For B31.1 power piping side, it refers to engineering choice. However, you should apply RT examination after PWHT for P3, P4, P5A P5B and 15E materials if there is no engineering directive to apply RT before PWHT from engineering.
Hello,
As per ASME SEC.V Article 4 t-410 mentions "retention and control of calibration" blocks. What does it mean exactly and since it is specific requirement of related code section, how can you refer in ASME UT procedure ?
Thanks
Does it mean JO can be upgrade and acceptable if i can do longitudinal -20 degree impact test ? Another question is about the chemical compositions.
for JO materials P, S values should be max 0,030 and N need to be 0,015
but for J2 P, S values are 0,025 and there isnt N ?
