Re: [MW:28993] Backing gas as per API RP 582

special electrode available to avoid purging

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On Mon, Jan 28, 2019 at 12:54 PM muneebslsa@gmail.com <muneebslsa@gmail.com> wrote:

Even you can try with SS pipe root with SMAW without back purging.

Thanks.

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From: Manoj John

Date: 2019-01-27 20:33

To: materials-welding

Subject: [MW:28982] Backing gas as per API RP 582

Dear Experts,

As per clause 7.3 of API RP 582 Ed. 2016 back purging required for GTAW & GMAW process but no where I could found for other process like SMAW.  Is it mean that if we do welding with SMAW process back purging is not required?

Please share your interpretation.

Thanks and regards

Manoj.

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