Re: [MW:34956] RE: 34940] ER 70S-2 in pipeline root welding as per API 1104

We Have done    GTAW with ER70S-2

On Thu, 2 May 2024 at 21:27, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:

ER 70S3 is the best for pipeline 

On Thu, May 2, 2024, 9:09 PM ARORA Rajeev <rajeevarora007@gmail.com> wrote:

This pipeline is sour or nonsour service?

On Thu, May 2, 2024, 1:12 PM Lakshman <lakshmankumar4@gmail.com> wrote:

Hi
What is the base material, size and groove ?

 

Technically Nothing wrong in using GTAW with ER70S-2.

Pls do proper PQR, in one of the project I used GTAW for root

All the best

 

Thanks & Regards,

Lakshman Kumar.

+91 9440031459

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of K.M Hrishikesan
Sent: 02 May 2024 15:13
To: materials-welding <materials-welding@googlegroups.com>
Subject: [MW:34940] ER 70S-2 in pipeline root welding as per API 1104

 

Hi

 

One of our contractors wants to qualify a PQR using root with ER 70S-2 and subsequently with E 8010-1. I have never come across root being welded with GTAW in pipeline. Can any one comment please..??

 

Regards

Hrishikesan 

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