can we use ASME Sec IX based WPS for welding of cross country pipeline
can we use ASME Sec IX based WPS for welding of cross country pipeline
(OP)
Hi all, A warm morning,
Could anyone advise that ASME Sec IX based WPS can be used for welding of cross country pipeline which is designed based on ASME B31.4 or B31.8. Please note that there is no specific client requirements. Request to all professionals that please reply with the relevant clause of the code / standard.
Regards,
ISHACK
Could anyone advise that ASME Sec IX based WPS can be used for welding of cross country pipeline which is designed based on ASME B31.4 or B31.8. Please note that there is no specific client requirements. Request to all professionals that please reply with the relevant clause of the code / standard.
Regards,
ISHACK





RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
is most customary
Independent events are seldomly independent.
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
434.8.4 Welding Standards. All the welding done
under this Code shall be performed under a specification
that embodies the minimum requirements of this Code
and shall encompass the requirements of API 1104
except as provided in paras. 434.8.3(a) and (b).
a and b relates to shop welding or fabrication inside stations where ASME IX can apply. Cross country welding is 1104.
31.8 appears to be either:
823.2.1 Qualifying Standards. Welding procedures
and welders performing work for new construction and
out-of-service pipelines shall be qualified under Section
IX of the ASME Boiler and Pressure Vessel Code or API
1104.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
To Mr.Littleinch, still your statement based on B31.4 doesn't have clarity. Of course all the inspection technique and criteria for both welding of cross country pipeline and station piping shall follow API 1104 which is clear in section 434.8.4 and other section of ASME B31.8,
whereas as per my understanding from the statement in B31.4, section 434.8.4, there is an exception for qualification of welding procedure and welder qualification which shall be referred to a & b of 434.8.3 where there is nothing specifically mentioned about API 1104 to be used for cross country pipeline.
BY taking benefit of the above statement, can we present the client that ASME sec IX is also applicable for cross country pipeline welding (only for qualification).
I would like to correct Mr.stanweld, for compressor station, those who seek welder qualification as per API 1104 shall be qualified by destructive testing. Still you can use ASME Sec IX for compressor station without any additional requirements.
Regards,
ISHACK
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
Unfortunately for you it is also very clear in a) that
"(a) Welder and welding procedure qualifications for
cross-country pipelines shall be performed in accordance
with API 1104."
It goes on to say that for "shop fabrication" and station pipework the welding prcedure can be to 1104 or ASME IX.
b) does complicate things a bit by allowing the qualification and testing to be done to either 1104 or ASME IX, but as the main specification itself is to 1104, it would make sense to use 1104 to me.
SO, the weld procedure specification (WPS) in 31.4 for cross country pipelines must be to 1104 - that seems quite clear
The testing of that procedure (WPQT) can be to 1104 or ASME IX.
WPS for "shop" or station pipework can be to 1104 or ASME IX
Your OP talks about a WPS, but your response now talks about the qualification of that procedure. I suspect it is the WPS that is to ASME IX. This, according to the code cannot be used for cross counrty pipeline welding. Clear?
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
Thank you all experts.
Regards,
ISHACK M
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
API 1104 may also be mandated by States for procedure qualification and welder qualification on Intrastate cross country pipelines. You may need to check with jurisdictions where your pipeline is located.
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
It could have been reflected in the client specification if the specific standard is bounded by the state's law. still API 1104 is remains as standard here in my location and not the governing CODE.
RE: can we use ASME Sec IX based WPS for welding of cross country pipeline
Advise you get a copy.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way