WPS with ASME IX -NDT API 1104
WPS with ASME IX -NDT API 1104
(OP)
Good Morning:
We have a 34 "pipeline in a mine - tailings water, we have approved our WPS under ASME IX, but the management wants the welding joints to be evaluated under API 1104, is this possible ???
Thanks for yours answer
Juan
We have a 34 "pipeline in a mine - tailings water, we have approved our WPS under ASME IX, but the management wants the welding joints to be evaluated under API 1104, is this possible ???
Thanks for yours answer
Juan





RE: WPS with ASME IX -NDT API 1104
If there is a jurisdictional requirement to use B31.3, ASME IX must be used. This would not preclude the Owner/Purchaser to additionally require qualification to API 1104. So I must ask, what are the design requirements?
RE: WPS with ASME IX -NDT API 1104
As weldstan has requested - what is the design code ?
If it is B31.3 you cannot use API 1104 acceptance criteria.
If it is API 1104 you cannot use your ASME IX WPS.
It must be welded and tested in accordance with the design code - you cannot design to a specific code and then choose another code to test it with, with a less stringent acceptance criteria.
Cheers,
Shane