Enter the thickness for the P number.
Table UCS-57 of the ASME Code, Section VIII, Division 1 lists the maximum thickness above which full radiography is required for welded seams. This thickness is based on the P number for the material listed in the allowable stress tables of the Code.
If a seam is partially radiographed and the required thickness exceeds the P number
thickness, <aProduct> automatically changes the joint efficiency to 1.0 as stated in the Code.