“…There are certian Outage Problems arrise wh ile Corrosion defects totally effect the process. Wang [1] and Duan [2] reported thatsimulat ion program showing the estimate usefull life of these basic Carbon Stell pipes. If it can be managed and adopted to this formu lation to our old, e xperienced Plant, it will defin itely get real values Corrosion life of pipes as Co mpared with the Duan Simu lation formu la [2].…”