By qcrobert
Date 08-18-2011 14:39
Edited 08-18-2011 14:51
Barbaros,
No enough information to answer your question concerning Welder Performance Qualification.
What country is boiler being manufactured and what country & state is boiler being installed?
As Js55 pointed out U-1 describes the Scope of pressure vessels specific to Sec VIII Div1 Code requirements.
If you are in the USA, you must have applicable ASME certification stamp which means you have a QA/QC Manual and program in place that has been reviewed and approved by ASME. AI involvement is required as he/she must approve not only the welding procedures & MTRs but the design & calculations of the boiler and/or vessel that you propose to fabricate. Also inorder to manufacture said boiler or pressure vessel, your company must have current edition of applicable Code books.
QCRobert