RE: RE: [Piping Design] flange failure

From: <Christopher>
Date: Sat Jan 31 2004 - 00:38:00 EST

I picked the following posts from the ASME PVP bulletin Board <https://secure.asme.org/cfforum2000/viewtopics.cfm?Forum=37> I think the guy is serious Any comments?

> Dear Friends,
> Merry X-Mas & a hapi New Year to al of U.
> I have qualified three welders on the same test coupon each depositing
> 6mm of weld metal by SMAW Process per QW-306. Each of them is qualified to
> deposit 12mm of weld metal per QW-452.1.
> My question is- can I employ them on a 36mm thick job,each depositing
> 12mm of weld metal by SMAW process?
> Does QW-351 , last para imply this?
> I will be thankful if some one gives an early reply.
> Regards.

------reply-------
>Absolutely!  QW-351 implies that in one weld, any one welder can not put
>in more thickness than the range they are qualified for.  In order to
>complete a weld, multiple welders may be used provided they are qualified
>for the weld they are doing (with or without backing, process for weld
>metal deposition, and thickness range they are being asked to deposit).
>Enjoy the holidays

-------second message---
> Dear Friends,
> I believe that my GTAW welder who passed the test with a CS (P1) Base
> Metal and AWS Spec. A5.18 (Carbon Steel, F-6) filler metal is also qualified
> to weld on SS Base matal with AWS A5.9 filler metal due to the
> following paras of the code (ASME-IX)
> Base Metal Qualified-- Per Para QW-356,QW-403.18 and most importanly
QW-423.1,if
> he is qualified on P-1, HE IS QUALIFIED for all base metal
> from P1 THROUGH P-11. And CS is P1 and SS IS P-8.
> Filler Metal Qualified- Per Para QW-356,QW-404.15 and most importantly
> QW-433, a welder qualified on any F-6 is qualified for welding with all
> F-6 FILLER WIRES.
> Now, filler wires per AWS A5.18 (CS) and filler wires per AWS A5.9(SS),
> both come under F-6 GROUP. Am I correct in the interpretation of the
> Code?
> Moreover, if so, can I deploy the same welder for Dissimilar metal welding
> between any  TWO base metals falling under QW-423.1 if such a WPS
> is available???
> An early opinion on this matter will be highly appreciated.
> With Warm Regards,

Christopher Wright P.E. |"They couldn't hit an elephant at <a href="/group/PipingDesign/post?postID=2KPKaYnQvjV8pXMs5PZFaJdjXBgVRhRe6uzAANKkCKRqNrR556qVfs52XXKqPEEKZtakMTWALMDn5cvL">chrisw@skypoint.com</a> | this distance" (last words of Gen.

___________________________| John Sedgwick, Spotsylvania 1864)

<a href="http://www.skypoint.com/~chrisw">http://www.skypoint.com/~chrisw</a> Received on Sat Jan 31 00:38:00 2004