BS500 Code and P460NL1 steel plate

[mariovalenti]

Hi,
I want to know if a pressure vessel manufactured by BS5500 code (or BS EN 13445-3:2002) using P460NL1 steel plate need a post-weld heat treatment.
Can anybody help me about this?.
This is a normalised steel, and I have this code, but I can't find anything in it explaining about this requirement.
Thank you in advance

Mario Valenti
Argentina

 

[ijzer]

According to table 10.1.1 in EN 13445-4 , PWHT is required for wallthickness over 35 mm. There could of course be reasons to perform PWHT below 35 mm . e.g. due to low temperature service or sour service.