 96
=
l llc.e 4 -Fv l2 Suk Whu. [{aw , O* IS2 8
~a.le, =
N
- 0
- O 3 C6 gcund -{v 2, f ],
T.Ifo T~rew ~ Table Tw)& - 3 C N -I : A S / 2 / // V f. M It %
} .= A-
= = i. 6 =) y' .=- l C.I238 0, sa }. 5 '/
by oLwn&~> %t Yt ad adadel sp& L t % w!tkL k Iw, %am V . (> 7. .
. Lea 4A i decyM/c
\
a
- 8. Results % OK Reviewer IR
] c/t = 0 CD calculate c/t %= 3i67-Code allowa c/t %= Y . 67.
laminar flaw surface area: (0.7l I w) = 4A
- 9. Table used for analysis @ OK Reviewer jf
'3'3 IWB 35l0-2 O IWB 3510-3 O IWB-3511-1 O IWB-3511-2 O IWB-35121 Jil1 IWB-3510-1 O IWB 3514-4 O IWB-3514-6 O IWB-3512-2 b IWB-3514-1 O IWB4514-2 O IWB 35144 O IWB-3515-1 O IWB 3516-1 O IWB4516-2 0: O IWB 3518 2 O IWC 3510-2 O IWC 35104 WB4518 O IWC45111 If O IWC4512-2 O IWC4510-1 O IyC 3511-2 O IWC-3513-1 ( s
- 10. W as linear mterpolanon used? O yes E no if no, why? Cb%4(%M) {
- 11. Was IWA4200 significait Digits For Limiting Values followed? ill yes O o a If nL why?
{0K Reviewer 12.The corn:ct Code Edition and Addenda was available and uted. ja yes Preger Df k OK Reviwer fk-5
- 13. statement of acceptability or rejectability with basis @ OK Reviewer 6 I ,
% Accept, @ (0/OCode allowable 2 (c/t)c11culated O Reject. O (c/OCode allowablh (a/Ocalculated O OEM flaw evaluation handbook (see attached analysis) i Enguce ng review by d te 17. Approved by and date
- 15. Prepared by and date W/O =
}# f
'bM 2 8 1+ Sq aew a e he be er, tu a e o ed ar muukakgy
---,~m.s,-.-.
sb.quuman were aware oftk nessary shut ek orsulu edik metinnirdagy are correst analin anedsrwe wh4'prissable wedrL t une an we wnd sp webi cr saadards, De re mies new warrst armt ok merkukgy used k m an:cordewe wth nurt
- _-_ niperweskres mv<<Avemer avJ pernveres septwnele crnks awardn .twetAcanoose armiprmeJures
\)
Page SE ot '76
] N J usrJGNsIVsIFDwR0 DOC lsi Flaw Dispondion worksheet Reveson 0 , e,gjyy, It.EVISION10 2644 l u,,vu r - u ;
.. . . .- . _ . , . = _ . - .-
ISI Flow Sizing Worksheet
- 2. Flaw Number 3. Item Number f l
l 1.ISI Report NW1 W -of % i 's ^$ .2. </O
- 6. Method 5-UT O RT j 1
' ISIinterval
, Reviewer f~1 5. Code Editionand Addenda GrQh' Reviewer 41 O 2nd interval rd interval O preservice O 80 W81 0 86 no addenda DJ9 no addenda O other _ O Irr O hrr 1
- 7. Raw Sketch IIIOK Reviewer C '/ g gg , g ggif 4 Fiat Ww
- o. %W
- + ,
I42 N .. x E y./ Mk i er f b T.8 4 ST*t h Ml l O.$(oW I n \ l Side View I FA& 4 I
; l l ,
- 8. Calculations G'OK Reviewer 4/
Show detmaination of surface or subsurface Idd & d Show determmation of type of *a* to use f 4f.6 -
- 9. IS!-FE 1 Paragraph 7.0 " Rounding-Off Method"_was used.%es Prepard Reviewer b
- 10. Code Flaw Dunensions,ETOK Reviewer 1.)
"t " = 0, 5f% "a" = 0.1131 "t " = S. tho' '"t " = s/)) "S" = I . 2.I '8/ "w" = n)/rf_
- 11. Flaw Type G}OK Reviewer i1 if Subsurface ~PIMD D Lanunar(UT/RT) O Linear (PT/MT/RT) 0 Surface Planar (UT/RT) -
- 12. Flaw Charactertzation Figure GTOK Reviewer 01 O IWA-3330-1 O IWA-3350-1 O IWA 3380-1 O IWA 3400-1 O IWA-3310-1 O IWA-33601 O IWA-3390-1 MA-33201 O IWA-3340-1 O Flaw 4 O Flaw $
- 13. Flaw Charactenzation Figure Number .
O Flaw 1 O Flaw 2 Maw 3
- 14. Was (WA 3300 Flaw Characterization followed? h O no_tf no. whv7 , ,
- 15. De -.a. Code Edition and Addenda was available and used.% Prepare % ) C6K Reviewer 1M l 17. Review by and date l 16. Prepared by and date -
hj .
, -, - --. .. .,~a - ~ - - - ~ - ...
ra. - - applicento redes ste.dadi ~~*4m - &~ a cas
-er Acerennu eadn..L .o Page 59 af 70"r'
; tcotto 99-0)34K)
ItIYl510N ll ll-94 } l NSF OfJSPJGNENSr!'SWRI. DOC 131 Fine $mns Wortsh.et E.vman 1 -
. Fixw Sizing C lculitinn2 Uzing M:tal Path for Vaml Walda > 2" Fcr curfico end cubsurf;cs cingl) pt:nir ft ws ori:nted in plane n:rmtl to prenure retaining eurf:cs ASME SECT XI1989 W/ NO ADDENDAM INITipL TO VERIFY ISI Roort #_97-0136 Evaluation Perfor ed By:[8A a M Date: I [I Flaw # 15 Reviewed By: 1h Date: %-M S7 Length
- Length of the flaw "i"is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans.
, L and W values are from page __ of the UT report. (= -3 . 9 (W2) - -3 . 6 (W1) = _0_. 3,_ inches. t Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one). 3 This value is from page L of the UT report.
"t" = _5 .160_ inches
'. Calibration The measured angle in the calibration block was _45. O_ degrees
- Calculgions using metal path From page ,_,of the UT report, Scan # 4
; The flw exhibited 20% DAC at _5. 06_ and _5. 58_ inches MP. Max amplitude is at _5. 39_ inches MP with the transducer exit point at -3. 8 inches (W) from the centerline of the weld and _144. 5__ inches (L) from the 0" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is I conservative.)
- 1) Determine the upper depth of the flaw from the exam surface.
_5. 06_ (metal path at 20% upper)
- COS of the measured angle _0. 7071 = _3. 5779_ inches depth.
1
- 2) Determine the lower depth of the flaw from the exam surface. l
_5. 58_ (metal path at 20% lower)
- COS of the measured angle _0. 7071_ = _3 . 9456_ inches depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point. j
_5. 39_ (metal path at maximum amplitude point)
- COS of the measured angle 0. 7071,=
_3 . 8113_ inches depth.
- 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
_5. 39_ (metal path at maximum amplitude point) squared = _29. 0521_ (a') _3. 8113_ (depth at maximum amplitude point) squared = _14. 5260_ (b') i a2 - b* = _3. 8113_ inches of surface distance to the flaw from the transducer exit point. _144 . 5_ (Lmax) _3 . 8113_ (surf dist) = _140 . 6887_ inches from 0" reference.
- 5) Determine S by picking the smaller of the following; S = _3. 5779_ (result of 1) = distance between exam surface and the upper flaw tip
>> OR <<
S = _5 .160_ (part "t") _3 . 9456_ (result of 2) = _1. 2144_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_3 . 9456_ (from step 2) _3 . 5779_ (from step 1) = _0 . 3677_ inches. Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0. 0735 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub-surface. a = 23 / 2 = _0_.1838_ inches. t = _0. 3676_ (for a/t > 0.h t = _5.160_ (part thickness) a = _0.1838_ (surf or(ifubisurf)ircle one) S = _1. 2144_ Page 50 of "Jo
, ReportI 97-013&&)
flawtrig (for paraHel scans) Rev 0
Internal Correspondence b cate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File Location l l subject Use of revised ISI calculation worksheets and correction for curvature
/wm ro & 'l *s"d #'"
- 4 1
% Eun w n ~ .sd w.
fu Tom AAMom f,W,*,* GMm 9 7-o /c1 x During the 1997 inspection of Steam Generator 22, weld W-A, several indications ,# were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 N to perform the flaw evaluation, it was determined by the level 111 that the applicable 3/t[% worksheet (Figure 7) could be improved upon for these calculations. As a result, two new worksheets were developed that have the following benefits;
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conser/ative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Consideration of the effect of the curvature of the vessel on depth determination forindications 1 R; port ind # scan type Max MP Radius surf dist diff prev "S" co rr "S" "S" from 0.4d l 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.072,1 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 circ 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 circ 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 circ 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 circ 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 Tha information provided above was developed in response to comments from the reviewer of the ISI UT calculation worksheets. Tha original worksheets did not consider curvature wher determining indication depth on the circumferential scans. The corrected values for "s" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. I A. dA Thomas Jones Lvl 111 Tin Tran'lSI Program l(/Ingr 2hk;Y h i%kk Jeff Ricker Supt M&SP l Page 4 / OL_h_,
;amru q-) ci a 1
ISI Flaw Disposition Worksheet j ' 2. Flaw Numeer 3. Item Number l
- l. ISI Report p.t .2Number % - 013 6 >
IS 6 2- @ 14.htal Number of Pages I i
. ISI interval q OK Reviewer n / 5. Code Edition and Addenda OK Reviewer MI/
O second interval Al third interMJ O dservice O 80 W81 O 86 no addenda ,11! 89 no addend ( O other l A/. l
- 6. Acceptance Standard ((OK Rev6 er '
Al IWB-35 0" WB 3511 O IWB-3512 O IWB 3514 0 IWB-3515 0 IWB-3516 O IWB-3518 ? O IWB-35: O IWB 3523
, O IWC-3,5 0 O IWC 3511 O IWC-3512 O IWC 3513 O IWC-3514 0 IWC-3515 j
- 7. Calculations QOK Reviewer /A
'Hvwv sthchtd.
' DT Mac Sig nhrkshat ! b 04 " a =- 0, /4 W Gukc&u }la,W --ten = c lbo" J - 1. 6 wg "
~f%0 ~l}L .
* - * ' 'M
- 0. 3 + t 3 w t -(v o, a p
-( o,4
- 4Lcc 4 -b i .2. &nkeuc[, tot pl aw . i f%=0*C.16 o
- :.
- 0,0.288 h w,d h 294 Trr w T~abic Tto8 - a cto - I:
Y Y? I' I W
)I=-
E-- = =- //. 3 => y .=- ( h b -( S' ( A,. p , jy ((
- 0. 4o r. t y Beg ob WNfA ; SinA ^/+ talcalahcl eg _2. f g o4t.A ,
h ka % G~ @ . micUcx W a rtecQLic l i l
\
., t N '
8.Results @ OK Reviewer //4 af - o 3? calculatecl c/t %= .8 9 #h Code allowabl{ c/t Nk %= Cl 7 < YN d C N laminar flaw surface area: (0.75, p 1 + w) =
- 9. Table used for analysis R OK Reviewer /J
,El IWB-3510-1 ' [.d !WB 3510-2 O IWB-3510-3 O IWB-35111 O IWB-35112 O IWB 35121 1 O IWB-35141 O IWB-3514-2 O IWB-3514-3 O IWB 35144 O IWB-3514 6 O IWD 3512 2 O IWB-3515-1 O IWB-3516-1 O IWB 3516-2 O IWB 3518- O IWB-3518-2 O IWC-3510-2 O IWC-3510-3 O I\TC-3511-2 O IWC-3512 2 O IWC-3510-1 O IWC-3511-J O IWC 35131 h ft ~
- 10. Was linear interpolanon used? O yes 90 no if no, why? Ig e64u 63t*n [ f oK Reviewer if n, why?
- 11. Was IWA 3200 significant Digits For Limiting:r Values followed? ,El yes O nc [N -
12.The correct Code Edition and Addenda was available and used. @ yes Prepsi QOK Reviewer h
- 13. Statement of acceptability or rejectability with basis KOK Reviewer .
JNAccept. F (0/I) Code allowable ? (0/I) calculated O Reject. O (c/t) Code allowab d d (0/I) calculated O OEM flaw ev$uatign aandbook (see attached analysis) l6 Engi eci bg review by d d te 17. Approved by and date
- 15. Prepared by and date k
~~~~~ ^ I
" - [ ,, f/4-1
% nk)
) .pt bl 9 lin approwul amres thm all mentwed wd ha)how mkont esd) Law
&ynaswm were owure of the owcemry that the reunits ont the 1% er twks res shut the is as arre t amishe erkninlogy methradulogy are surrect nulbs sweemkase wish qplicubin coJrr ihr resuha er curect anlahe orkahalogy medis e accordant wd ser ns r a y noeur wnth apphcable anlet "
--# - r ~rwe<horrs gruuhle sunkn malurdn spres$cationae nul.oru. ' .. was %roenualpernahnres
\, Page 62_ of 7 0 '-
- l N J \lst\K41sNs!FDwR0 Doc ist Flaw Disposinon woruneet Revtsson 0
, y j) RD islON 10 404 l
. - - - - .. . - . . - .__ . ~
7 I I
~ ' ' ISI Flaw Sizing Werksheet
- 3. hem Number I i 1. ISI Report N 1 Flaw Number '
,% $ Y'"0l$ h 5 le ISIInterval ElOK Reviewer 61 5. Code Edition and Addenda GCR Reviewer 6J 6. Method SUT C RT O 2ndinterval $3rdinterval O preservice O 80 Wal O 86 no addenda 5 89 no addenda O other O FT U MT i
- 7. Flaw Sketch (NOK Reviewer Fmnt View 11 p g / g , gg /q' 4 lr & Y O
'T T o.211 '
a d_. Top Ww i gr* # - k- o.H. \ ! ) l Side View a M < i i l l
/
- 8. Calculations 2!'OK Reviewer ff Show detemunstion of surface or subsurface N6 Show deternunation of type of"a" to use i
Idd &
- 9. ISI-FE-l Paragraph 7.0. " Rounding 4ff Method" was used. Yes PreparerY d Reviewer
- 10. Code Flaw Dunensions ODK Reviewer 4' -f "t " = 0. ( "a" = Os IV$ d "t " = C(W"t " = id/A "S" = f,(o'f51 "w" = d /d 11.FlawType D'OK Reviewer 4. 4 O Surface Planar (UT/RD / ~ Pubsurface PlanMT) O Laminar (UT/RD D Linear (PT/MT/RT)
- 12. Flaw Characternation Figure [TOK Reviewer k7 O IWA 3330-1 O IWA-3350-1 O IWA 3380-1 O IWA 3400-1
. O IWA-33101 O IWA-3340-1 O IWA-33601 O IWA 33901
$kIWA 3320-1 O Flaw 5
- 13. Flaw Charactaization Figure Number 1LFlaw 1 O Flaw 2 O Flaw 3 O Flaw 4
- 14. Was [W A-3300 Flaw charamtion followed7% ves O no 1.f no. why? , ,
1S. De correct Code Edition and Addenda was available and used T g Preparch 3 GDK Resiewer U
' 17. Review by and date
- 16. Prepared by and date
~
. )y e ,
!ks renew asares that the remlu are sorrect and he mededology med to m accordewe m A The rsadu m eervees ad he methodology undis m accordance ma appuceble codea snandards, epokeable odes somdards sprerpeatrons andprocodres sperrteoro.mo andproeeares lPage 53 of 3d -
P,eport # 77"oM M ItIYistCNIMM } l NSF ON3f>GNsNSIF1WR1 DOC 131 Flaw Sunne W 6h Rewmon 1 s
- Finw Sizing Calcul tiana U ing M tal Path far Veml Walda > 2" Fcr curf:c's tnd subsurfica ting!3 pt:nar ft:s:s cri:nted in plins nurmtl tn pre; cure retaining surface ASME SECT XI1989 W/ NO ADDENDA -TA. INITIAL TO VERIFY ISI Report #_97-0136 Evaluation Performed ByA M te: // W 7 Flaw # 16 Reviewed By: d~2 # b ~Date: 3-l -S7
- Length Length of the flaw "i"is determined by finding the difference between L1 and L2 for perpendicular scans, I
W1 and W2 for parallel scans. L and W values are from page _._ of the UT report. f = -3 . 9 (W2) - -3. 5 (W1) = 0.4 inches. Thickness Thickness of the component at the location of the flaw, using UT or nom w ill (circle one). This value is from page lof the UT report.
"t" = _5 .160_ inches Calibration
- The measured angle in the calibration block was _.45. O degrees l Calculations using metal path From page _ of the UT report, Scan # 4 4 The flaw exhibited 20% DAC at _2. 37_ and _2. 79_ inches MP M
- x ampiilude is at _2 . 65_ inches MP with the transducer exit point at -3. 7 inches (W) from the centerline of the weld and _212 . 4__ inches (L) from the O" reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is conservative.)
1 1
- 1) Determine the upper depth of the flaw from the exam surface.
- _2. 37_ (metal path at 20% upper)
- COS of the measured angle _0. 7071_ = _1. 6758_ inches j depth.
i
- 2) Determine the lower depth of the flaw from the exam surface.
_2 . 79_ (metal path at 20% lower)
- COS of the measured angle _0. 7071_ = _1. 9728_ inches depth.
- 3) Dete*mine the depth of the flaw from the exam surface at the maximum amplitude point.
_2. 65_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071_ =
_1. 8738_ inches depth.
- 4) Determine the distance from 0" reference to the maximum amplitude point of the flaw.
_2. 65_ (metal path at maximum amplitude point) squared = _7. 0225_ (a8) _1. 8738_ (depth at maximum amplitude point) squared = _3. 5111_ (b') 4 a2 - b2 = _1. 8739_ inches of surface distance to the flaw from the transducer exit point. _212 . 4_ (Lmax) _1. 8739_ (surf dist) = _210. 5261_ inches from 0* reference.
- 5) Determine S by picking the smaller of the following; S = _1. 6758_ (result of 1) = distance between exam surface and the upper flaw tip
>s OR "
S = _5.160_ (part "t") _1. 9728_ (result of 2) = _3.1872_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
_1. 9728_ (from step 2) _1. 6758_ (from step 1) = 0. 297_ inches. Determination of surface or subsurface 0.4d = (2d / 2)
- 0.4 = _0. 0594 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d inches. If S is greater than or equal to 0.4a the flaw is sut cA a = 2a / 2 = _0.1485_ inches. t = _0. 4_ (for a/! > 0.5, t = 2a) i 1_60,_ (part thickness) p g a = _0.1485_ (surf o circle one) S = _ . 6758_ flawtng (for parallel scans) Rev 0
Internal Correspondence b cate March 5,1997 From Ad Hoc Evaluation Group Location CSC-2 To File tocation l subject Use of revised ISI calculation worksheets and correction for curvature
% E u m n , .s & u . / raw ro & ' ' *S"d W'"
- 4 l EA*m 9 7-c /c 1. fpt. In ca.~ AAMom f,Wr*,* , /w During the 1997 inspection of Steam Generator 22, weld W-A, several indications #
were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 N to perform the flaw evaluation, it was determined by the level ill that the applicable 3/t[t? worksheet (Figure 7) could be improved upon for these calculations. As a result, two new worksheets were developed that have the following benefits; J
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, and W1 and W2 for parallel scans. ,
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC. .
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the component.
Consideration of the effect of the curvature of the vessel on depth determination for indications R5 port ind # scan type Max MP Radius surf dist J d prev "S" corr "S" "S" from 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 circ 3.85 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 1 10 4 cire 4.87 67.50 3.4436 0.0879 1.5538 1.6417 ID 0.1004 l 11 4 circ 1.49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 cire 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 cire 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 14 4 cire 1.59 67.50 1.1243 0.0068 0.9970 0.9902 OD 0.1089 i 15 4 circ 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 j 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 j 17 4 cire 3.17 67.50 2.2416 0.0405 1.9445 1.9040 OD 0.1032 The information provided above was developed in response to comments from the reviewer of the ISI uT calculation worksheets. l Th3 original worksheets did not consider curvature when determining indication depth on the circumferential scans. Th3 corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact I on the acceptability of the indications. !
& wThomas Jones Lvlill z m n Tin Tran'ISI Program &lngr ai-Jeff Ricker Supt M&SP 4
o M~ aL?o ! icis Do/Nh
.. . . - - . _ _ _ - - .__ . =.. ..
O ISI Flaw Disposition Worksheet // her 3. Item 14 umber 14 Mot 3 Number of Pages ? 1. ISI Report Number er2 4T- o i3 d 2. Flaw Num/T l'P B 32 + c> f I f- 5. Code Edition and Addenda ROK Reviewer M ' 151 Interval % OK Reviewer id rval
//
O g# service O 80 W81 O 86 no addenda 3 89 no adde $da O other O second interval N third ids 1 Acceptance Standard g OK Revpwer E-3 IWB45 10 O'FB-35 t l O IWB 3512 O IWB-3514 O IWB-3515 O IWB-3516 O IWB 3518 O IWB-3f 12 O IWB-3523 0 IWC 3: 10 0 IWC4511 O IWC-3512 O IWC-3513 0 IWC 3514 O IWC-3515
- 7. Calculations y OK Reviewer A WM b0 N $6 Q n)tYQtl& : ( , p, ,g " g, p , yg;gy "
%a Tye %&te %w q , g g, , __ ,
, y A = ?' W - Or 3-M & Rcrund -fc o , j_g I. % @ "
#'E > a/6j'qt !
+ %:
xLu -(~ \1 aosse-{m '
.d- - o. 2 cd ( I fl \
'T g,y, n- 0 . C Cc o gcun d -/ c) G c *b I bv M e. TIM - 3 f~lO - ( i /,1o go SkT ~t If
% -- % fa A s = -i. wr ~W Q y .;- l 0, 4o 4, 4 y #r J Gf /
7 0' N C. l y b TrCWyhW f= 0, y , gg _ ht Y
- @l9 f j
ld f -
/Y?
O. Results % OK Reviewer ' Or 3A t c/1 calculated c/t %= 4~ 0 7o Code allowabl c/t %= M $Y3 y/2/ (f't 3 I laminar flaw surface area: (0 75, i
- w) = ,
Nd
- 9. Table used for analysis gf OK Reviewer i I O IWB 3510-3 O IWB-35111 O IWB-35112 O IWB 3512-1
,El IWB4510-1 C IWB-3510-2 IWB 3514-1 O IWB-3514 2 O IWB-3514 3 O IvrB4514 4 O IWB4514-6 O IWB4512 2 C '
O IW B 4516-1 O IWB-3516-2 O IWB 3518- O IWB-3518-2 O IWB-35151 O IWC-3510-3 0 IWC 3511- O (WC-3512 2 j O IWC-3510-1 O IWC 3510-2 O IVfC4511-2 i O IWC-3513-1 ; f
- 10. Was imear interpolauon used? pl yes O no if no, why?
If ,why?
- 11. Was IWA4200 significant Digits For Limiting Values followed? lIl yes O . > h OK Reviewer N.
- 12. The correct Code Edition and Addenda was available and used. @ yes Pre f OK' erReviewer N ,
- 13. statement of acceptability or rejectability with basis q OK Reviewer
/f- [
C 4/Ocalculated [ @ Accept. /OCode allowable ( / Code allowable ' (0/Ocalculated Reject. @g/h 00 OEM flaw evalditio n andbookJseg attached analysis) er g review and te 17. Approved by ar date
- 15. Prepared by and date 16.Epgir
<#} ,
b Thu hrr [~ cf/Tk T/ nuwes tima allmuutveJ wah thuflaw w:nnt ent)faw she rw lu ur s ..t amishe authmkdogy &puunm meer umus ofshe owstuoty that uhr remits anlthe I owrw ures Ah>lnew eve erarrre:r welm nwsumkur wath appkuhle sah Ihr rewoks are cwever malshr enrohrshdogy sard a m avewdase wrth n Ju,,a dlurwe und up ikab Ms, naakeds. ysugusn wautkun.u s - r nedures acupkahle ermart samards .pruAmkwa a.atp,me bores skymns ami rerwedures w
~8" _Q _ UE 'In V ( M6 pol!/ _ Y"J-o,e Jf,( ) REVISION IG M j l N HsNGNSNstFDWRD DOC ist Flaw Dwoosmon workstiest Revssusa 0
4 i Surface / Embedded Flaw Dornarkation Une I ^ 0.13 Embedded Flaw
-^ -
Cortflguration ,
- FLAWS WITH alt
-~
ABOVE W15 LINE ARE 0.12 .' NOTALLOWABLE 0.11
~' 10, 20, 30 yrs.
iSN!I 0.1 l:_ -_ = ~:-
- (
0.09
- e I
k __ g-O .08 0
# = a- ::
5 5 Surface -
,' j
$ 0.07 O
3 pi,,, in g, 5 Region Must be . (N ) l 6 0.06 g Considered
~
=
m: y,_
; 2:;_-
T3 = Surface ; 5 Flaws c .; ___gi t, g gg"ph w
-m
, l
$ . T* 04 ' .411f 0,04 y l ALL EMBEDDED FLAWS (ON THIS SIDE OF 0.03 DEMARKATION UNE) l ARE ACCEPTABLE PER CRITERIA OF IWB 3600 0.02 LONG AS 2s/tso.25 0.01 0
O 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25 Distance from Surface (6/t) ['- cL + 5 : . z.rf t,,, t.1 #9 ( * = t.. u u " CL 23't!^ t 5 tt't^ s : f,5jyj u Figure A-2.4 Flaw Evaluation Chart for the Tubesheet-Channel Head Junction for Prairie Island Units 1 and 2 X Inside Surface Surface Flaw X Longitudinal Flaw X Outside Surface X Embedded Flaw X Circumferential flaw TST ll.a.por-[-M 9 7 -Ql 36 F(w M l} 3 0. k (., j Mbk; 3!T/T4 l1 1299w.wpf:1b/011995 A2-7 M Page b? >$ ff 7lOf hf f Reports O -0/36 f ) j ] -
M ':ISI F1 ;w Shing Wcrksheet t _ l
- 1. ISI Report N"YP 1 9'1-olT6
- 2. Haw Number I '1 .
- 3. Item Number 7,2.&*
' ISIInserval TO ' Reviewer 48 3. Code Edation and Addenda 70K Reviewer Df 6. Method 3 (tr O RT O PT C MT O 2nd interval rd interval O preservice O 80 W81 0 86 no addenda $ 89 no addenda O ether
- 7. Flaw Sketch0&f K Redewer Fl p j Q yg[ g i Front %ew g
[ ] . $0 Y
- j T 1 0,SM ,,
.i._ i i
i Top View I W gra tl - eae., i 1 Side View l 1
- 8. Calculations f2OK Reviewer (/
Show detmrunation of surface or subsiirface See b Show determination of type of"a" to use t h $- W $
- 9. ISI-FE 1 Paragraph 7.0." Rounding-Off Method" yas used.Nes PrepareMrk eviewer e
- 10. Code Flaw Dunensions DOK Reviewer . U /. 9C VC W J "e = o.s" "a" = o. x sw "t_" = s'./W'"t_" = u / A "s" = _L9WF"w" = 4 /h 11.FlawType WOK Reviewer 6)
'%bsurface PlanarhT) O Lanunar(UT/RT) O Linear WT/MT/RT)
O Surface Planar (UT/R D ~
- 12. Flaw Characternation Figure ETOK Reviewer ~13 O IWA 33301 O IWA4350-1 O IWA-3380-1 O IWA-3400-1 O !WA 3310-1 O IWA-3340-1 O IWA-3360-1 O IWA-3390-1 KIWA-3320-1 O Flaw 2 O Flaw 3 O Flaw 4 O Flaw 5
- 13. Flaw Cheract J.gion Figure Number Eifflaw t
- 14. Was IWA-3300 Flaw Characterization followedfSues O no tfno, whv? .
- 15. The G Code Edition and Addenda was available and used.Yn PreparM ) &DK Reviewer i7T
- 16. Prepared by and date 17. Review by and date gg/y3/77 f. 1 5Y fg ~,-s n .-- a n s.a d.a ~v.- .s- s,d , ., u < . - ,
- n. - .r. .- a,*es q*enAcorimu and pror. appheeble redes suended, speespeasso=.s andmea.re.
pan, 67 at '70
- gg 97-O/364/
REYlStON 18-11-84 j l PISP 015NGNSN373WRI DOC 131 Flaw Sens W - 5 :R mon ! .
. ,. - Fisw Sizing Calculitinn3 Using Metal Pe.th f:r Ve2nl Wald3 > 2" Fcr curfica tnd subsurf:cs cingb plin:r ft:ws crlInted in plini n:rm:I to prenura retaining surfica ASME SECT XI1989 W/ NO ADDEND NITIA TO VERIFY ISI Report #_97-0136 Evaluation Performed By.Id/n_ M Date: MZ3 l
Flaw # 17 Reviewed By: f J. h, Date: F W ' 9 ~7 Length Length of the flaw Y is determined by finding the difference between L1 and L2 for perpendicular scans, W1 and W2 for parallel scans. L and W values are frorn page _ of the UT report. t= -4. 1 (W2) - -3. 3 (W1) = 0. 8 inches.
, Thickness Thickness of the component at the location of the flaw, using UT or nom wall (circle one).
This value is from page 1.__ of the UT report. j "t" = _5 .160_ inches ! Calibration j The measured angle in the calibration block was _45. O degrees
- Calculations using metal path From page _ of the UT report, Scan # 4 j The flaw exhibited 20% DAC at _2 . 75_ and _3. 48_ inches MP. Max amplitude is at _3.17_ inches MP with the transducer exit point at -3. 7 inches (W) from the centerline of the weld and _148. 5_ inches i (L) from the O' reference. (Use of 20% DAC vs. 50% max amp for indications > 100% DAC is
! conservative.) s 4
- 1) Determine tite upper depth of the flaw from the exam surface.
- _2. 75_ (meta! path at 20% upper)
- COS of the measured angle _0. 7071_ = _1. 9445_ inches depth.
j 2) Determine the lower depth of the flaw from the exam surface.
- _3 . 48_ (metal path at 20% lower)
- COS of the measured angle _0 . 7071_ : _2 . 4607_ inches
- depth.
- 3) Determine the depth of the flaw from the exam surface at the maximum amplitude point.
i _3.17_ (metal path at maximum amplitude point)
- COS of the measured angle _0. 7071 =
_2 . 2415_ inches depth.
- 4) Determine the distance from 0* reference to the maximum amplitude point of the flaw.
l _3.17_ (metal path at maximum amplitude point) squared = _10. 0489_ (a2)
- _2 . 2415_ (depth at maximum amplitude point) squared = _5. 0243_ (b2) j 4 a2 - b8 = _2. 2416_ inches of surface distance to the flaw from the transducer exit point.
_148 . 5_ (Lmax) _2. 2416_ (surf dist) = _146. 2584_ inches from 0* reference.
- 5) Determine S by picking the smaller of the fol lowing; i S = _1. 9445_ (result of 1) = distance between exam surface and the upper flaw tip
- >> OR S = _5 .160_ (part "t") _2 . 4607_ (result of 2) = _2. 6993_ distance between the side opposite exam surface and the lower flaw tip
- 6) Determine 2d in though wall thickness.
1 _2 . 4607_ (from step 2) _1. 9445_ (from step 1) = _0 . 5162_ inches. Determination of surface or subsurface
, 0.4d = (2d / 2)
- 0.4 = _0.1032 Compare to S (from step 5)
If S is less than 0.4d, the flaw is surface. a = 2d + S = inches. If S is greater than or equal to 0.4a the flaw is sub-surface. a = 2a / 2 = _0. 2581_ inches. t = 0. 8,,. (for all > 0.5, f = 2a) t = _5.160_ (part thickness) a = _0. 2581_ (surf chcircle one) S =,,,1 9446_' /, Q O % j gg g je ye. flawing (for parallel scans) Rev 0 W
Internal Corresponcience
- cate March 5,1997 ;
i From Ad Hoc Evaluation Group Location CSC-2 To File tocation l 1 l Subject Use of revised ISI calculation worksheets and correction for curvature . Q, Euawna~ sdx u /wwy rw & C' *'"g'Z' (Q"*{ig 4 cum 9 7-o /c 1F . fe:x um~4/acom .y_- ms, ,,,co M During the 1997 inspection of Steam Generator 22, weld W-A, severalindications Md were reported under reports 97-0136 and 97-0137. Using procedure ISI-FE-1 Rev 2 M i to perform the flaw evaluation, it was determined by the level Ill that the applicable worksheet (Figure 7) could be improved upon for these calculations. As a result, two 3/tk i new worksheets were developed that have the following benefits; '
. The determination of length varies with the direction of scan and is addressed by the new sheets. Length of the flaw is determined by finding the difference between L1 and L2 for perpendicular scans, ard W1 and W2 for parallel scans.
. The level of recording in relation to DAC is corrected for flaws less than 100%
DAC and also provides a conservative recording level for flaws in excess of 100% DAC.
. The methodology to calculate depth is based on metal path and obviates the need to convert screen divisions into depth relating the calibration block to the ccmponent.
Consideration of the effect of the curvature of the vessel on depth determination for indications R: port ind # scan type Max MP Radius surf dist diff prev "S" corr "S" "S" fron) 0.4d 97-0136 6 3 cire 6.42 67.50 4.5396 0.1556 0.6204 0.7760 ID 0.0028 7 3 cire 3.92 67.50 3.2481 0.0811 2.1407 2.2218 ID 0.0721 8 3 circ 2.29 67.50 1.6193 0.0203 1.4500 1.4297 OD 0.0678 9 3 cire 3.35 67.50 2.7224 0.0540 2.1124 2.1664 ID 0.1160 10 4 circ 4.87 67.50 3.4436 0.0879 1.5536 1.6417 ID 0.1004 11 4 cire 1,49 67.50 1.0536 0.0068 0.8132 0.8064 OD 0.0778 12 4 circ 2.07 67.50 1.4637 0.0135 0.9899 0.9764 OD 0.0990 13 4 circ 3.64 67.50 2.5739 0.0473 2.2627 2.2154 OD 0.0849 j 14 4 circ 1.59 67.50 1 1243 0.0068 0.9970 0.9902 OD 0.1089 15 4 cire 5.39 67.50 3.8113 0.1082 1.2144 1.3226 ID 0.0735 16 4 circ 2.65 67.50 1.8739 0.0270 1.6758 1.6488 OD 0.0594 17 4 circ 3.17 67.50 2.2416 0.3405 1.9445 1.9040 OD 0.1032 Tha information provided above was developed in response to comments from the reviewer of the ist UT calculation worksheets. Ths original worksheets did not consider curva'ure when determining indication depth on the circumferential scans. Ths corrected values for "S" were reviewed against the calculations for surface proximity and value for "Y" and found to have no impact on the acceptability of the indications. 6$$% . Y U A W b ..Db Thomas Jones Lvl lil Tin Tran'lSI Program 14ngr Jeff Ricker Sept M&SP a_Zo_.x 70 l Rwtf 9?-o/MEL , J}}