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UTL-U"-SP 10 L | 4 ,. . | ||
1:ic'n' | ' 9. - Special ?rocecura for Ul:rasonic . PROCEDURE: UTL-U"-SP 10 L | ||
s DAT ISSCED: 8/17/79 | ~!: | ||
a;;2ain;;;ica of .iu. - 1:ic 'n' elds l_.- | |||
~..EFFEC'"IVE DATE: 8/17/79 | ~ | ||
REVIS!O:. : 4 k2at::aL/Ca .:urre''.ca : | |||
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.l 4' | s M f/) DAT ISSCED: 8/17/79 - | ||
~J.G-Uni:'l' | |||
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~Exahi ncion of Austenitic Welds | PRO.CCT: . . | ||
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EFFEC'"IVE DATE: 8/17/79 | |||
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AP? ROVED SE: 3g., ; '' | |||
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LIST OF EFFECTIVE PAGES REVISIO;; DATE t 4 , | |||
a/17/79,' | |||
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3/17/79 4 4- 8/17/79 5 4 l' 8/17/79 6 4 8/17/79 7 4 S/17/79 | |||
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UT1.-UT-SP 10 7 Special Proce . ire for Ultrasonic Revision 4 | |||
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Exahi ncion of Austenitic Welds 8/17/79 | |||
,' Page 2 ' | |||
( l.0 SCOPE | |||
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l.1 This procedure provides the require =entstand =ethod for, performing examination of austenitic welds for the detection.of: inter granular.s. tress corrosion | |||
* cracking. , | |||
1.2 This procedure is implemented to examine tiie weld heat affected zones only. | |||
This procedure is designed to examine welds from 1/8" to 1.25" thick. | This procedure is designed to examine welds from 1/8" to 1.25" thick. | ||
1.2.1 See attachment #5 for weld joints. - | 1.2.1 See attachment #5 for weld joints. - | ||
*1.3. This procedure provides a two step screening disposition. | * 1.3. This procedure provides a two step screening disposition. | ||
1.3.1 Step one entails a highly sensitive technique, susceptible to reflectors very small in size of nu=craus- origins. | 1.3.1 Step one entails a highly sensitive technique, susceptible to reflectors very small in size of nu=craus- origins. | ||
.1.3.2 Step two entails a highly sensitive' technique which is not as susceptible to small reflectors (as step #1) nor.is it as vulnerable to geometry. | . | ||
2.0 2CFEP.ENCES 2..ASLE Sectica X~, 1974 adition, Sun er 1975 J.dcenda, paragraph D.A-2210, 2.2 ASME Section V, Article 4,1977 Edition, Su==er Addenda | 1.3.2 Step two entails a highly sensitive' technique which is not as susceptible to small reflectors (as step #1) nor.is it as vulnerable to geometry. | ||
!(2.3 SNT-TC-1A, 1975 Edition. | 2.0 2CFEP.ENCES 2.. ASLE Sectica X~, 1974 adition, Sun er 1975 J.dcenda, paragraph D.A-2210, 2.2 ASME Section V, Article 4,1977 Edition, Su==er Addenda | ||
-, 3.0 PROCEDURE OUALIFICATION 3.1 This procedure will be considered qualified'by satisfactory calibration checks before and af ter examinations .(Ref. 6.3) and/or by comparison with radiographs fran welds with known defects. | !( 2.3 SNT-TC-1A, 1975 Edition. | ||
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.1 All Lecel -~ | , | ||
crearnel shall be cualiffed ir accordance with CTL Personnel' | 3.0 PROCEDURE OUALIFICATION 3.1 This procedure will be considered qualified'by satisfactory calibration checks before and af ter examinations .(Ref. 6.3) and/or by comparison with radiographs fran welds with known defects. . | ||
..-.. . . - w ., g _;7 _ | 4.0 PERSONNEL QUAL:FICATICNS | ||
.1 All Lecel -~ crearnel shall be cualiffed ir accordance with CTL Personnel' | |||
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.2 Level I an:. (cr) lerel ;; perscr.ne. sna.1 assist in :.peratic..s nd obtaining data. .' | |||
4.3 All interpretation and evaluat,ica as well as calibration shall be performed by . | |||
$,,c c!l' r.i. . im r e tbr !:ltr.asonic t :[, t ; si 10 | level Il or Level III personnel only. , | ||
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5.0 INSTRL72NTS ; | |||
-applicable.- i'5.3.2 A 60 transducer shall be used for step two screening. (See 8.0 evaluation. | ' | ||
5.1 Ultrasonic pulse-echo type of instrument shall be used which sha 1 be capable of transmitting and receiving synchronized sound energy in frequencies.of 1-10 =hz. | |||
5.2 Probes mzy consist of pulse echo and/or transmit-receive types. O D | |||
.4 D D oo Op~~ | ObiM | ||
-Examination of Austenitic Welds Revision 4 | ~ | ||
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$,,c c ! l' r.i. . im r e tbr !:ltr.asonic t :[, t ; si 10 , | |||
"x.i-i n.it ion a f .\u:.t en it ic 'de ld s in v . 4 r. | |||
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5.3 Trans&ccr angles shall be within t.he range of 450 - 60 (+ 2 ). | |||
5.3.1 Angles of 45 and 50 shall be used.for step one screening where | |||
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applicable. -i | |||
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5.3.2 A 60 transducer shall be used for step two screening. (See 8.0 | |||
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evaluation. | |||
5.4 Transducersize shall be 1/4" to 1/2" wide 'for angle beam inspection. A straight beam transducer shall be 1/4" ) to 3/4" 4, for determining wall thickness. . | |||
5.5 Transducer frequency within the range of 2 shz and 5 =hz cay be used in conjunction with varied =achine settings. | |||
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Special Proce & r. for Ultrasonic UTL-UT-SP 10 | |||
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Examination of Austenitic Welds | |||
* Revision 4 | |||
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8/17/79 | |||
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. Page 4 - | |||
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{ 5.6 Cables shall not exceed 12' in length. . | |||
5.7 Couplant shall consist of Hamikleer, Exosen #20, or equivalent to ensure continous coupling contacf. . | |||
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6.0 CALIBRATION DESCRIPTIO: | |||
6.1 Sweep range shall be determined using IIW b,1.ocks or step wedge. | 6.1 Sweep range shall be determined using IIW b,1.ocks or step wedge. | ||
6.2 Amplitude calibration shall be determined using 5% or 10% notches and/or side drilled holes. | 6.2 Amplitude calibration shall be determined using 5% or 10% notches and/or side drilled holes. - | ||
i;0TE: Amplitude shali e approximately 100% FSH from the 55 or 10% | |||
notch on applicable test standard. fio DAC curve is required. | notch on applicable test standard. fio DAC curve is required. | ||
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Calibrction shall be verified at the begir.ning of each examination, not T. Ore than every 4 hours, any change in. equipment, change in | . | ||
%, 3 | ' 4 6.3 As per frequency of calibration verification. | ||
7.0 SYSTEM CALIECATIC'; (SWEE? C;3E) p (2Lo] | Calibrction shall be verified at the begir.ning of each examination, not T. Ore than every 4 hours, any change in. equipment, change in %, 3 persor.nel and at the end of examination. (w) , ', | ||
.5" depth for thicknesses of .100 to .500 to be inspected. | 7.0 SYSTEM CALIECATIC'; (SWEE? C;3E) p (2Lo] | ||
7.1 Full screen width shall represent .5" depth for thicknesses of .100 to .500 to be inspected. % %.M t | |||
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Full screen width shall represent 2.5" depth for a thickness of .900 (< 7) 7.1.} to 1.3" to be inspected. | |||
7.1.2 Full screen utdth shall represent 1.0" depth for thicknesses over .500 to .300 to be inspected. | 7.1.2 Full screen utdth shall represent 1.0" depth for thicknesses over .500 to .300 to be inspected. | ||
'7.2 Position search unit for a maximum response.from the corner of | ' | ||
.2" on step we:ge. | 7.2 Position search unit for a maximum response.from the corner of .2" on step we:ge. Adj st left edge of this signal to line 4 on the screen With the delaf CC"!rol. | ||
Adj st left edge of this signal to line 4 on the screen With the delaf CC"!rol. | .:.' :::itier _ . :r _-i | ||
.:.':::itier _ . :r _-i | ' a m i r -e::. a "$- ::.e : r;er of .a" s:e;. .en . . | ||
'a m i r -e::. a "$- ::.e : r;er of.a" | ~ 4 5: :J: edce cf .. m .._c ~ i. ::-l ; .e 2 .:. the :;r en witt :ce n :an al caliara:ica. , | ||
~ i. ::-l ; .e 2 .:. the :;r en | * 7.2.2 Repeat calay and Taterial calibration control acJustments until the | ||
* two sicr.als start at precisely Lines 4 and S. . | |||
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7.2.3 Check c:rner reflectors on *.3. wedge and a .5 wedge. These should now. , | |||
break tha base line at Lines 6' and 10. t 7.2.4 Each division on the sweep nodis equal to .050 metal depth. | |||
*.3. wedge and a .5 wedge. | . | ||
These should now. | 7.2.5 For wall thickness of .9 to 1.3" the corner of the IIW block will be used in :enjunction with the .5 step | ||
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t 7.2.4 Each division on the sweep nodis equal to .050 metal depth. | wedge. | ||
.7.2.5 For wall thickness of .9 to 1.3" the corner of the IIW block will be used in :enjunction with the .5 step wedge. | k 1 | ||
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.Special Peacedur.: for Ultrasanic UTL-UT-5P 10 | ,. | ||
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Special Peacedur.: for Ultrasanic UTL-UT-5P 10 ~ | |||
Examinatic.n of Austenitic Welds Revision 4 3/17/79 | |||
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f 7.2.5 Position search unit for maximum response frcm bottom corner of | |||
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IIW bicck. Adjust left edge of' signal to line i4 on the screen with delay control. , | |||
7.2.7 Positien search unit for maximum response from the top corner of IIW bicck on full "V" path. Adjust the left edge of this signal to line #8 with the material calibration.' | |||
7.2.8 Repeat delay and material calibration control adjustments until the two signals start at precisely lines' 4 and 8. | 7.2.8 Repeat delay and material calibration control adjustments until the two signals start at precisely lines' 4 and 8. | ||
7.2.9 Each division on the sweep now is equal to 1/8" (.1251 metal depth. | 7.2.9 Each division on the sweep now is equal to 1/8" (.1251 metal depth. | ||
7.2.10 For wall thicknesses of .500 to .900 position search unit for maximuni rescanse from the corner of the .500 step wecge. Adjust lef t edge,of this signal to line #5 on the screen with the delay control. | 7.2.10 For wall thicknesses of .500 to .900 position search unit for maximuni rescanse from the corner of the .500 step wecge. Adjust lef t edge,of this signal to line #5 on the screen with the delay control. | ||
7.2.11 Position search unit for maximum response from the corner of the n | 7.2.11 Position search unit for maximum response from the corner of the ' | ||
Q | n 1.0" bic:k. Adjust lef t edge of this s,ienal to line #10 on the > | ||
1;Che:k.carner reflectors on various othe~r.. step blocks to determine (c= | screen ;itn the material calibra: ion. | ||
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p 7.3 System Calibration (sensitivity) 7.3.1 Sensicivity shall be cbtained from the 105 or 55 notch cut on the I.D. | Q 7.2.12 Repeat delay ar.d aterial calibratien c:ntrol adjustments until t b- Mc - | ||
two signals start at precisely lines 5 and 10. 1 ; | |||
Che:k.carner reflectors on various othe~r.. step blocks to determine " (c= | |||
7.2.13 | |||
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' { accuracy. b [.g', ca c e w-7.2.14 Each screen division is now equal to .100 metal depth. p 7.3 System Calibration (sensitivity) 7.3.1 Sensicivity shall be cbtained from the 105 or 55 notch cut on the I.D. | |||
of the applicable standard. | of the applicable standard. | ||
Stand.rds cre ss f llexs: | Stand.rds cre ss f llexs: .. | ||
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.7.3.2 Positien search unit to obtain maximum response from 105 r.otch on | . .. | ||
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Scanning~will be performed at this level. | . .- ., | ||
This is to refrain from' aver saturation of material. | - | ||
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.7.4.i The heat affected 2one shall be examined.from both sides of the | .x. r.o . . . | ||
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...s : ., 3 -c.cci S. g .-23-e.-L. | |||
~7M The angle beam search unit shall be aimed. at right angles to the weld axis, viith the search unit being oscillated approximately 20 | . | ||
~off the normal . | , | ||
.500 to .900 '.: ail Thickness - Block SF-29-W-2C - | |||
.900 tc 1.3 '..all Thickness - Block F.ET-ED-019 | |||
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7.3.2 Positien search unit to obtain maximum response from 105 r.otch on . | |||
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the first leg of "','" path. 1 1 | |||
7.3.3 Adjust gain control to bring sjgnal amplitude to 1005 FSH. Scanning ~ | |||
will be performed at this level. This is to refrain from' aver saturation of material. , | |||
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UTL-UT-SP 10 Special Procedure For U1trasonic Rev. 4 [ | |||
ExaMn;. tion of Austenitic Welds 9/17/79 | |||
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7.4 Directions and Extent of Examination | |||
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7.4.i The heat affected 2one shall be examined.from both sides of the ' | |||
weld where possible. Where co'nfiguration or adjacent parts of the ' | |||
component are such that scanning from bo'th sides is not feasible, this fact shall be included in,the report of the examination. | |||
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7M The angle beam search unit shall be aimed. at right angles to the | |||
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weld axis, viith the search unit being oscillated approximately 20 | |||
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off the normal . | |||
7.4.3 Scan shall censist of a minimum 10% overlap at a rate of six (6) inches per sec. maximum speed. | |||
7.4.4 Scan coverage shall consist of 2T each s'ide of weld, where applicable. | 7.4.4 Scan coverage shall consist of 2T each s'ide of weld, where applicable. | ||
See 7.4.1. | See 7.4.1. - | ||
7.4.5 All scan surfaces are tc be measured with a straight beam transducer to provide actual wall thickness, in order to prcperly evaluate reflectcrs. | |||
7.4.6 All surfaces shall be free of locse scale, dirt, vield spacter or anything that wculd inhibit the transmission of ultrascund. | 7.4.6 All surfaces shall be free of locse scale, dirt, vield spacter or anything that wculd inhibit the transmission of ultrascund. | ||
EV ALUATIC.' | j( 8.0 EV ALUATIC.' . | ||
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(+, | 8.7 Any discernable reflector violating the inner wall, in the Heat Affected Icre, will be evaluated as Stress Corrosion Cracking. | ||
8.1.1 Evaluation (screening) will be performed using a 60 U | |||
(+,20) shear wave oi 2.25 cha nominal frequency. , | |||
:--e; #rc: 10..achined: d in:.._-. .- ;~-. w-- | S.2 All irf:rmaticn cbtained will be recorded an Attachments #3 and #6 where applicable. | ||
: . '. .:alibra-i y #:- C 2 | |||
, , | scree- n: nev :e :-- e; #rc: 10.. achined : d in: | ||
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S. .500 - | |||
IGA =1 ,' | |||
S.3.1 posit'or searc". ur.it for maximum response frca 10% notch on IGA-#2. . | |||
Adjust ieft edge of signal ,to division #5 on the screen with delay | |||
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centro . i t | |||
8.3.2 Position search unit for maximum response from 10: notch or IGA-pl. | |||
Adjust lef t edge of this sign'al to divisi'on #7 on the screen with tne ma:erial calibration. | Adjust lef t edge of this sign'al to divisi'on #7 on the screen with tne ma:erial calibration. | ||
g D | I g D | ||
8.3.4 Position search unit for maxibus response from 10% machine notch | ( UO h, a : o n1 O _, | ||
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Special Procedure for Ultrasonic UTL-UT-SP 10 F>,acination ;f Austenitic k' elds Rev. 4 | |||
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8/17/79 . | |||
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8.3.3 Repeat delay and material calibration control adjustments until the two signals start at precisely divisions #5 and #7. | |||
8.3.4 Position search unit for maxibus response from 10% machine notch , | |||
on either block. Adjust gain, control until signal response is 50% | |||
full screen height (FSH). | full screen height (FSH). | ||
, 8.3.5 Position search unit for maximum response from 10% machine notch on the opposite block used in step 8.3.4. 'Any difference > 10% of referenced level shall be brought to th'e attention of the Level III. | , | ||
8.3.5 Position search unit for maximum response from 10% machine notch on the opposite block used in step 8.3.4. 'Any difference > 10% of referenced level shall be brought to th'e attention of the Level III. | |||
8.4 All indications exceeding 30% FSH in the area of concern will be recorded on Attach =ent #6. | 8.4 All indications exceeding 30% FSH in the area of concern will be recorded on Attach =ent #6. | ||
9.0 RECORDISC. | - | ||
9.0 RECORDISC. . | |||
( | 9.1 For each ultrasonic examination the following information shall be recorded on Attachments #1 - #4 as applicable. (500 only) 9.2 Procedura 9.3 UT equipment 9.4 Exa=iration Personnel and Levels | ||
' , '9.6 ITeld idenrification and icoation 9.7 Surface of examina:1cn 9.S Calibration block nu .ber | ( 9.5 | ||
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Calibration sheet identity ',' | |||
9.6 ITeld idenrification and icoation 9.7 Surface of examina:1cn | |||
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9.S Calibration block nu .ber 9.9 Record of indicaticas | |||
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: 9. M Jate and zi e af examination | : 9. M Jate and zi e af examination | ||
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... :; plan: | |||
9.12 Ftequency , | |||
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9.13 Surface cc:.ditien . | |||
c:7E (S }. | 4 | ||
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9.14 Special equipment , | |||
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5 m , | |||
C/,t. cue DATE U-e STRU.ve. .- | $ | ||
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!l ' .' | ( 3 ]3d @ . | ||
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.4AKE 5/N ANGLE SIZE E X T ' P T. | . | ||
M AT ERI AL FRECUENCY w!t!..!i | , / 4* l C c 4_ | ||
* 6 | t | ||
CAL.*SLQCX | |||
'F SPEC: MEN TESTEC | e.n - | ||
'F.TIME:.q c. 7 | if''. | ||
...-..- . . . . | - .Wt f!VE R S A G..TESTIN G CA S O R ATO R IES , -- n - _ , . _ _ _ _ | ||
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UIL-UT-SP 10 | ',,' I | ||
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cweagency otoo, e' 8 's/12279 | |||
. s o ro ato se a v a nu t Ct24m caovc I | |||
Procedu're: UTL-UT-SP 10 , | |||
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.O r,) Cf' | Rev. 4 | ||
-5cc t ,- 12. d | ,( TEcENIquE CALIB?ATION Ati0 QUALIFICATION rec ao (Attach:.ent !1) . | ||
._se3. iuc_.! COARSE l lNE | I NO. PROCEDURE NO. c:7E (S }. | ||
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I ?:0. LASCRATORY | |||
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".. _ - | . TECMraC:AN aLEVEL . . | ||
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: .%0. SYSTEM CUSTC.'d- ER . | |||
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,-p...., | 'UT.' TEST EQUI. MENT' uccEL sEs:AL NC. C/,t. cue DATE MAxE | ||
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U- e STRU.ve. .- . | |||
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*DATE ,JOC t.O.a asrio,<, ias | TYFE , | ||
OU.:LAttT O (P 10Q | |||
u n.~ Us-SP-./O | ", llj l 1O ENTi.fic AT ON k CASLES- e s rm n n n ~\n n C | ||
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SYSTEM CUSTO!.lER | * i l ' .' | ||
'''7 CT- 6~D C /?/. /.DJHs T-/ ) | kf ){h ul l l' I l L) f /h) | ||
Jd}D SHCCC I | |||
toe.vri; r e a rrod on | ^ EvIs!c' | ||
"* fft*NG NG* | |||
RATION .. | |||
I /( JCK | |||
..--.A l ! .A d i M,- P. N, I | _ i | ||
P. o * | : s. CH UNIT .4AKE 5/N ANGLE SIZE E X T ' P T. M AT ERI AL FRECUENCY w | ||
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s PRfC: 'TC E Y a,'at * . 2 *4TI C ?1 | |||
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~EMPER AiURE : CAL.*SLQCX 'F SPEC: MEN TESTEC 'F. | |||
TIME: | |||
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,4l t {J SIGN ATURE , | |||
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_ - = ~ ~ _ __ | |||
t - 1 ecsa= cao<< acw se st, orso-Sheet 8 L | |||
' a re ec-aro~ av tau t | |||
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Procedure: UIL-UT-SP 10 d:e Rev./4 - | |||
8/17 | |||
( At.tacht.12nt .~2) /79 | |||
* SYSTE.'i CA .II?ATION .00 C.UAI.IFICATIQ R.5CO?.D , | |||
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Revision as of 15:29, 19 October 2019
| ML19207C455 | |
| Person / Time | |
|---|---|
| Site: | Three Mile Island  |
| Issue date: | 08/17/1979 |
| From: | Palmer R UNIVERSAL TECHNICAL TESTING LABORATORIES, INC. |
| To: | |
| Shared Package | |
| ML19207C454 | List: |
| References | |
| UTL-UT-SP-10, NUDOCS 7909110644 | |
| Download: ML19207C455 (13) | |
Text
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' 9. - Special ?rocecura for Ul:rasonic . PROCEDURE: UTL-U"-SP 10 L
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EFFEC'"IVE DATE: 8/17/79
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LIST OF EFFECTIVE PAGES REVISIO;; DATE t 4 , a/17/79,' 2 4 - 3/17/79 3 4 . 3/17/79 4 4- 8/17/79 5 4 l' 8/17/79 6 4 8/17/79 7 4 S/17/79
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UT1.-UT-SP 10 7 Special Proce . ire for Ultrasonic Revision 4
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Exahi ncion of Austenitic Welds 8/17/79
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( l.0 SCOPE
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l.1 This procedure provides the require =entstand =ethod for, performing examination of austenitic welds for the detection.of: inter granular.s. tress corrosion
- cracking. ,
1.2 This procedure is implemented to examine tiie weld heat affected zones only. This procedure is designed to examine welds from 1/8" to 1.25" thick. 1.2.1 See attachment #5 for weld joints. -
- 1.3. This procedure provides a two step screening disposition.
1.3.1 Step one entails a highly sensitive technique, susceptible to reflectors very small in size of nu=craus- origins.
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1.3.2 Step two entails a highly sensitive' technique which is not as susceptible to small reflectors (as step #1) nor.is it as vulnerable to geometry. 2.0 2CFEP.ENCES 2.. ASLE Sectica X~, 1974 adition, Sun er 1975 J.dcenda, paragraph D.A-2210, 2.2 ASME Section V, Article 4,1977 Edition, Su==er Addenda !( 2.3 SNT-TC-1A, 1975 Edition.
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3.0 PROCEDURE OUALIFICATION 3.1 This procedure will be considered qualified'by satisfactory calibration checks before and af ter examinations .(Ref. 6.3) and/or by comparison with radiographs fran welds with known defects. . 4.0 PERSONNEL QUAL:FICATICNS
.1 All Lecel -~ crearnel shall be cualiffed ir accordance with CTL Personnel'
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.2 Level I an:. (cr) lerel ;; perscr.ne. sna.1 assist in :.peratic..s nd obtaining data. .'
4.3 All interpretation and evaluat,ica as well as calibration shall be performed by . level Il or Level III personnel only. ,
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5.0 INSTRL72NTS ;
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5.1 Ultrasonic pulse-echo type of instrument shall be used which sha 1 be capable of transmitting and receiving synchronized sound energy in frequencies.of 1-10 =hz. 5.2 Probes mzy consist of pulse echo and/or transmit-receive types. O D ObiM
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5.3 Trans&ccr angles shall be within t.he range of 450 - 60 (+ 2 ). 5.3.1 Angles of 45 and 50 shall be used.for step one screening where
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applicable. -i
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5.3.2 A 60 transducer shall be used for step two screening. (See 8.0
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evaluation. 5.4 Transducersize shall be 1/4" to 1/2" wide 'for angle beam inspection. A straight beam transducer shall be 1/4" ) to 3/4" 4, for determining wall thickness. . 5.5 Transducer frequency within the range of 2 shz and 5 =hz cay be used in conjunction with varied =achine settings.
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Special Proce & r. for Ultrasonic UTL-UT-SP 10
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Examination of Austenitic Welds
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{ 5.6 Cables shall not exceed 12' in length. . 5.7 Couplant shall consist of Hamikleer, Exosen #20, or equivalent to ensure continous coupling contacf. .
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6.0 CALIBRATION DESCRIPTIO: 6.1 Sweep range shall be determined using IIW b,1.ocks or step wedge. 6.2 Amplitude calibration shall be determined using 5% or 10% notches and/or side drilled holes. - i;0TE: Amplitude shali e approximately 100% FSH from the 55 or 10% notch on applicable test standard. fio DAC curve is required.
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' 4 6.3 As per frequency of calibration verification.
Calibrction shall be verified at the begir.ning of each examination, not T. Ore than every 4 hours, any change in. equipment, change in %, 3 persor.nel and at the end of examination. (w) , ', 7.0 SYSTEM CALIECATIC'; (SWEE? C;3E) p (2Lo] 7.1 Full screen width shall represent .5" depth for thicknesses of .100 to .500 to be inspected. % %.M t ![
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Full screen width shall represent 2.5" depth for a thickness of .900 (< 7) 7.1.} to 1.3" to be inspected. 7.1.2 Full screen utdth shall represent 1.0" depth for thicknesses over .500 to .300 to be inspected.
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7.2 Position search unit for a maximum response.from the corner of .2" on step we:ge. Adj st left edge of this signal to line 4 on the screen With the delaf CC"!rol.
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- 7.2.2 Repeat calay and Taterial calibration control acJustments until the
- two sicr.als start at precisely Lines 4 and S. .
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7.2.3 Check c:rner reflectors on *.3. wedge and a .5 wedge. These should now. , break tha base line at Lines 6' and 10. t 7.2.4 Each division on the sweep nodis equal to .050 metal depth.
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7.2.5 For wall thickness of .9 to 1.3" the corner of the IIW block will be used in :enjunction with the .5 step
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Special Peacedur.: for Ultrasanic UTL-UT-5P 10 ~ Examinatic.n of Austenitic Welds Revision 4 3/17/79
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f 7.2.5 Position search unit for maximum response frcm bottom corner of
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IIW bicck. Adjust left edge of' signal to line i4 on the screen with delay control. , 7.2.7 Positien search unit for maximum response from the top corner of IIW bicck on full "V" path. Adjust the left edge of this signal to line #8 with the material calibration.' 7.2.8 Repeat delay and material calibration control adjustments until the two signals start at precisely lines' 4 and 8. 7.2.9 Each division on the sweep now is equal to 1/8" (.1251 metal depth. 7.2.10 For wall thicknesses of .500 to .900 position search unit for maximuni rescanse from the corner of the .500 step wecge. Adjust lef t edge,of this signal to line #5 on the screen with the delay control. 7.2.11 Position search unit for maximum response from the corner of the ' n 1.0" bic:k. Adjust lef t edge of this s,ienal to line #10 on the > screen ;itn the material calibra: ion.
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Q 7.2.12 Repeat delay ar.d aterial calibratien c:ntrol adjustments until t b- Mc - two signals start at precisely lines 5 and 10. 1 ; Che:k.carner reflectors on various othe~r.. step blocks to determine " (c= 7.2.13 , ' { accuracy. b [.g', ca c e w-7.2.14 Each screen division is now equal to .100 metal depth. p 7.3 System Calibration (sensitivity) 7.3.1 Sensicivity shall be cbtained from the 105 or 55 notch cut on the I.D. of the applicable standard. Stand.rds cre ss f llexs: ..
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.500 to .900 '.: ail Thickness - Block SF-29-W-2C -
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7.3.2 Positien search unit to obtain maximum response from 105 r.otch on .
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the first leg of "','" path. 1 1 7.3.3 Adjust gain control to bring sjgnal amplitude to 1005 FSH. Scanning ~ will be performed at this level. This is to refrain from' aver saturation of material. ,
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UTL-UT-SP 10 Special Procedure For U1trasonic Rev. 4 [ ExaMn;. tion of Austenitic Welds 9/17/79
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{ - 7.4 Directions and Extent of Examination
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7.4.i The heat affected 2one shall be examined.from both sides of the ' weld where possible. Where co'nfiguration or adjacent parts of the ' component are such that scanning from bo'th sides is not feasible, this fact shall be included in,the report of the examination.
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7M The angle beam search unit shall be aimed. at right angles to the
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weld axis, viith the search unit being oscillated approximately 20
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off the normal . 7.4.3 Scan shall censist of a minimum 10% overlap at a rate of six (6) inches per sec. maximum speed. 7.4.4 Scan coverage shall consist of 2T each s'ide of weld, where applicable. See 7.4.1. - 7.4.5 All scan surfaces are tc be measured with a straight beam transducer to provide actual wall thickness, in order to prcperly evaluate reflectcrs. 7.4.6 All surfaces shall be free of locse scale, dirt, vield spacter or anything that wculd inhibit the transmission of ultrascund. j( 8.0 EV ALUATIC.' .
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8.7 Any discernable reflector violating the inner wall, in the Heat Affected Icre, will be evaluated as Stress Corrosion Cracking. 8.1.1 Evaluation (screening) will be performed using a 60 U (+,20) shear wave oi 2.25 cha nominal frequency. , S.2 All irf:rmaticn cbtained will be recorded an Attachments #3 and #6 where applicable.
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S. .500 - IGA =1 ,' S.3.1 posit'or searc". ur.it for maximum response frca 10% notch on IGA-#2. . Adjust ieft edge of signal ,to division #5 on the screen with delay
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centro . i t 8.3.2 Position search unit for maximum response from 10: notch or IGA-pl. Adjust lef t edge of this sign'al to divisi'on #7 on the screen with tne ma:erial calibration. I g D ( UO h, a : o n1 O _,
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Special Procedure for Ultrasonic UTL-UT-SP 10 F>,acination ;f Austenitic k' elds Rev. 4
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8/17/79 .
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8.3.3 Repeat delay and material calibration control adjustments until the two signals start at precisely divisions #5 and #7. 8.3.4 Position search unit for maxibus response from 10% machine notch , on either block. Adjust gain, control until signal response is 50% full screen height (FSH).
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8.3.5 Position search unit for maximum response from 10% machine notch on the opposite block used in step 8.3.4. 'Any difference > 10% of referenced level shall be brought to th'e attention of the Level III. 8.4 All indications exceeding 30% FSH in the area of concern will be recorded on Attach =ent #6.
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9.0 RECORDISC. . 9.1 For each ultrasonic examination the following information shall be recorded on Attachments #1 - #4 as applicable. (500 only) 9.2 Procedura 9.3 UT equipment 9.4 Exa=iration Personnel and Levels ( 9.5
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Calibration sheet identity ',' 9.6 ITeld idenrification and icoation 9.7 Surface of examina:1cn
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9.S Calibration block nu .ber 9.9 Record of indicaticas
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9.12 Ftequency ,
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9.13 Surface cc:.ditien . 4
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