Hi pipers
i have one query regarding welding of Pipes…..we maintain the minimum gap between two welds 100 mm ?
is the only reason behind that is heat affected zone ?
what is the exact problem we face on site if the gap between two welds is less than 100?
can we do the PWHT( Post Weld Heat Treatment ) simultaneously or rather together for the two welds .
PWHT is done exactly after the welding or it is done after some time?
Assume the material to be welded is CS ( ASTM 106B)
Regards
SG