Tuesday, October 12, 2010

Re: [MW:7492] ASME sec 9 (QW 452 & 351 & QW 306) doubt

Dear All
Pl clear me about following
 
as per QW 306,

(Two or more welders or welding operators,

each using the same or a different welding process,

may be qualified in combination in a single test coupon.

For combination qualifications in a single test coupon, the

limits for thicknesses of deposited weld metal, and bend

and fillet testing are given in QW-452 and shall be considered

individually for each welder or welding operator for

each welding process or whenever there is a change in an

essential variable.)

I have to qualify for each process as per QW 451 thickness limits.

I have to mention that thickness range for each process in seprate like if my job is 7.11mm, to mention that, 8mm for rootGTAW & 6.11mm for filler SMAW as thickness range qualified, am i correct?

& one more doubt, that is.. process is single(SMAW), Filler metals r different one is E6010 root(F.No.3) & E7018 filler(F.No.1),

 Test piece is 6" 7.11 mm thik

either i have to mention in wps, that thcikness range qualified for two filler metal for root & filler pass is to be in seprate(like 8 & 6.11mm) or can i mention 14.22mm as single? pl clear me...

 Thanks & Regards
M
On Fri, Oct 8, 2010 at 12:05 PM, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com> wrote:

An interpretation applies either to the Edition and Addenda in effect on the date of issuance of the interpretation or the Edition and Addenda stated in the interpretation. Subsequent revisions to the Code may supersede the interpretation.

 

For e.g. part 3 this interpretation refers to QW404.28, QW404.11, QW404.15, and QW404.16 , except QW404.15 remaining paras are not exist in the current edition.

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Sreejith
Sent: Friday, October 08, 2010 12:43 PM
To: materials-welding@googlegroups.com
Subject: [MW:7445] ASME sec 9 (QW 452 & 351) doubt

 

Dear all,
               I came across the interpretation of Sec 9 issued by ASME on year 1988. The question was

            A performance qualification groove weld test coupon has been successfully made by a welder on a  ¾ " thick test coupon using transverse bend tests in accordance with QW-452. The test weld was made with one process, utilizing filler metals of two different F-numbers. Is the deposited weld metal thickness qualified, for each of the F-number filler metals used in qualification, "max . to be welded". (Interpretation: IX-89-02  issued date OCT 6, 1988)

The answer given by the committee is YES .

Anybody agreeing with this answer?If yes please give the relevant statements in ASME sec 9 supporting that. 

Is this answer true if interpretation is as per ASME sec 9 2007 Ed ?


- Sreejith -


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