Number of thermocouples required for heat treatment of welded joints in heat-resistant steel pipes
Thread Content
For the heat treatment of welds in heat-resistant steel pipes, in accordance with requirements such as GB50235 and GB50236, thermocouples need to be installed; however, there are no detailed specifications regarding the number and location of these thermocouples. Do you all place 2 or 3? . .
It seems there are no such regulations for GB; the SH3554 standard that we follow does have relevant provisions. In my opinion, the SH standard is more aligned with the construction design in petrochemical facilities, as its requirements are more specific and clear.