Welding procedures for wellhead welding

[engr2GW]

Hi,
I just developed welding procedures for ASME B31 piping using ASME Section IX welding code, I'm preparing to develop the same for wellhead piping, valves which I know is API 6A. Is there a different welding code for those or will it also be covered by ASME IX as long as the filler metal and material spec requirements are met?

Thank you.

 

[Kiwi2671]

mysarah,

Specification for Wellhead and
Christmas Tree Equipment
ANSI/API SPECIFICATION 6A
TWENTIETH EDITION, OCTOBER 2010
EFFECTIVE DATE: APRIL 1, 2011

6 Welding — General requirements

6.3 Pressure-containing fabrication weldments for bodies, bonnets, end and outlet
connections, bullplugs, valve-removal plugs and back-pressure valves

6.3.2.3 Welding procedure qualifications
The following apply:
a) written procedure:
Welding shall be performed in accordance with welding procedure specifications (WPS), written and qualified in accordance with ASME, BPVC:2004, Section IX, Article II. The WPS shall describe all the essential,nonessential and supplementary essential (if required; see ASME, BPVC:2004, Section IX) variables.

6.3.2.4 Welder performance qualification
The following apply:
a) testing requirements:
Welders and welding operators shall be qualified in accordance with ASME, BPVC:2004, Section IX,
Article III.

Hope that helps,
Regards,
Kiwi

 

[engr2GW]

Thanks a lot Kiwi2671,
That means its jus the same as qualifying procedures for pressure piping under ASME IX, but the only difference if to know the material types/specs. and knowing the strenght of electrode that can serve those materials.

 

[jbeckhou]

I would recommend reading API-6A section 6. H2S service and hardness requirements/locations, impact testing per temperature class will affect your New WPS.

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