Materials &amp; Welding

krishnasamy1968@hotmail.com

not required

THANKS & BEST REGARDS

KG.PANDITHAN, AWS-CWI, CSWIP 3.1

CONSULTANT-WELDING & QUALITY

On Tue, Mar 11, 2014 at 2:15 PM, KRISHNASAMY MASANAM <

> wrote:

Dear all,

If you are using those electrodes it shall be approved from the owner/client, its mandatory requirement as per ASME Sec II C

Thanks & Best regards

Krishnasamy. M
Mechanical/Welding Inspector
Saudi Aramco Project Inspection Department

TUV NORD - KSA

krishnasamy.masanam@aramco.com

KSA +966 564743358 (Available)

INDIA +91 9442558057

Date: Mon, 10 Mar 2014 22:40:18 +0530
Subject: Re: [MW:20286] Re: GTAW Filler Metal with a "G" suffix in ASME Sect. IX
From:

ranendrac6@gmail.com

To:

I am just adding one thing. Suffix G means general and it can be any combination. If anybody wants to purchase Electrode/Filler with suffix G,then he needs to specify the correct combination to avoid any last minute confusion.

Regards,

Ranendra

On Mon, Mar 10, 2014 at 11:16 AM, Ramin Kondori <

raminkondori@gmail.com

> wrote:

Dear Mr. Rezazade:

Be careful when using filler metals with a "G" suffix since they may have any combination of alloying elements and only by referring to manufacturer catalogue you can find out which alloying element(s) they have used.

Once I remember that a company qualified a WPS with E8018-G (that later I found it had Cr/Mo additions) and during production their procurement officer purchased another E8018-G (that later I found it had Nickel additions).

This caused the company a lot of trouble since these are two different filler metals with different properties. Ni additions are suitable for low temp service but Cr/Mo additions improves high temp service properties (the application was a gas turbine exhaust - high temp service).

So always check the catalogue before proceeding with PQR or production.

Ramin Kondori

Sr. QA/QC Engineer

SINOPEC

r.kondori@petroyada.com

+98-2123592322
+98-9132150320

On Sun, Mar 9, 2014 at 4:08 PM, M Rezazade <

inspectormag@gmail.com

> wrote:

Dear sir

QW-404.12 is supplementary essential variable and when impact test required in your WPS (or production) according to construction code, you need to consider it as essential variable.

.so changing the brand of G suffix electrode is not permitted in WPS without re qualification of PQR with new brand of electrode. (when impact test required)

در سه‌شنبه 9 فوریهٔ 2010، ساعت 5:10:20 (UTC+3:30)، yan نوشته:

Hi Gentlement,

We have many qualified WPS/PQR (GTAW process) using filler metal with a "G" suffix such as ER-70S-G and qualified base on ASME Section IX ( using previous ASME IX Ed. 2004/Ed. 2007) . In QW-404 / Filler Metals), para QW-404.12 state that change classification is NON ESSENTIAL VARIABLE. But in ASME IX Ed. 2007 addendum 2008, in the same QW-404.12 state that change in classification is SUPPLEMENTARY ESSENTIAL VARIABLE ( a filler metal with a" G" suffix)Our question is whether this existing WPS/PQR need re-qualification (change from NON ESSENTIAL VAR to SUPPLEMENTARY ESSENTIAL VAR)?

Great thank to get sharing accordingly.

Regards,

Yan

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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