Thanks IFRs & JStephen,
The Tank height is 4300 mm Dia x 5300 mm H.
I asked API for it (whether this requirement "minimum shell course shall be 1800 mm" should applicable for all shell courses or Only bottom shell course) but I got the reply that "API is not able to provide an answer to your...
API-650, para. 5.6.1.2 said "Unless otherwise agreed to by the Purchaser, the shell plates shall have a minimum nominal width of 1800 mm (72 in)".
Does this requirement apply for all of the shell courses? (which is not practical) Or it apply only to 1st course welded to bottom plate ?
Our...