note 6- welder test requirement (1).ppt

7/25/2019 NOTE 6- WELDER TEST REQUIREMENT (1).ppt

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FWD 22403FWD 22403

WELDING PROCEDURE SPECIFICATIONWELDING PROCEDURE SPECIFICATION

Welder Qualificai!"Welder Qualificai!"

C!#$iled % Pre$aredC!#$iled % Pre$ared

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(a)a#ad N!!r(a)a#ad N!!r


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PERFORMANCE QUALIFICATIONS These articles list separately the variouswelding and brazing processes with theessential variables that apply to theperformance qualications of each process.

The welder, brazer, and brazing operatorqualications are limited by essentialvariables.

Generally, a welder or welding operatormay be qualied by mechanical bendingtests, radiography of a test plate, orradiography of the initial production weld.

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Q!"##.2 $urpose %n performance qualication, the basiccriterion established for welderqualication is to determine the welder&s

ability to deposit sound weld metal. The purpose of the performance

qualication test for the welding operatoris to determine the welding operator&smechanical ability to operate the weldingequipment.

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QW-103 Responsibility (ach manufacturer or contractor is responsible

for the welding done by his organization andshall conduct the tests required in this )ection

This code also provide the guideline to qualifythe welding procedures he uses in theconstruction of the weldments built under this*ode, and the performance of welders and

welding operators who apply these procedures.

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QW-103 Reo!"s (ach manufacturer or contractor shallmaintain a record of the results obtainedin welding

procedure and welder and weldingoperator performance qualications.

These records shall be certied by themanufacturer or contractor.

The record shall be accessible to the uthorized %nspector. -efer to recommended orms in /on!

mandatory ppendi0 1.


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Q!'## General This rticle lists the welding processes with the essential

variables that apply to welder and welding operatorperformance qualications.

The welder qualication is limited by the essential variablesgiven for each welding process. These variables are listed in

Q!'#, and are dened in rticle %3 elding 4ata. The welding operator qualication is limited by the

essential variables given in Q!'5# for each type of weld. welder or welding operator may be qualied by

radiography of a test coupon, radiography of his initialproduction welding, or by bend tests ta6en from a test

coupon e0cept as stated in Q!'#+ and Q!'#.

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Q!'#" Test The performance qualication tests are intendedto determine the ability of welders and weldingoperators to ma6e sound welds.

(ach manufacturer or contractor shall qualify

each welder or welding operator for each weldingprocess to be used in production welding.

The performance qualication test shall bewelded in accordance with qualied elding$rocedure )pecications 7$)8.

$) that requires a preheat or postweld heattreatment, these may be omitted.

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QW-301#3 I"enti$%tion o& Wel"e!s%n" Wel"in' Ope!%to!

(ach qualied welder and welding

operator shall be assigned anidentifying number, letter, or symbol.

specic method shall be use to

identify the wor6 of that welder orwelding operator.

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QW-301#( Reo!" o& Tests The record of elder ;elding


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QW-()3 Alte!n%te *%se

M%te!i%ls &o! Wel"e!Q+%li$%tion

1ase metal used for welder qualication maybe substituted for the metal specied in the$) in accordance with the following table.

base metal shown in the left column isused for welder qualication, the welder isqualied to weld all combinations of base

metals shown in the right column, %ncluding unassigned metals of similar

chemical composition to these metals.

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>aterial test and qualied

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QW-30) Type o& Test Re,+i!e" (0cept as may be specied for special processes7Q!':#8, the type and number of test specimensrequired for mechanical testing shall be inaccordance with Q!+2.

Groove weld test specimens shall be removed ina manner similar to that shown in gures Q!+5'.27a8 through Q!+5'.27h8.

illet weld test specimens shall be removed in amanner similar to that shown in gures Q!+52.+7a8 through Q!+52.+7d8 and gure Q!+5'.27h8.

ll mechanical tests shall meet the requirementsprescribed in Q!"5# or Q!":#, as applicable.

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(ssential variable!elders

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Q '#!(?4%/G 3-%1?()


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(lectrode qualied 7 no8!elder

QW-(33 Alte!n%te F-N+be!s&o! Wel"e!

The following tables identifythe ller metal or electrode

that the welder used duringqualication testing as@Qualied ith,A and theelectrodes or ller metalsthat the welder is qualiedto use in productionwelding as @Qualied or.A

@Qualied ith,A and theelectrodes or ller metalsthat the welder is qualiedto use in productionwelding as @Qualied or.A

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/o test and qualied

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Q!""# (?4


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":

Q!"2# T()T $


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"=

QW-(.1#3 /ROOE WELS IN PLATE 2 TEST POSITIONS


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2#

QW-(.1#( /ROOE WELS IN PIPE 2 TEST POSITIONS


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2"

QW-(.1# FILLET WELS IN PLATE 2 TEST POSITIONS


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QW-(.1#. FILLET WELS IN PIPE 2 TEST POSITIONS


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$osition test and qualied

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QW-() Pe!&o!%ne Q+%li$%tionT4i5ness Liits %n" TestSpeiens Groove!eld Test#The following

tables identify the required type andnumber of tests and the thic6ness ofweld metal qualied.

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Type of e0amination for test coupon

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Thic6ness of weld metal qualify

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$ipe diameter limit

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2:


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2=

note 6- welder test requirement (1).ppt

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