What is the major difference in the two codes when it comes to governing thickness when figuring out if a material needs to be PWHT?
Seems to be grey when you get to attachments (i.e OLETS)in 31.3.
We have some API-5L 30" and 36" weld pipe with visual porosity in the weld seams. Was wondering if there was a visual acceptace on the welding of the pipe?
I am getting feed back from a customer on a hardness testing procedure I am developing. I have written that if there are unacceptable readings found that 2 additional readings will be taken on the same piece within 2" of the unacceptable readings.
The customer wants me to change the 2" to the...
When you read the requirements of PWHT of P-1 materials The nominal thickness is 3/4" or less PWHT is not required. If you have a STD 6" Buttweld olet going on a STD 16" pipe how do you determine if the olet needs to be PWHT due to thickness?
