RE: [MW:10104] Can I use E 7018 in Pipe root runs? Wats the disadvantages?

I suppose it requires highly skilled welders to get uniform root penetration which could pass Radiography testing. For Piping it is normal practice to use GTAW for the Root Run & Next pass, & for remaining passes joint can be completed using SMAW E7018

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Engineer Mech
Sent: Wednesday, March 02, 2011 2:22 PM
To: Materials & Welding
Subject: [MW:10087] Can I use E 7018 in Pipe root runs? Wats the disadvantages?

Hi All,

Can I use E 7018 in Pipe root runs? Wats the disadvantages?
Can i go E 7018 root run& filler WPS qualification?

Regards
Srinivasan

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