Re: [MW:24409] Welding by SAW process is it mandatory for heavy thick vessels in H2 service

There is no restriction, you are at full liberty to select any process suitable for your purpose, if, of course, you have an approved WPS.

 

BR,

Shashank C Vagal 

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From: Kannayeram Gnanapandithan <kgpandithan@gmail.com>
To: materials-welding <materials-welding@googlegroups.com>
Sent: Monday, 29 February 2016 6:31 AM
Subject: Re: [MW:24404] Welding by SAW process is it mandatory for heavy thick vessels in H2 service

SMAW is a time consuming and quality purely based on welder skill. SAW process is also available in Semi-Automatic process, it is gives better quality of weld, fast, aesthetic look

THANKS & BEST REGARDS,

KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

On Sat, Feb 27, 2016 at 9:12 PM, <dilintas@gmail.com> wrote:

Almost 20 years ago I was in a tank farm project were field welds were performed by means of saw

Sent from my BlackBerry 10 smartphone.

From: Prasad Sent: Σάββατο, 27 Φεβρουαρίου 2016 - 09:02 To: Materials & Welding Reply To: materials-welding@googlegroups.com Subject: [MW:24384] Welding by SAW process is it mandatory for heavy thick vessels in H2 service

Dear welding experts,

We are manufacturing heavy wall vessels for H2 service.

MOC SA 516 Gr 70. Thick 56 mm

Due to large size vessels are to be supplied in two sections.

Hence on site weld joint will have to be done at place of installation.

At shop we are using SAW process for welding.

At field rotating is not possible and we want to use SMAW process.

Our client is asking us to use SAW process for field weld joint also.

We know that SAW is semi automatic & more productive process.

My question is whether is their any restriction to use SMAW process.

Request experts to give their valuable views to convience client technically.

Best regards,

Prasad Ghanekar

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