Our exact case is, we want to use S355-JR material for the anchor chair assembly, the assembly shall be prepared using the plate material except anchors. Since S355-JR is not a listed plate material as per clause 4.2. Other Codes such as ASME Section VIII-1 does not enlist the material...
(1) Do the requirements of clause 4.2 of API-650 apply to pressure parts only?
(2) What are the material requirements of API-650 for non-pressure parts?