Re: [MW:24392] Welding by SAW process is it mandatory for heavy thick vessels in H2 service

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

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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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