Notes: 1. Applicable for welding P-No.5A and 5C steels only 2. To minimize weld metal inclusion and oxygen content that may have a detrimental effect on toughness and creep rupture strength, only ‘basic’ type fluxes shall be permitted for SAW welding process and only basic type flux coatings or wires shall be permitted for SMAW or FCAW welding processes respectively.