Gentlemen's
1/ it is possible to weld two reinforcing plates of medium or low thicknesses one on the other to have a plate of reinforcement of Big thickness?
Exemple: welding of two refpads of 14mm one on the other to get refpad of 28mm.
According to API650, for the shells thickness grater than t > 12.5 mm, the Minimum Dimension Between Weld Toes shall be 8W or 150 mm (6 in).
On our tank, two nozzles DN250 had 560mm from their center lines, the outer edges (toes) of their normal reinforcing-plate fillet welds are less than eight...