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ASME SECTION IX INTERPRETATIONS

NOTE: THESE INTERPRETATIONS ARE FOR ASME COMMITTEE USE ONLY.

THEY ARE NOT TO BE DUPLICATED OR USED FOR OTHER THAN ASME

COMMITTEE BUSINESS.

WARNING: THERE MAY BE SOME TYPOGRAPHICAL ERRORS IN THIS

DOCUMENT. PLEASE REVIEW THE ACTUAL INTERPRETATION FOR THE EXACT

WORDING.

TO GET A PRINTED COPY OF AN INTERPRETATION, FIRST HIGHLIGHT

THE PORTION DESIRED, THEN GOTO File ON THE TOOLBAR, THEN Prin... ,

THEN HIGHLIGHT THE DOT AT THE !Sele"i#n BUTTON, FINALLY PRESS THE

O$ BUTTON. BE CAREFUL NOT TO PRINT THE ENTIRE DOCUMENT (1 Page).

Iner%re&i#n: IX'((')*

Subject: Section IX, Tack Welder Qualification

+e-i#n: May a welder be qualified as a tack welder if his tack welds were a part of another

welders qualification test coupon or part of another weldin! procedure qualification test which

"et the intent of the #ode$

Re%l: The #ode requires that all welders, %includin! tack welders&, "ust be qualified per

Section IX'

Iner%re&i#n: IX'(/'01

Subject: Section IX, QW()**, +lu #ored -rc Weldin!

+e-i#n: .oes !as "etal(arc weldin! %/M-W& in the procedure qualification and

perfor"ance qualification refer also to flu cored arc weldin! %+#-W&$ If so, should welders bequalified separately under both processes$

Re%l: +lu cored arc weldin! %+#-W& is per"issible under the #ode and is considered toco"e under the "ore !eneral "ethod of weldin! known as !as "etal(arc weldin! %/M-W&'

Welders do not ha0e to be qualified separately unless there is a chan!e in any of the 1ssential

2ariables' 3owe0er, there is an 1ssential 2ariable for procedure qualification, QW(454')6, that

requires separate qualification for solid wire and for flu cored wire for the /M-W process'

Iner%re&i#n: IX'(/'(1

Subject: Section IX, QW(7*6%d&

+e-i#n: QW(7*6'7%d& per"its acceptance of the tension test if the speci"en breaks in the base

"etal outside of the weld or fusion line where the stren!th is not "ore than *8 below the

specified "ini"u" tensile stren!th of the base "etal' What are the require"ents if the speci"en

breaks in the weld or fusion line$

Re%l: If the tension test speci"en breaks in the weld or fusion line, it shall ha0e a tensile

stren!th not less than that required in QW(7*6'7%a&, %b&, or %c&'

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Iner%re&i#n: IX'/1')/

Subject: Section IX, QW()55'4

+e-i#n !02: 9er QW()55'4%a&, "ay two or "ore separate W9Ss %each properly qualified to

weld the joint indi0idually& be used to weld a sin!le production joint without writin! a new W9S

co"binin! the separate W9Ss into a sin!le W9S$

eply %7&: ;es'

+e-i#n !32:.oes QW()77'4%a& per"it the referencin! of a separately qualified W9S to co0er

the root pass weldin! of open root joints in another W9S$

eply %)&: ;es'

Iner%re&i#n: IX'/1'03

Subject: Section IX, QW(6**

.ate Issued: .ece"ber 4, 7#=*(4=)

Question: Is +#-W included with /M-W in QW(6**$

eply: ;es'

Iner%re&i#n: IX'/1'*1

Subject: Section IX, QW(6**

.ate Issued: ?o0e"ber )4, 7#=@()7ase Metals.ate Issued: Aune 4, )557

+ile ?o: 55(4B5

Question %7&: When a procedure qualification with supple"ental notch tou!hness require"ent is

conducted with one 9(?u"ber "aterial ha0in! "ultiple certifications in different /roup

?u"bers, are W9Ss qualified for all co"binations of the /roup ?u"bers$

eply %7&: ;es'

Question %)&: In the abo0e question, does one set of 3-K i"pact speci"ens, when required,

satisfy the require"ents of Section IX$

eply %)&: ;es'

Question %6&: When a procedure qualification with supple"ental notch tou!hness require"ent is

conducted with two "aterials of different 9(?u"ber each ha0in! "ultiple certifications indifferent /roup ?u"bers, are W9Ss qualified for all co"binations of the "ultiple certified /roup

?u"ber of the first 9(?u"ber "aterial to the "ultiple certified /roup ?u"ber of the second 9(

?u"ber "aterial$

eply %6&: ;es'

Question %4&: In the abo0e question, does one set of 3-K i"pact speci"ens fro" each 9(?u"ber

"aterial, when required, satisfy the require"ent of Section IX$

eply %4&: ;es'

Question %*&: In Question %6&, are "aterials fro" the "ultiple certified /roup ?u"bers qualified

for weldin! a 9(?u"ber "aterial to itself$

eply %*&: ?o'

?ote: The ter" E"ultiple certificationsF as used "eans any "aterial for which a "aterial test

report indicates that the "aterial "eets all the require"ents of two or "ore specifications, !rades,types, or classes'

Iner%re&i#n: IX'43'(0

Subject: QW(65)'4, 2isual 1a"ination

.ate Issued: Septe"ber )), 7

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docu"ented on the W9Q, required to requalify in order that 0isual ea"ination results "ay be

docu"ented$

eply: ?o'

Iner%re&i#n: IX'43'(3Subject: QW(6=7%c&, #orrosion esistant Weld Metal G0erlayD QW(4*6 and QW(4@7'

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Iner%re&i#n: IX'43'(*

Subject: Q>(45)'7, >ase Metals

.ate Issued: Septe"ber )), 7(

45)'7$

eply: ?o'

Iner%re&i#n: IX'43'(6

Subject: QW()55'4%b&, #o"bination of Weldin! 9rocedures


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eply %7&: ;es'

Question %)&: Will the abo0e procedure qualification alone support a W9S to "ake a butt weld

with 1B57= electrodes %+(?o' 4& for all the passes includin! the root pass within the li"its of

qualification of QW(4*7'7 and within the li"its of the essential 0ariables under QW()*6, SM-Wprocess$

eply %)&: ;es'

Iner%re&i#n: IX'43'(/

Subject: QW()55')%b&, Weldin! 9rocedure Qualifications


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Question: When a co"pany chan!es na"es durin! the course of ti"e "ust all the historical

docu"ents, such as 9Qs and W9Qs, be re0ised to show this new na"e$

eply: ?o, pro0ided there is docu"ented traceability fro" the new co"pany na"e to the W9Ss

and 9Qs qualified under the old co"pany na"e'

Iner%re&i#n: IX'43'/0

Subject: QW(756'7 and QW()57, Manufacturers or #ontractors esponsibility

.ate Issued: Gctober 7=, 7

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Iner%re&i#n: IX'43'/5

Subject: Q>(47*, >raJin! 2ariables


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eply: ;es' QW(755'6 allows weldin! procedure specifications %W9Ss& to be supported by

procedure qualifications acco"plished subsequent to 7

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Question: - welder has qualified on 6 in' G'.' in' wall pipe in the 7/ position and has also

qualified on 7 in' G'.' O in' wall pipe in the 7/ position' Is the welder qualified to weld 7 in'

G'.' in' wall in the 7/ position$

eply: ;es'

Iner%re&i#n: IX'43'4)

Subject: QW(4@7'

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Question %6&: .oes the client co"pany ha0e to requalify these procedures in order to perfor" in(

house "aintenance at a later date usin! all the sa"e essential and nonessential 0ariables with its

own qualified welders$

eply %6&: ;es'

Iner%re&i#n: IX'43'45

Subject: Q>(45)'7, >raJin! .ata and -ppendi # C ?on"andatory S(?u"bers

.ate Issued: May )5, 7

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.ate Issued: May )5, 7

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VOLUME 51

Iner%re&i#n: IX'46')0

Subject: QW()55'7%b&, /eneral Weldin! 9rocedure QualificationsD and QW(45)'4, Aoints.ate Issued: Septe"ber )7, 7ack!round: 9rocedure qualification was perfor"ed by "akin! a full penetration weld on 7 in'

thick plate' 9ara!raph QW()5)'6%b& states that qualification on 7 in' thick or thicker base "etal

qualifies for "akin! weld repairs or weld build(ups on base "etals of unli"ited thickness'

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Question %)&: .oes qualification on 7 in' base "etal qualify for "akin! weld repairs or weld

build(ups on base "etals which are less than 6H7@ in' thick$

eply %)&: ?o, see para' QW(4*7'7 for "ini"u" base "etal thicknesses'

Iner%re&i#n: IX'46')*Subject: QW(4*)'6, /roo0e Weld .ia"eter Li"its and Sub"er!ed -rc Wire +lu

#o"bination

.ate Issued: Septe"ber )7, 7(4)* ?S ?5==)* that is assi!ned 9(?o' 4* in QW(4))$

eply: ?o'


Subject: QW(7*6'7, Tension Tests

.ate Issued: Septe"ber )7, 7

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VOLUME 5(

Iner%re&i#n: IX'46')(

Subject: QW(4)5'), S(?u"bers.ate Issued: March 7B, 7

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Subject: QW()55'4, #o"bination of Weldin! 9rocedures

.ate Issued: March 7B, 7ase Metal Thicknesses

.ate Issued: March 7B, 7

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Question: -re there any circu"stances under which a non(e"ployee person or or!aniJation can

represent one or "ore participatin! or!aniJations durin! weldin! of the test coupon in accordance

with the require"ents of QW(655'6$

eply: ?o'


Subject: QW(7@5, /uided(>end TestsD and QW(4@@ ?ote %b& C Test Ai!s

.ate Issued: Aune 7*, 7

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+ile ?o:

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>ack!round: - 9Q is qualified in accordance with Section IX, with supple"entary essential

0ariables, usin! a "aterial fro" >ritish Standard 7*57())4(4

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Subject: QW()57, Manufacturers or #ontractors esponsibility

.ate Issued: March 7$

eply: ;es'



.ate Issued: March 7oth > and # now operate independently, but under

co"pany -'

Question: May co"pany > use the W9Ss and 9Qs initially de0eloped by > and also use W9Ss

and 9Qs qualified by co"pany # before the last reor!aniJation$

eply: ;es, pro0ided that the require"ents of QW()57 are satisfied'

Iner%re&i#n: IX'46'3(

Subject: QW()57, Manufacturers or #ontractors esponsibility.ate Issued: March 7

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eply: ?o'


Subject: QW()57, Manufacturers or #ontractors esponsibility.ate Issued: May 65, 7

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Question: -re these welders qualified to "ake the subject weld in accordance with QW(6@7'),

e0en thou!h the weldin! operator ha0in! direct 0isual control is directin! the positionin! of the

orbital pipe weldin! equip"ent 0erbally and does not ha0e Ehands(onF control of the weldin!

head$

eply: ;es'

VOLUME *)


Subject: QW(655'), Weldin! 9erfor"ance Qualifications

.ate Issued: Auly 7, 7uildup


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eply %7&: ;es'

Question %)&: If the deposit of the substrate is included in a hardfacin! weld "etal o0erlay

procedure qualified to QW()7@, is e0aluation of the substrate to QW()5)'6 or QW()74, asapplicable, required$

eply %)&: Section IX does not address qualification of a co"bination substrateHhardfacin! W9S

in a sin!le coupon'


Subject: QW(655'7, Weldin! 9erfor"ance Qualifications


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VOLUME *0

Iner%re&i#n: IX'46'5/

Subject: QW(6)), 1piration and enewal of Qualification.ate Issued: Aanuary @, 7 sold #o"pany - to

#o"pany #, and #o"pany - beca"e a di0ision of #o"pany #'

Question: May #o"pany - continue to use W9Ss and 9Qs pre0iously de0eloped by #o"pany>$

eply: It is the intent of the #oe that when a "anufacturer or contractor, or part of a

"anufacturer or contractor, is acquired by a new owner%s&, the 9Qs and W9Ss "ay be used by

the new owner%s& without requalification, pro0ided all of the followin! are "et:

%a& the new owner%s& takes responsibility for the W9Ss and 9QsD

%b& the W9Ss reflect the na"e of the new owner%s&D and

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%c& the Quality #ontrol Syste"HQuality -ssurance 9ro!ra" reflects the source of the 9Qs

as bein! fro" the for"er "anufacturer or contractor'

Iner%re&i#n: IX'46'*0

Subject: QW(4*6, 9rocedureH9erfor"ance Qualification Thickness Li"its and Test

Speci"ens for 3ardfacin! %Wear(esistant& and #orrosion(esistant G0erlays.ate Issued: March @, 7(747'4, Sectionin! Tests

.ate Issued: .ece"ber 7*, 7

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Iner%re&i#n: IX'4/')3


.ate Issued: .ece"ber 7*, 7

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Iner%re&i#n: IX'4/')1

Subject: QW(45)'7)%a& and %c& and QW(45)'7), Aoints

.ate Issued: -pril )=, 7

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+ile ?o:

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Question: -re all(enco"passin! ter"s acceptable when addressin! nonessential 0ariables in a

W9S %e'!, for backin!, Ewith or withoutF, for root spacin!, Eunli"itedF&$

eply: Section IX does not specify how nonessential 0ariables are to be addressedD howe0er, the

ter"s "ust pro0ide direction to the welderHweldin! operator for "akin! production welds to#ode require"ents'

Iner%re&i#n: IX'4/'0*

Subject: QW(6@7'), Machine Weldin! 2ariables for Weldin! GperatorsD and QW(6=7,

#orrosion(esistant Weld Metal G0erlay

.ate Issued: .ece"ber )), 7

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eply: ;es'

VOLUME *6

Iner%re&i#n: IX'4/'0(Subject: QW(4*6, 9rocedureH9erfor"ance Qualification Thickness Li"its and Test

Speci"ens for 3ard(+acin! %Wear esistant& and #orrosion(esistant G0erlays

.ate Issued: March )6, 7'

VOLUME *1

Iner%re&i#n: IX'4/'04

Subject: QW(454, +iller Metals


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Subject: QW()5)'4%b&, .issi"ilar >ase Metal Thickness

.ate Issued: Aune =, )555

+ile ?o:

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pro!ra"' The #oalition does not control production weldin! at either of the "anufacturin!

co"panies' Weld procedure qualifications perfor"ed by #o"pany # are controlled by #o"pany

-s Quality 9ro!ra"' Weld procedure qualifications perfor"ed by #o"pany > are controlled by

#o"pany >s Quality 9ro!ra" that has been appro0ed by #o"pany -' #o"pany # is on

#o"pany >s -ppro0ed 2endors List'

Question: Is it per"issible to consider the Weldin! #oalition as Ethe or!aniJation which hasresponsible operational control of production of the weld"ents to be "ade in accordance with

this #odeF, such that #o"pany > "ay use weld procedures qualified by #o"pany # and 0ice

0ersa$

eply: ?o'

Iner%re&i#n: IX')0')5

Subject: QW(7

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Iner%re&i#n: IX')0')1R

Subject: QW(475'*7, -dditionH.eletion of Gscillation %7

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Iner%re&i#n: IX')0')4

Subject: QW(6*@, Weldin! 2ariables

.ate Issued: +ebruary )@, )557+ile ?o: 57(56)

Question: - welder was qualified to 9(?o' 7 "aterial usin! the /T-W process without !as

backin! usin! +(?o' @ filler "aterial' Is he qualified to weld 9(?o' = "aterial usin! the /T-W

process with !as backin! usin! +(?o' @ filler "aterial, pro0ided all other essential 0ariables

re"ain the sa"e$

eply: ;es'

Iner%re&i#n: IX')0'0)

Subject: QW(744 and QW(7

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Question %*&: When usin! SW9Ss under -rticle 2 of Section IX, "ay a sin!le weldin! process

of a "ultiple SW9Ss be used to co"plete a weld$

eply %*&: ?o' ef' paras' QW(*45%a& and %c&'

Question %@&: When usin! SW9Ss under -rticle 2 of Section IX, "ay a sin!le process SW9S for

1B57= and a sin!le process SW9S for /T-W be used to co"plete a weld, assu"in! all other0ariables are within the SW9S para"eters$

eply %@&: ?o' ef' paras' QW(*45%a& and %c&'

Question %B&: When usin! SW9Ss under -rticle 2 of Section IX, "ay a sin!le process SW9S for

1B57= and a sin!le process SW9S for 1@575 be used to co"plete a weld, assu"in! all other

0ariables are within the SW9S para"eters$

eply %B&: ?o' ef' paras' QW(*45%a& and %c&'

Iner%re&i#n: IX')0'03Subject: QW(6))')%a& and QW(4*)'7, ule #han!e -ffectin! Welder Qualification

.ate Issued: Aune 4, )557

+ile ?o: 57()57

>ack!round: -SM1 Section IX, )555 -ddenda, re0ised Table QW(4*)'7 reducin! the coupon

siJe fro" in' to in' to qualify the welder for EMai"u" to be weldedF when weldin! a

"ini"u" of three layers'

Question %7&: - welder qualified prior to the )555 -ddenda, and has re"ained qualified since his

ori!inal test' 3is ori!inal test coupon consisted of at least three weld layers and !reater than in'

but less than in' deposited weld "etal' May the qualification recorded be re0ised fro" E)tF to

EMa' to be weldedF subsequent to the )555 -ddenda$

eply %7&: ;es'

Question %)&: - welder was qualified prior to the )555 -ddenda' 3is qualification has lapsed

due to not weldin! with the ori!inal weld process for !reater than @ "onths' 3is ori!inal test

coupon consisted of at least three layers and !reater than in' but less than in' deposited weld"etal' 3is renewal restores his ori!inal qualifications in accordance with QW(6))')%a&' May the

ori!inal qualification record be re0ised fro" E)tF to EMa' to be weldedF subsequent to the )555

-ddenda$

eply %)&: ;es'

Iner%re&i#n: IX')0'05

Subject: eferences to 1dition and -ddenda

.ate Issued: Aune )@, )557

+ile ?o: 57(*B5

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Question %7&: The 7

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Subject: #ode #ase )74)(7 and )746(7

.ate Issued: .ece"ber 7=, )557

+ile ?o: 57(@47

>ack!round: The sub"er!ed are weldin! process is bein! used to deposit corrosion(resistantweld o0erlay for Section III, Subsection ?> fabrication usin! a ?I(#r(+e alloy strip filler "etal

and flu co"bination' The strip filler "etal does not "eet the che"ical require"ents of #ode#ase )74)(7 %bare electrode and rod&, but both filler "etal and weld deposit "eet the che"ical

co"position li"its of #ode #ase )746(7 %co0ered electrodes&'

Question %7&: Must the ?i(#r(+e alloy strip filler "etal used for the S-W process "eet the

che"ical co"position require"ents of #ode #ase )74)(7 to be classified as +(46 for procedure

and perfor"ance qualifications$

eply %7&: ;es'

Question %)&: May ?i(#r(+e alloy filler "etal that is not desi!nated as +(46 per #ode #ase )74)(

7 be used for weldin! if the weldin! procedure is qualified separately per QW(454'6B$

eply %)&: ;es'

Question %6&: If the ?i(#r(+e alloy strip filler "etal "eets the che"ical co"position

require"ents of #ode #ase )746(7 and was produced to the require"ents of S+-(*'74, ecept forthe che"ical analysis, "ay the filler "etal be classified as +(46 for procedure and perfor"ance

qualification$

eply %6&: ?o'

Question %4&: If the ?i(#r(+e alloy strip filler "etal is not classified in an S+- specification, and

is not co0ered in #ode #ase )74)(7 or )746(7, is it per"issible to identify the filler "etal and

flu on the W9S, 9Q and W9Q by the "anufacturers brand na"es$

eply %4&: ;es'

Iner%re&i#n: IX')0'0(

Subject: QW()5)')%b&, QW()5)'6%b& and QW(45B'4.ate Issued: .ece"ber 7=, )557

+ile ?o: 57(@7*

>ack!round: - !roo0e weld procedure qualification test coupon 7'* in' thick was welded withthe SM-W process usin! "ultiple passes of in' "a' thickness' The test coupon was !i0en a

subsequent post weld heat treat"ent eceedin! the upper transfor"ation te"perature prior to theco"pletion of "echanical testin!'

Question: May this 9Q be used to support the weld of partial penetration !roo0e welds per

QW()5)')%b& or weld repair and buildup welds per QW()5)'6%b& on base "aterial thickness

eceedin! 7'@* in'$

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eply: ?o' 9er QW(45B'4, a procedure qualification test coupon recei0in! a post weld heat

treat"ent in which the upper transfor"ation is eceeded, the "ai"u" qualified thickness for

production welds is 7'7 ti"es the thickness of the test coupon'

Iner%re&i#n: IX')0'0/

Subject: QW(7*6'7, -cceptance #riteria for Tensile Stren!th.ate Issued: .ece"ber 7=, )557

+ile ?o: 57(BB)

Question: .oes the "ini"u" specified tensile stren!th in QWHQ>(4)) supersede the -SHS>

"aterial tensile stren!th for procedure qualification$

eply: ;es'


Subject: QW()5)'4%b&, .issi"ilar >ase Metal Thickness

.ate Issued: .ece"ber 7=, )557+ile ?o: 57(=77

Question: .oes QW()5)'4%b& per"it the "ai"u" weld deposit thickness li"it to be etended

beyond the li"it specified in QW(4*7'7$

eply: ?o' QW()5)'4 applies only to the base "etal thickness li"its'

Iner%re&i#n: IX')0'3)

Subject: QW(755'6 and QW(4)5'7, 9(?u"ber eassi!n"ent

.ate Issued: .ece"ber 7=, )557

+ile ?o: 57(=76

Question %7&: May a procedure qualification record subject to 0ariable QW(45B'7%a& that

included only a 9W3T below the lower transfor"ation te"perature be used to support a W9S

with 9W3T abo0e the upper transfor"ation te"perature and a subsequent 9W3T below the

lower transfor"ation te"perature$

eply %7&: ?o'

Question %)&: .oes Section IX address the 0alues to be used as transfor"ation te"perature$

eply %)&: ?o'

VOLUME 60


Subject: QW(7*7'7%d&, educed Section C 9lateD QW()55'4%b&, #o"bination of

9rocessesD QW(6)), 1piration and enewal of Qualifications

.ate Issued: Aanuary 7

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>ack!round Z%7&, %)&, %6&[: - welder is qualified for "anual SM-W and /T-W, and

se"iauto"atic +#-W and /M-W'

Question %7&: .o welders "aintain their qualifications for "anual SM-W and /T-W byweldin! with either se"iauto"atic /M-W or +#-W$

eply %7&: ?o'

Question %)&: .o welders "aintain their qualifications for both SM-W and /T-W by weldin!

with only one of the processes durin! the si("onth period$

eply %)&: ?o'

Question %6&: .o welders "aintain their qualifications for se"iauto"atic /M-W and +#-W by

weldin! with either /M-W or +#-W durin! the si("onth period$

eply %6&: ;es'

>ack!round Z%4&[: - W9S was qualified usin! a Trade ?a"e wire(flu co"bination that

confor"s to a classification in -SM1 Section II, 9art #'

Question %4&: .oes the substitution in the qualified W9S of a different Trade ?a"e wire(fluco"bination that confor"s to the sa"e S+- Specification and classification in -SM1 Section II,

9art # require requalification$

eply %4&: ?o'

>ack!round Z%*&[: The tensile speci"ens of a @5 "" 9Q test plate was di0ided into three

pieces' The su" of the thickness of the three speci"ens was less than @5 ""'

Question %*&: What is the allowable percenta!e thickness reduction fro" the ori!inal base "etal

thickness$

eply %*&: Section IX does not address this issue'


Subject: QW(755'6 and QW(4)5'7, 9(?u"ber eassi!n"ent

.ate Issued: March 77, )55)

+ile ?o: 57(@B and *# be used

to weld S-()76 T)) to S-()76 Tase Metal Thicknesses

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.ate Issued: March 77, )55)

+ile ?o: 57(B=ase Materials for Welder Qualification

.ate Issued: .ece"ber 65, )55)

+ile ?o: 5)()@

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production joint of the qualified base "etal ha0in! a thickness of = "" when i"pact testin! is

required$

eply: ?o' See QW(456'@'

Iner%re&i#n: IX')0'55Subject: QW()=6, Welds with >utterin!

.ate Issued: .ece"ber 65, )55)

+ile ?o: 5)(6=ack!round: In all cases described below, the "anufacturers de0elop and follow W9Ss and

9Qs based on the test coupons welded' The "ini"u" butterin! thickness in all cases will be

!reater than 6H7@ in'

Question %7&: Manufacturer - qualifies a W9S by butterin! the ends of the test coupons, which

are the sa"e "aterial' The buttered ends are heat treated, then the weld is co"pleted usin! the

sa"e filler "etal as was used for the butterin!' Manufacturer > welds a !roo0e weld test couponof the sa"e best "etal usin! the sa"e process, filler "etal and other essential 0ariables as

"anufacturer -' That test coupon is heat treated in the sa"e "anner as the heat treat"ent used

for the butterin! by "anufacturer -' May "anufacturer - weld parts that were buttered by

"anufacturer >$

eply %7&: ;es'

Question %)&: Manufacturer # welds a !roo0e weld test coupon usin! the sa"e base "etal,

process, filler "etal, and other essential 0ariables as "anufacturer -' That test coupon is heat

treated in the sa"e "anner as the heat treat"ent used for butterin! by "anufacturer -' May

"anufacturer - weld parts that were buttered by "anufacturer #$

eply %)&: ;es'

Question %6&: Manufacturer - recei0es parts that ha0e been buttered by both "anufacturers > and

#' May the parts buttered by "anufacturer > be welded by "anufacturer - to parts buttered by

"anufacturer #$

eply %6&: ;es'

Question %4&: Manufacturer . recei0es parts that ha0e been buttered by "anufacturers -, > and

#' May "anufacturer . weld the buttered parts to!ether usin! a buttered !roo0e weld testcoupon qualified usin! the sa"e base "etal, process, filler "etal, and other essential 0ariables as

"anufacturer -$

eply %4&: ;es'

Question %*&: Manufacturer . recei0es parts that ha0e been buttered by "anufacturers -, > and

#' May "anufacturer . weld the buttered parts to!ether usin! a !roo0e weld test coupon

qualified in accordance with QW()=6'4%b& usin! the sa"e process, filler "etal, and other

essential 0ariables that "anufacturer - used to join the buttered parts %i'e', the as(welded portion

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of the test& usin! a base "etal that no"inally "atches the che"ical analysis of the butterin! used

by "anufacturer -, >, or #$

eply %*&: ;es'

Question %@&: Manufacturer 1 welds a !roo0e weld test coupon of another base "etal usin! the

sa"e filler "etal as "anufacturer -' That test coupon is heat treated and tested in accordancewith QW()5)')%a&' May "anufacturer +, who has welded a test coupon in accordance with QW(

)=6'4%b&, join parts buttered by "anufacturer 1$

eply %@&: ;es'

VOLUME 65

Iner%re&i#n: IX')0'5*

Subject: Q>()56'7, Li"its of Qualified +low 9ositions for 9rocedures, and Q>(45='4,

Aoint .esi!nD Q>(656'6, Li"its of Qualified 9ositions, and Q>(45='7, Aoint

.esi!n.ate Issued: March 76, )556

+ile ?o: 5)(6*47

>ack!round %7&: Q>()56'7 states: EQualification in pipe shall qualify for plate, but not 0ice0ersa' 3oriJontal(flow in pipe shall qualify for flat(flow in plate'F Q>(45='4 states: E-

chan!e in the joint type, e'!', fro" a butt to a lap or socket, fro" that qualified' +or lap or

socket joints, a decrease in o0erlap len!th fro" that qualified'F

Question %7&: .o procedure qualifications in plate lap joints qualify for tube(to(tube socket

joints for braJin! procedure qualifications$

eply %7&: ?o'

>ack!round %)&: Q>(656'6 states: EQualifications in pipe shall qualify for plate, but not 0ice

0ersa' 3oriJontal(flow in pipe shall qualify for flat(flow in plate'F Q>(45='7 states: E-

chan!e in the joint type, i'e', fro" a butt to a lap or socket, fro" that qualified' +or lap or

socket joints, an increase in lap len!th of "ore than )*8 fro" the o0erlap used on braJer

perfor"ance qualification test coupon'F

Question %)&: .o perfor"ance qualifications in plate lap joints qualify for tube(to(tube socket

joints for braJer perfor"ance qualifications$

eply %)&: ?o'


Subject: QW(4*7'7, 9rocedure Qualification Thickness Li"its

.ate Issued: March 76, )556

+ile ?o: 5)(45B*

Question %7&: - test coupon is prepared as follows: - 7'B* in' plate is welded to 7'B* in' plate

with 7 in' thick weld' 9er QW(4*7'7, is = in' the "ai"u" thickness ran!e of base "etal

qualified$

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eply %7&: ;es, ecept that further li"its or eceptions "ay apply as stated in ?otes %7& and %*&

of QW(4*7'7'

Question %)&: sin! the sa"e test coupon as Question %7&, where a sin!le process was used to

deposit the entire weld thickness, is = in' the "ai"u" thickness of the weld "etal per"itted perQW(4*7'7$

eply %)&: ;es, ecept that further li"its or eceptions "ay apply as stated in ?otes %7& and %*&

of QW(4*7'7'


Subject: QW(657'4, ecord of Welder 9erfor"ance Qualification

.ate Issued: March 76, )556

+ile ?o: 5)(47ack!round: +or welders perfor"ance qualification, a "ultiple layer !roo0e weld is "ade on a

sin!le test coupon usin! one welder for first layer and another welder for the second'

Question: QW(657'4 requires a record of welder perfor"ance qualification' May a sin!le for"

be used to record the essential 0ariables, the type of test and test results, and the ran!es qualified

in accordance with QW(4*) for each welder and weldin! operator$

eply: Section IX specifies infor"ation required to be recorded, but does not specify the for"at

of the records'

Iner%re&i#n: IX')0'5(

Subject: QW(454'66, #han!e in S+- Specifications for +iller Metal #lassification

.ate Issued: May 7

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>ack!round: - co"pany has qualified a 9Q to satisfy all testin! require"ents other than notch

tou!hness for weldin! 97 /roup ) to 97 /roup ) by the S-W process' -nother test coupon is

subsequently prepared usin! the W9S written on the ori!inal 9Q and an additional 9Q is then

qualified with only testin! for notch tou!hness, as allowed by the #ode, to supple"ent theori!inal 9Q for weldin! with i"pact require"ents' 3owe0er, the preheat 0alue %an essential

0ariable& used to qualify the ori!inal 9Q was 7*5U+' The preheat te"perature was less than7*5U+'

Question: May the supple"ental 9Q with reduced preheat be used with the ori!inal 9Q to

support a W9S for notch tou!hness application$

eply: ;es, pro0ided that the require"ents of QW(45@'7 are "et'

Iner%re&i#n: IX')0'*)

Subject: QW()57HQW()57'7, Manufacturers or #ontractors esponsibility

.ate Issued: May 7ack!round: Se0eral "anufacturin! or!aniJations within the sa"e co"pany perfor" weldin!

procedure qualifications in accordance with Section IX' 1ach "anufacturin! or!aniJation

perfor"s these acti0ities in accordance with specific Quality -ssurance 9ro!ra"%s&HQuality#ontrol Syste"%s& that co"ply with their -SM1 #onstruction #ode #ertificate%s& of

-uthoriJation and describe operational control of qualifications'

Question: Is it per"itted for any of the "anufacturin! or!aniJations within the co"pany to use

W9Ss and 9Qs qualified by any of the other "anufacturin! or!aniJations$

eply: ;es, this is per"itted by QW()57'

VOLUME 6*

Iner%re&i#n: IX')*')0

Subject: QW(7*7'6, Tension Test Turned Speci"en

.ate Issued: Septe"ber 7*, )556+ile ?o: 5)(6*=@

>ack!round: -SM1 Section IX, 9ara!raph QW(7*7'6%b& states, \ +or thicknesses o0er 7\ %)*

""&, "ultiple speci"ens shall be cut throu!h the full thickness of the weld with their centers

parallel to the "etal surface and not o0er 7\ %)* ""& apart' The centers of the speci"ensadjacent to the "etal surface shall not eceed *H=\ %7@ ""& fro" the surface'\

Question %7&: .oes the specified distance between speci"ens of not o0er 7\ apart refer to the

distance between the centers of the speci"ens$

eply %7&: ;es'

Question %)&: 3ow "any tension tests would be required for a )(7H)\ thick !roo0e weldin!

procedure qualification test coupon welded full thickness$

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eply %)&: Two' See QW(4*7'7'

Question %6&: When reduced section turned tension test speci"ens are used in accordance with

QW(4@)'7%d& for a )(7H)\ thick !roo0e weldin! procedure qualification test coupon welded

full thickness, what is the "ini"u" nu"ber of speci"ens that "ust be re"o0ed for eachtension test set$

eply %6&: Three'


Subject: QW()*='7 and QW(475'6=

.ate Issued: Septe"ber 7*, )556

+ile ?o: 56(75)ack!round: The elctrosla! weldin! process is used to apply a corrosion(resistant o0erlay' The

essential 0ariables in QW()*='7 apply' QW(475'6= is listed as an essential 0ariable for corrosion(

resistant o0erlay'

Question %7&: When a sin!le layer is recorded in the 9Q, is a W9S qualified for application of

"ultiple layers$

eply %7&: ?o'

Question %)&: When "ultiple layers are recorded in the 9Q, is a W9S qualified for application

of sin!le layer$

eply %)&: ?o'

Iner%re&i#n: IX')*')5Subject: QW(45B'7 , 9ostweld 3eat Treat"ent


+ile ?o: 56(7)7)

Question %7&: May a procedure qualification record subject to the 0ariable QW(45B'7%a& which

qualified 9(?o' = to 9(?o' = with no 9W3T support a W9S with 9W3T$

eply %7&: QW(45B'7%a& does not apply to 9(?o' = "aterials' See QW(45B'7%b&'

Question %)&: Would application of controlled and "onitored heat to the weld and surroundin!area for the correction of distortion in 9(?o' = "aterial be considered a 9W3T operation$

eply %)&: See QW(45B'7%b&'

N#e:This interpretation ori!inally appeared in 2olu"e *4' The E9=F has been corrected by

1rrata to read E9(?o' =F'

Iner%re&i#n: IX')*')*

Subject: QW(457'6 Supple"ental 1ssential 2ariable

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+ile ?o: 56(7)4@

>ack!round: - W9S is supported by three 9Qs' Two 9Qs are recorded on 7) "" and )='*

"" thick coupons usin! tensile, bend, and i"pact testin! speci"ens' - third 9Q was "adeusin! * "" thick plate usin! the sa"e weldin! para"eters, but only i"pact speci"ens were

tested'

Question %7&: May these 9Qs be co"bined to support a W9S for weldin! )'* "" throu!h *B

"" "aterial requirin! notch tou!hness testin!$

eply %7&: ?o'

Question %)&: May these three 9Qs be co"bined to support weldin! base "etal thicknesses

of 4'= throu!h *B "" with or without notch tou!hness$

eply %)&: ;es'

N#e:This interpretation ori!inally appeared in 2olu"e *4' The EW9F in Question %7& hasbeen corrected by 1rrata to read EW9SF'


Subject: QW()55')%f& and QW(4*7

.ate Issued: .ece"ber 65, )556

+ile ?o: 56(7*=6

Question: Two separate 9Qs with identical weldin! process eist for a @ "" and an = ""

base "etal thickness' May these 9Qs support a W9S, with all the essential and

supple"entary essential 0ariables unchan!ed, to weld a )= "" thick production joint$

eply: ?o, see QW(4*7'


Subject: Q>(7*7'6, Q>(4*7'6, and Q>(4@)'7%e&

.ate Issued: .ece"ber 65, )556+ile ?o: 56(7@@4

>ack!round: Two tubes under 6\ dia"eter are separately torch braJed into each end of a couplin!

usin! face fed filler in the sa"e position with all the re"ainin! braJin! 0ariables the sa"e forboth joints' The coupon is pulled to failure which occurs in the weaker of the two braJed joints'

The resultin! ulti"ate tensile stren!th eceeds the "ini"u" specified 0alues listed in QWHQ>(4))'

Question %7&: .oes one tensile speci"en, as shown in Q>(4@)'7%e&, braJed in this "anner, fulfill

the require"ent in Q>(4*7'6 for two tension tests$

eply %7&: ;es, see Q>(4@6'7%e&'

Question %)&: Since the sa"e inside dia"eter, outside dia"eter, cross(sectional area ulti"ate

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load, ulti"ate tensile stren!th, and type of failure eist for both lap joints, "ay the sa"e 0alues be

recorded for the two tension tests on the >raJin! 9Q$

eply %)&: ;es'

Iner%re&i#n: IX')*')(Subject: QW(675'7, QW(4*)'6 and QW(4@7'ack!round: - co"bination weld process 9Q was qualified usin! the /T-W for the root

pass, SM-W and S-W'

Question: May this 9Q support a W9S for weldin! with only one or two of the processes

shown on the 9Q$

eply: ;es, pro0ided the followin! are "et:

a& The re"ainin! essential, nonessential and supple"entary essential 0ariables, whenapplicable, are applied'

b& The base "etal and deposited weld "etal thickness li"its of QW(4*7 are applied'


Subject: QW(456'ase Metal Thickness.ate Issued: -pril 7, )554

+ile ?o: 54(@*

>ack!round: -n 1/W procedure was qualified on 6H= in' thick base "aterial co"pletin! the weldjoint in one %7& sin!le pass'

Question: Is the W9S qualified to "ake a weld deposit !reater than 7H) in', in one pass, in base

"etal !reater than 7H) in' in thickness$

eply: ?o'

Iner%re&i#n: IX')*'0)

Subject: QW(755'6 and QW()5)'), 9rocedure Qualification ecord Ti"e Li"its

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.ate Issued: Aune 75, )554

+ile ?o: 54(@57

Question: Is there a ti"e li"it on the 0alidity of a 9Q$

eply: 9Qs always re"ain 0alid, but "ay only be used to support W9Ss, pro0ided they "eet

the require"ents of the 7oiler and 9ressure 2essel #ode SectionIX' See QW(755'6'

Iner%re&i#n: IX')*'00

Subject: QW(4*7'7, 9rocedure Qualification Thickness Li"its and Test Speci"ens and

QW()5)'4, .issi"ilar >ase Metal Thicknesses

.ate Issued: .ece"ber )), )554

+ile ?o: 54(*ack!round: - procedure qualification test coupon usin! the sa"e 9(?u"ber "aterial and

consistin! of two plates of different thicknesses are welded to!ether, where the thicker of the

two plates %T) 7(7H)F thick& has been tapered on a 4:7 taper down to the thinner platethickness %T7 7F thick&'

Question %7&: .oes this test coupon qualify the W9S for a base "etal thickness ran!e of 6H7@F

to =F$

eply %7&: See Interpretation IX(=@(46, Question %)&'

>ack!round: - procedure qualification test coupon usin! the sa"e or different 9(?u"ber

"aterials and consistin! of two plates of different thicknesses, T) 7(7H)F thick and T7 7F

thick welded with a sin!le process' The thicknesses "eet on the sa"e plane with neither plate

bein! tapered' The joint is welded in accordance with the sketch below'

Question %)&: .oes this test coupon qualify the W9S for both base "etals for a thickness

ran!e of 6H7@F to =F on both sides of the weld joint$

eply %)&: ;es'

Question %6&: .oes this test coupon qualify the W9S for both base "etals of different 9

?u"bers for a thickness ran!e of 6H7@F to =F$

eply %6&: ?o' QW()5)'4 requires both base "etal thicknesses be in accordance with QW(

4*7'7' >ase "etal T7 is qualified 6H7@F to )F and base "etal T) is qualified 6H7@F to =F,

ecept as per"itted by QW()5)'4%b&%7&'

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Subject: QW(45ack!round: - welder has been qualified for the /M-W process %short circuitin!

transfer "ode&' The required "echanical bend tests were perfor"ed and found to be acceptable'

The welder did not weld with this process durin! the followin! si("onth period, resultin! in

epiration of the qualification'

Question: May a welders qualification be renewed by radio!raphin! a production weld

perfor"ed with the /M-W process %short circuitin! transfer "ode&$

eply: ?o' See QW(6))')%a&'

Iner%re&i#n: IX')*'0*

Subject: QW()55'), 9rocedure Qualification ecord and QW(45

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eply %)&: ;es'


Subject: QW(45B'), >ase Metal Thickness Qualification and QW(45B'), 9W3TTe"perature and Ti"e an!e

.ate Issued: .ece"ber )), )554+ile ?o: 54(7*

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Iner%re&i#n: IX')*'0(

Subject: QW(45ack!round: - co"bination /T-W and SM-W W9S is supported by two 9Qs' 9Q - is

welded with SM-W to join 6= "" %7( in'& thick plates with 6= "" %7( in'& of SM-Wdeposit' 9Q > is welded with /T-W and SM-W to join 76 "" % in'& thick plates, with 6 ""

%7H= in'& of /T-W deposit, and 75 "" %6H= in'& of SM-W deposited'

Question %7&: .o 9Qs - and > qualify the co"bination W9S for a base "etal thickness ran!eof * "" %6H7@ in'& to )55 "" %= in'& when i"pact testin! is not required$

eply %7&: ;es'

Question %)&: .o 9Qs - and > qualify the co"bination W9S for a "ai"u" deposited weld

"etal thickness of @ "" %N in'& for the /T-W process and )55 "" %= in'& for the SM-W

process$

eply %)&: ;es'

Question %6&: When i"pact tests are perfor"ed for both 9Qs with acceptable results, do

9Qs - and > qualify the co"bination W9S for a base "etal thickness ran!e of 76 "" % in'& to

)55 "" %= in'& when i"pact testin! is required$

eply %6&: ;es'


Subject: QW(454'6@, +iller Metals, Testin! of ecrushed Sla!

.ate Issued: March =, )55*+ile ?o: 5*()@

Question: .oes QW(454'6@ require that each batch or blend of recrushed sla!, as defined in

S+-(*'7B, be tested in accordance with Section II, 9art # re!ardless of the source of sla!$

eply: ;es'

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Iner%re&i#n: IX')*'3)

Subject: QW(45B'7, Weldin! 9rocedure Specification, 9ostweld 3eat Treat"ent

.ate Issued: March =, )55*

+ile ?o: 5*()ackin! %)554 1dition&

.ate Issued: -u!ust 7=, )55*

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+ile ?o: 5*(B=4

>ack!round: - perfor"ance qualification test is perfor"ed usin! solid round bar "achined to

4)')5 "" %7'@@ in'& G'.' with a "achined circu"ferential weld !roo0e that is 74'@ "" %5'*B*

in'& deep and has inte!ral backin!' Weldin! is perfor"ed in the @/ test position with a sin!leweldin! process' -t least three weld layers are deposited' The test coupon will be subjected to

radio!raphic ea"ination'

Question: May the test coupon described abo0e be used for a perfor"ance qualification test in

the @/ position welded with a sin!le process to qualify for all position weldin! of unli"ited weld

"etal thickness with backin! and for all dia"eters )* "" %7 in'& G'.' and !reater$

eply: ;es, howe0er, "ultiple test coupons are required to pro0ide a "ini"u" weld len!th of

7*5 "" %@ in'& for radio!raphic ea"ination and the radio!raphic ea"ination require"ents of

QW(7ack!round: - test coupon of 7 7H=F thickness was welded' Gnly two %)& turned 5'*5* inch

dia"eter tension speci"ens were prepared and tested' The test results were acceptable for thespeci"ens tested'

Question %7&: .o the tension tests perfor"ed satisfy the require"ents of QW(7*5 and QW(4*7$

eply %7&: ?o'

Question %)&: -re the require"ents of QW(7*5 and QW(4*7 satisfied if the W9S and this 9Q

supports is li"ited to a base "etal thickness ran!e of 6H7@ to ) inches instead of a base "etalthickness ran!e of 6H7@ to )(7H4 inches that would ha0e been per"itted had a sufficient nu"ber of

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tension speci"ens been tested$

eply %)&: ?o'

VOLUME 6(


Subject: QW()57, Manufacturers or #ontractors esponsibility %)554 1dition&

.ate Issued: +ebruary )), )55@

+ile ?o: 5*(77ack!round: Two independent co"panies - and > for" a Li"ited Liability 9artnership %LL9& toperfor" work requirin! -SM1 Section I #ode Sta"p' The LL9 has obtained 0alid -SM1

#ertificates of -uthoriJation' 1ach co"pany also has 0alid, eistin! -SM1 #ertificates of

-uthoriJation' The or!aniJation effecti0e operational control of weldin! procedure qualification

is described in each of the partners Quality #ontrol Syste" Manuals and the LL9s Quality

#ontrol Syste" Manual'

The weldin! procedure qualification tests and production weldin! are under the full super0ision

and control of the sa"e indi0idual representin! both the LL9 and co"pany -'

Question: May the LL9 use 9Qs qualified by co"pany - after the for"ation of the LL9$

eply: ;es'

Iner%re&i#n: IX')*'3(

Subject: nits of Measure"ent

.ate Issued: +ebruary )), )55@

+ile ?o: 5*(7)7*

Question %7&: Is it acceptable to "aintain welder perfor"ance qualification records in SI units,

with a con0ersion table as part of the weldin! "anual to ensure that qualification li"its are not

eceeded$

eply %7&: ;es' #ode #ase )*)6 pro0ides infor"ation about when such con0ersions are

required and the require"ents for perfor"in! such con0ersions'

Question %)&: Is it acceptable to "aintain weldin! procedure specifications that are dual

di"ensioned with SI units pri"ary and S #usto"ary units in parenthesis, with a con0ersion

table as part of the weldin! "anual to ensure that qualification li"its are not eceeded$

eply %)&: ;es' #ode #ase )*)6 pro0ides infor"ation about when such con0ersions are

required and the require"ents for perfor"in! such con0ersions'

Iner%re&i#n: IX')*'3/

Subject: QW(45*'), Weldin! 9osition %)554 1dition&.ate Issued: Aune )7, )55@

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+ile ?o: 5@(6)6

Question %7&: If a Stud Weldin! 9rocedure Qualification is perfor"ed in the 4S position does the

sa"e procedure qualification qualify for the 7S position$

eply %7&: ?o'

Question %)&: If a Stud Weldin! 9rocedure Qualification is perfor"ed in the 4S and )S position

does the sa"e procedure qualification also qualify for all positions$

eply %)&: ?o'


Subject: QW(45B'7%b&, 9ostweld 3eat Treat"ent

.ate Issued: Aune )7, )55@

+ile ?o: 5@(4@)

Question: .oes QW(45B'7%b&%)& address the te"perature ran!es for stress relie0in!, stabiliJin!andHor solution annealin! heat treat"ents$

eply: ?o, QW(45B'7%b&%)& addresses 9W3T within a specified te"perature ran!e' Section IX

requires the te"perature ran!e to be specified on the W9S and the 9Q supportin! the W9S bewithin the specified 9W3T te"perature ran!e' %See the fourth para!raph of the Introduction'&

VOLUME 6/

Iner%re&i#n: IX')0'33R

Subject: QW(755'6 and QW(4)5'7, 9(?u"ber eassi!n"ent %)554 1dition&

.ate Issued: Septe"ber 77, )55B+ile ?o: 57(@B, and *#, be

used to weld S-()76 T)) to S-()76 T

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#ode does not require it, the "anufacturer perfor"s heat treat"ent %at 7B*5 de!' +& subsequent to

co"pletin! all weldin! and for"in!'

Question: Is the heat treat"ent described abo0e considered 9ostweld 3eat Treat"ent

for the purpose of weldin! procedure qualification in accordance with Section IX, para'QW(45B'7%b&$

eply: ;es'

Iner%re&i#n: IX')(')3

Subject: QW()57, Manufacturers or #ontractors esponsibility %)554 1dition&

.ate Issued: -u!ust 7B, )55B

+ile ?o: 5@(ack!round: Three construction co"panies ha0e participated in a nuclear power plant

construction project as a consortiu" contractor' They ha0e a unified Quality -ssurance 9ro!ra"

but the consortiu" does not hold a #ertificate of -uthoriJation' 1ach of the construction

co"panies holds their own #ertificate of -uthoriJation'

Question: .oes Etwo or "ore co"panies of different na"es in an or!aniJationF in QW()57 apply

to the consortiu" described in the back!round$

eply: ?o'


Subject: QW(45

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Subject: QW(755'6 and QW(4)5'7, #han!e of 9(?o' as an 1ssential 2ariable with

espect to eassi!n"ent of 9(?o'* into 9(?o' *-, *>, and *# %)554 1dition&.ate Issued: Septe"ber 77, )55B

+ile ?o: 54(@55

>ack!round: - weldin! procedure was qualified in 7 or 9(?o'*# "aterials without requalification when tou!hness is not a

consideration$

eply %7&: ?o' QW(755'6 applies when later #ode 1ditions and -ddenda ha0e added new

0ariables for a !i0en weldin! process' While this W9S can be shown to be qualified for weldin!

9(?o'*> "aterials to each other, it is intended that the W9S be editorially re0ised to show

applicability of the W9S to the ori!inally qualified "aterials under the "aterial !roupin!assi!n"ent found in the applicable 1dition and -ddenda of Section IX' See QW(4)5'7 and QW(

)55')%c&'

Question %)&: Is it the intent of Section IX that the W9S described abo0e is acceptable for joinin!

all "aterials pre0iously assi!ned 9(?o'*$

eply %)&: ?o' >ased upon the ori!inal 9Q, the W9S is qualified only for joinin! "aterials

assi!ned to 9(?o'*> under the current Section IX rules' See QW(456'76'


Subject: QW(45B'7 and QW(45B'), 9ostweld 3eat Treat"ent %)55B 1dition&

.ate Issued: .ece"ber 77, )55B

+ile ?o: 5B(7B5=

>ack!round: - weld test coupon for a 9Q was welded usin! 9(?o' 7, /roup ) plate "aterial

to itself and postweld heat treated at 7775U+ ( 7765U+ %@55U# ( @75U#& for ten hours' The

9Q docu"ents all supple"entary essential 0ariable notch(tou!hness require"ents' ?otch(tou!hness is required and all qualification ran!es are supported by the 9Q for production

welds'

Question: Will this 9Q support a W9S that specifies a 9W3T te"perature ran!e below the

lower transfor"ation te"perature pro0ided the ti"e at te"perature does not eceed 7)'*

hours$

eply: ;es'

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VOLUME 64

Iner%re&i#n: IX')(')(R

Subject: QW(454')), se of #onsu"able Inserts %)55B 1dition&

.ate Issued: +ebruary 7), )55=+ile ?o: 5=(45

>ack!round: QW(6*@ lists the essential 0ariables for Welder 9erfor"ance Qualification for

"anual /T-W' QW(454')), the use of consu"able inserts, is an essential 0ariable for

Welder 9erfor"ance Qualification within QW(6*@'

-n indi0idual perfor"s the followin! two qualification tests:

%a& /roo0e weld usin! the /T-W("achine process on a ?9S @ %.? 7*5& Schedule 45

pipe coupon with a consu"able insert'

%b& /roo0e weld usin! the /T-W("anual process on a ?9S @ %.? 7*5& Schedule 45 pipe

coupon with an open root'

1ach qualification test is perfor"ed independently and welded full thickness by the process used

to "ake the root weld

Question %7&: Is this indi0idual qualified to weld a ?9S @ %.? 7*5& Schedule 45 pipe !roo0e

weld by "akin! the root weld with the /T-W("achine process with a consu"able insert and

then co"pletin! the weld usin! the /T-W("anual process$

eply %7&: ;es'

Question %)&: Is this indi0idual qualified to "ake non(throu!h wall weld repairs usin! the

/T-W("anual process to a ?9S @ %.? 7*5& Schedule 45 pipe !roo0e weld that was

ori!inally perfor"ed usin! the /T-W("achine process with a consu"able insert$

eply %)&: ;es'

Question %6&: Is this indi0idual qualified to "ake throu!h(wall repairs usin! the /T-W(

"anual process to the root of a ?9S @ %.? 7*5& Schedule 45 pipe !roo0e weld that was

ori!inally perfor"ed usin! the /T-W("achine process with a consu"able insert if the defect

re"o0al results in a repair ca0ity with an open root$

eply %6&: ;es'

Iner%re&i#n: IX')(')/

Subject: QW()55')%c&, #han!es to 9Q %)55B 1dition&

.ate Issued: +ebruary 7), )55=+ile ?o: 5=()5(4))

.ate Issued: Aune 4, )55end Test Speci"en .i"ensions

.ate Issued: +ebruary 7B, )575+ile ?o: 5ack!round: - weldin! procedure was qualified for weldin! on thick base "etals' .ue to the

thickness of the test coupon required, the width of the face of the weld is * inches' 9er QW(7@6,

the weld and heat(affected Jone shall be co"pletely within the bent portion of the bend speci"en'

+or a "aterial with )58 or !reater elon!ation, the standard 6H=F thick bend speci"en pro0ides a

bent portion that is 6'*6 inches lon! on the G. of the speci"en'

Question %7&: .oes it "eet the require"ents of -SM1 Section IX, if the bend radius and bend

test speci"en thickness are increased, such that )58 outer fiber elon!ation is achie0ed, and the

G. of the speci"en contains the entire width of the weld and 3-K$

eply %7&: ;es'

Question %)&: .oes it "eet the require"ents of -SM1 Section IX, if a set of "ultiple

speci"ens ha0in! the standard 6H=F thickness and representin! the entire width of theweld and both 3-Ks are re"o0ed and tested to "eet the require"ents for testin! the

entire width of the weld$

eply %)&: ;es'

Question %6&: -ssu"in! that both of the base "etals in the test coupon are of the

sa"e 9(?o', does it "eet the require"ents of -SM1 Section IX, to use standard 6H=F

thick bend speci"ens representin! at least one 3-K and as "uch weld "etal aspossible, when perfor"in! the required bend test$

eply %6&: ?o'

Iner%re&i#n: IX'0)'00

Subject: QW(4*6 C Mini"u" Qualified Thickness for #orrosion G0erlay

.ate Issued: +ebruary 7B, )575

+ile ?o: 5

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+ile ?o: 75(76

Question: .oes -SM1 Section IX allow the use of "aterials ha0in! the sa"e 9(?o' as the actual

production "aterials, to produce a test speci"en for fillet weldin! procedure qualification, usin!

a production asse"bly "ockup$

eply: ;es'


Subject: QW(454'*%b&, #han!e in trade desi!nation of filler "etal

.ate Issued: Aune )*, )575

+ile ?o: 5ack!round: - 9Q usin! /T-W process was qualified usin! filler "etal classified in

accordance with -SM1 Section II 9art #, S+- *')=, 1=5S(/ classification, with che"istry

"eetin! -(?u"ber )' - footnote was used in the 9Q to docu"ent the filler "etal Trade ?a"e

used in the qualification'

Question: - W9S supported by the abo0e 9Q usin! the sa"e filler "etal classification 1=5S(

/ and -(?o' ), but with a different Trade ?a"e was specified' When notch tou!hness %QW(

454'7)& does not apply, does a chan!e in the filler Trade ?a"e specified on the W9S require

requalification$

eply: ?o

Iner%re&i#n: IX'0)'0*

Subject: QW()55'4

.ate Issued: Aune )*, )575

+ile ?o: 5ack!round: - production weld joint was "ade usin! a qualified weldin! procedure, weldin! 96

to 9= usin! an unassi!ned filler "etal' In order perfor" a repair to this joint, a )ndweldin!

procedure was qualified usin! an assi!ned filler "etal'

Question %7&: If the )ndprocedure is qualified by weldin! 96 to 9=, is this procedure qualified torepair the production weld between the 96 ] 9= "aterial "ade with an unassi!ned filler "etal$

eply %7&: ;es' 3owe0er, see QW(467'

Question %)&: +or the sa"e situation as question 7, is this procedure qualified to repair the

production weld between the 96 ] 9= "aterial if the repair is entirely within the pre0iouslydeposited weld "etal$

eply %)&: ;es' 3owe0er, see QW(467'

Question %6&: If the )ndprocedure is "ade by weldin! 9(nu"ber "aterial that no"inally "atches

the co"position of the unassi!ned filler "etal si"ilar to QW()

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eply %6&: ;es' 3owe0er, see QW(467'


Subject: QW()5)'6, Weld epair and >uildup

.ate Issued: -u!ust )@, )575+ile ?o: 75(6* qualify the co"bination W9S for a base "etal thickness ran!e of

7H7@ in' %7'* ""& to 7N in' %6) ""& when i"pact testin! is not required$

eply %7&: ?o'

Question %)&: .o 9Qs - and > qualify the co"bination W9S for a base "etal thickness ran!e

of 7H7@ in' %* ""& to 7 %6= ""& when i"pact testin! in not required$

eply %)&: ?o'

Question %6&: .o 9Qs - and > qualify the co"bination W9S for a "ai"u" deposit weld

"etal thickness ran!e of 7H4 in' %@ ""& for the /T-W process and 7N in' %6) ""& for the

SM-W process$

eply %6&: ?o'

Question %4&: .o 9Qs - and # qualify the co"bination W9S for a "ai"u" deposit weld

"etal thickness ran!e of 6H= in' %75 ""& for the /T-W process and 7N in' %6) ""& for the

SM-W process$

eply %4&: ?o'

Question %*&: .o 9Qs - and # qualify the co"bination W9S for a base "etal thickness ran!e

of 7H7@ in' %7'* ""& to 7N in' %6) ""& when i"pact testin! is not required$

eply %*&: ?o'

Question %@&: .o 9Qs - and # qualify the co"bination W9S for a base "etal thickness ran!e

of 7H7@ in' %7'* ""& to 7 in' %6= ""& when i"pact testin! is not required$

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eply %@&: ?o'

Question %B&: .o the pro0isions in QW()55'4%b& affect the responses to the abo0e questions$

eply %B&: ?o'


Subject: Section IX, QW(4*)'7%b&

.ate Issued: .ece"ber =, )577

+ile ?o: 77()565

Question: e!ardin! QW(4*)'7%b& for perfor"ance qualification, is EMa to be WeldedF

equi0alent to Enli"itedF$

eply: ;es'


Subject: Section IX, QW(4@)'4%a& and QW(4@)'4%b& ( +illet Weld Test.ate Issued: +ebruary 7@, )57)

+ile ?o: 77(=

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Question: May stranded filler "etal be considered the sa"e as bare %solid or "etal cored& filler

"etal in QW(454')6$

eply: ;es'


Subject: Section IXD QW(4)4'7, >ase Metal sed for 9rocedure Qualification.ate Issued: +ebruary 7@, )57)

+ile ?o: 7)(7B=

Question: .oes a 9Q recordin! a 9(?o' *> base "etal welded to itself support a W9S for

weldin! 9(?o' *> "etal to any "etal assi!ned 9(?o' 4, 6 or 7$

eply: ?o'


Subject: Section IXD QW(456'@

.ate Issued: Auly ), )57)+ile ?o: 7)(@6*

Question: .oes QW(456'@ apply when the 3-K is not subject to i"pact testin! such as whenqualifyin! a 9(= "aterial$

eply: ;es'


Subject: Section IXD QW(7ack!round: QW()55'7%b& says:

E#ontents of the W9S' The co"pleted W9S shall describe all of the essential, nonessential, and,

when required, supple"entary essential 0ariables for each weldin! process used in the W9S'F

Question %7&: If a W9S is written and qualified for weldin! 9(?o'7 "aterial to itself, is it

necessary to specifically "ention on the W9S or on the 9Q anythin! re!ardin! QW(475'@4

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which addresses the use of ther"al processes for cuttin! or back!ou!in! when weldin! on 9(

?o'77- and 9(?o'77> "aterials$

eply %7&: ?o' The fact that the W9S and 9Q are for weldin! on 9(?o'7 "aterials precludes the

need to specifically describe the use of ther"al cuttin! or back(!ou!in! for 9(?o'77- or 9(?o'77> "aterials on either the W9S or the 9Q'

Question %)&: If a W9S specifies the use of 1B5S(@ filler "etal, is it necessary to specifically

"ention in the W9S anythin! re!ardin! QW(454')6 which addresses filler "etal product for" by

specifyin! that the filler "etal has to be solid$

eply %)&: ?o' The desi!nation 1B5S(@ specifies that the filler "etal be solid wire, and that is

sufficient for describin! the 0ariable QW(454')6'

Question %6&: If a W9S is written and qualified for weldin! 9(?o' *- "aterial to itself, is it

necessary to specifically "ention on a W9S or on the 9Qs for sub"er!ed arc weldin! anythin!

re!ardin! QW(454'64 which addresses, when weldin! on 9(?o'7 "aterials, the use of acti0e or

neutral flu$

eply %6&: ?o' The use of acti0e or neutral flues only needs to be specified on the W9S and

docu"ented on the 9Q when the base "etal is 9(?o'7'

Iner%re&i#n: IX'05')*

Subject: Section IXD QW(7=7'), Sectionin! of 9ipe(to(9ipe Quarter Sections

.ate Issued: Septe"ber 76, )57)

+ile ?o: 7)(7)5

Question: If the resultant siJe fro" a pipe(to(pipe quarter section, per QW(4@)'4%c&, is too lar!e to

bend as specified with QW(7=7'), can the fracture test quarter section speci"en be cut into

"ultiple speci"ens and tested in lieu of one full quarter speci"en$

eply: ;es'


Subject: Section IXD QW(7

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Subject: Section IXD QW(756') C ecords.ate Issued: .ece"ber @, )57)

+ile ?o: 7)(B

>ack!round: In the )55@ -ddenda to Section IX, it beca"e "andatory to certify qualification

records Eby si!nature or other "eans as described in the "anufacturers or contractors Quality

#ontrol Syste"'F

Question: 9rior to the )55@ -ddenda, is a typed si!nature or "eans other than a written si!nature

on a procedure qualification or perfor"ance qualification record considered certified as required

in QWHQ>(756')$

eply: 9rior to the )55@ -ddenda, the "ethod of certification for procedure and perfor"ance

qualification records was not addressed by Section IX'

Iner%re&i#n: IX'05')(

Subject: Section IXD QW(45B'7%b&

.ate Issued: .ece"ber @, )57)+ile ?o: 7)(7)65

>ack!round:

a& 9(?o' = plate is welded, heated to B=5U# %746@U+&, then for"ed, followed by a solution heat

treat"ent at 75@5U# %7

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Subject: Section IXD QW()5)'4 ( .issi"ilar >ase Metal Thicknesses.ate Issued: .ece"ber @, )57)

+ile ?o: 7)(7=66

Question: .oes QW()5)'4 allow a W9S qualified on !roo0e weld, with specified 9(no' 7 base

"etal thickness ran!e of 7H) in' % 76 "" & throu!h 7 in' % )* "" &, to be used in production to

weld a 7H) in' %76 "" & thick base "etal to a 6H= in' % 75 "" & thick base "etal$

eply: ?o'

V#l;e 15


Subject: Section IX, QW()57.ate Issued: March )7, )576

+ile: 76(77 and #' May #o"pany > use W9Ss qualified by#o"pany # in accordance with the require"ents of Section IX without requalification, pro0ided

#o"pany # describes the process that they follow in their Quality #ontrol Syste"HQuality

-ssurance 9ro!ra" for the operational control of procedure qualification$

eply: ;es'

Iner%re&i#n: IX'05'00Subject: Section IX, QW(45

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Subject: Section IX, QW(475'ack!round: - welder is qualified for a shop that fabricates Section 2III, .i0ision 7 0essels as

well as non(#ode equip"ent' - welder "aintains his weldin! process qualification for #ode

welds by "akin! non(#ode welds'

Question %7&: May a welder "aintain his weldin! process qualification by "akin! non(#ode

welds if the welder has not "ade a #ode weld for a period of @ "onths or "ore$

eply %7&: ;es, see IX(=6(7*

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