611-614Commercial API X-52 grade line pipe steel
was studied for its corrosion resistance in 3.5% NaCl solution under static and
dynamic conditions. Heat treatments and cold rolling resulted in considerable variations
in mechanical properties and microstructure of the steel. These treatments
resulted in insignificant changes in static corrosion rate, whereas considerable
variations in corrosion rate were
observed under dynamic conditions. Quenched and tempered steel showed the
maximum corrosion resistance and annealed steel showed the minimum resistance under
dynamic conditions