Is API 1104 and ASME IX "either/or" welding codes for ASME B 31
Is API 1104 and ASME IX "either/or" welding codes for ASME B 31
(OP)
Hello,
for pressure piping ASME B31.4 and 31.8 for liquid and gas transmission lines, the welding section always refer to both ASME IX or API 1104, I have welding procedures that are used for ASME B31.3, 31.4, and 31.8, my question is:
Is ASME IX more appropriate for the ASME B31 pressure piping applications or API 1104 or is it which ever one you choose?
I feel like I chose ASME IX because it's more stringent or restrictive to many parts of the B31 codes.
Thank you.
for pressure piping ASME B31.4 and 31.8 for liquid and gas transmission lines, the welding section always refer to both ASME IX or API 1104, I have welding procedures that are used for ASME B31.3, 31.4, and 31.8, my question is:
Is ASME IX more appropriate for the ASME B31 pressure piping applications or API 1104 or is it which ever one you choose?
I feel like I chose ASME IX because it's more stringent or restrictive to many parts of the B31 codes.
Thank you.





RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31
RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31
so in my case, most of the facilities are B31.3, but any gas or liquid transmission lines fall inside the production pad we also classified under B31.3, we have very few gathering lines outside well pads that fall under B31.4 and 31.8.
So:
If all the procedures for the B31.3, 31.4, 31.8 are all ASME IX, and the welders' are also qualified per SEction IX, that is also okay right? without having anything to do with API 1104?
Thanks.
RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31
RE: Is API 1104 and ASME IX "either/or" welding codes for ASME B 31
this will not be in-service welding, they'll constructoin of the production piping before productioin commences, or to add to existing facility, basically, fluids will be transported through the pipe after the welding activity