If welding code is API1104 then there should be lapse timing between root and hot and subsequent passes..
any way as per ur case there is no timing..then..even no need to perform NDE also..because ur following WPS for weld as per ur code..correct..
Just make necessary preheating prior starting hot pass.
regards,
mohd.
On Tuesday, May 15, 2012 4:25:43 PM UTC+3, jesti fer wrote:
Dear all,We are doing 20" pipe line project with API 5L Gr.B material as per B31.4, Welding process SMAW (E6010 for root and rest with E 7018, both are up-hill) our welder welded one joint root pass and he kept this joint for long time. But our Qc instructed to cut and re-weld the joint. But the time between root pass and hot pass not mentioned in approved WPS and client specification also.It necessary to cut and re-weld?It is mentioned any were in the code (ASME or API)?Please help me,,Best Regards
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