Dear All..
Since Heat Treatment (on HAZ) will affect metalurgical of base metals wich (at the end) caused welds imperfections.. So I do believe that NDT (radiographic) shall take place following Heat Treatment (PWHT)..
Could you give me the code/std which align with my thinking (NDT required after PWHT)... ??
FYI.. The pipeline was designed by B31.1 and constructed by API 1104..
I already read those code.. Unfortunately couldn't find it.. I think I miss it somewhere..
Since Heat Treatment (on HAZ) will affect metalurgical of base metals wich (at the end) caused welds imperfections.. So I do believe that NDT (radiographic) shall take place following Heat Treatment (PWHT)..
Could you give me the code/std which align with my thinking (NDT required after PWHT)... ??
FYI.. The pipeline was designed by B31.1 and constructed by API 1104..
I already read those code.. Unfortunately couldn't find it.. I think I miss it somewhere..