I think the welding to be done in foll.manner. first of all grind/flush the clad material up to the surface of the 5L grade pipe...prepare the ends of the 5L pipes to be welded together,root,fill by suitable electrode up to the basepipe thickness....flush the uper surface of the welding.....then prepare the ends of the clad material and then overlay welding by suitable electrode.........
On Oct 16, 2011 3:50 PM, "Sundaram Elumalai" <Elumalai.Sundaram@starfab.com.sa> wrote:
Hi experts,
We have the following Clad Pipe and we are preparing WPS /PQR to weld this SPOOL. As I know we need to use ERNiCrMo3 / E NiCrMo 3 ( if GTAW+SMAW) to Complete weld. But if any one is having experience with this, please advice whether we will go with
GTAW - ER NiCrMo3 ( First four Passes- R/H/F1/F2)
SMAW – E7018-1 ( Balance Filling /Capping).
We have Pitting corrosion test as per ASTM G48 at 50 degree.
Pipe
NPS:10-Thk:45mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036
BW
3mm Inconel Cladded
Pipe
NPS:12-Thk:15.88mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036
BW
3mm Inconel Cladded
Pipe
NPS:12-Thk:45.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036
BW
3mm Inconel Cladded
Pipe
NPS:12-Thk:53.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036
BW
3mm Inconel Cladded
With Kind Regards,
S.Elumalai.
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