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In our API 650 tank project we have curb angle to shell welding - Butt welding with full penetration. My query is now the curb angle is considered as permanent attachment and NDT requirement have to be followed accordingly or permanent attachment weld requirement not applicable to shell to curb...

In our API 650 tank project we have curb angle to shell welding - Butt welding with full penetration. My query is now the curb angle is considered as permanent attachment and NDT requirement have to be followed accordingly or permanent attachment weld requirement not applicable to shell to...

what is the NDT for butt welded bottom plates where no annular joints available. Is there any RT requirement is there or vacuum box testing is enough.

Dear Members, As per API 650 section -8 subsection 8.1.2.2. Regarding radiography of shell plate vertical weld joints API 650 stated as below. 8.1.2.2 The following requirements apply to vertical joints. one spot radiograph shall be taken in the first 3 m (10 ft) of completed vertical joint of...

Dear JStephen, Thank you for clarify my Query. Regards, Shanmuga

Dear respected members, In our project we have shell to curb angle with butt weld configuration as below. https://res.cloudinary.com/engineering-com/raw/upload/v1727321119/tips/SHELL_TO_CURB_ANGLE_WELDING_a4s7d7.docx Radiographic requirements applicable for shell to curb angle butt joints...